2025: when generator sets stopped being invisible and became essential

Mano revisando un panel solar en una instalación de sistemas híbridos solares.
As the year draws to a close, it invites us to look back with pride and forward with ambition. A period of consolidation, learning and decision-making that has shaped our path. At Genesal Energy, we have continued to move forward with the same determination that has guided us since the beginning: to innovate, to grow and to contribute to a more sustainable energy model, helping to improve society.

That spirit has guided us through every project and every challenge we have faced over these months. And it is precisely from that purpose that we have strengthened our international vocation, driven sustainability through engineering, responded swiftly to emergency situations when the country was left in the dark, and consolidated our presence in key sectors such as data centres and defence.

The blackout: readiness to respond to any emergency

The major blackout on 28 April put the entire sector’s response capacity to the test — and, in particular, that of Genesal Energy. From our headquarters in Bergondo, we activated a crisis management team that made it possible to guarantee electricity supply to hospitals and other critical infrastructures. Our generator sets operated at full capacity, while our technical team worked around the clock to ensure that no vital facility was left without power.
Técnico midiendo el rendimiento de un panel solar con un multímetro.
Thanks to this rapid response and coordination, we supported centres such as CHUAC, the Teresa Herrera Maternal and Children’s Hospital, Álvaro Cunqueiro Hospital, as well as several hospitals in Madrid and Toledo, among others. Subsequent media coverage highlighted the essential role of backup power solutions in long-duration contingencies.
There are moments when technology speaks for itself. At other times, it is the commitment of a team that speaks. That day, both did.

Momentum in the defence sector and international expansion

In a geopolitical context marked by instability and sustained growth in defence investment across Europe, energy reliability has become a critical factor in ensuring the operability of strategic infrastructures.

We will continue investing in growth with a new expansion of our main factory, increasing production capacity and activity at a pace similar to that of 2025.

Within this environment, the engineering expertise and robustness of our equipment have found a natural space. In 2025, we deployed bespoke solutions designed to operate under extreme conditions, both domestically and internationally, including installations in Germany aimed at maintaining critical military infrastructures operational. These projects demonstrate our ability to adapt designs, advanced protections and safety systems to top-tier operational requirements.

Likewise, our participation in strategic trade fairs and forums such as FEINDEF has strengthened our visibility in a rapidly evolving market. As a result, Genesal Energy continues to consolidate its position as a trusted supplier, delivering solutions to organisations that require equipment capable of ensuring continuous power in any scenario — from logistics bases to command centres and field operations.
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When sustainability moves beyond promises and becomes operational

In 2025, Genesal Energy became the first company in the energy sector to obtain ISO 14006 certification, setting a benchmark for applied sustainability. This achievement is more than just a label: it confirms that we have embedded eco-design into our DNA, into every decision and every stage of our products’ life cycle.
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We have optimised designs, reduced material use, explored additive manufacturing to minimise resource consumption, assessed environmental impacts through rigorous analysis, and embraced biofuels and cleaner alternatives. This approach reinforces our role as a reference player and a key contributor in the distributed energy sector, where sustainability is only possible through technical excellence. Because, ultimately, what truly matters is being good engineers: delivering robust, efficient and responsible energy solutions, and always responding to our clients.

Powering the digital heart of the world

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The digital world cannot function without reliable energy. In 2025, we took a decisive step to support this global growth with solutions equal to the challenge. As an active part of European engineering in the sector, our strategic alliance with the French company Baudouin marked a turning point in our commitment to data centres: combining experience, technology and a shared vision to deliver high-capacity, fully customisable generator sets, with the shortest lead times on the market and compatibility with renewable fuels such as HVO.

A period of consolidation, learning and decision-making that has shaped our path.

We showcased these solutions at international forums — with a strong presence at DCD>Connect in Madrid and London, as well as at the DataCenter Forum in Stockholm — where we presented equipment focused on operational continuity, efficiency and the transition towards more sustainable fuels.

HVO: proof that the energy transition can be real — today

The successful validation of HVO as a biofuel in operational generator sets is another of those quiet achievements that anticipate the future. We demonstrated that it is possible to reduce emissions without changing infrastructures or compromising reliability. The tests we carried out confirm that HVO is a technically viable alternative for diesel engines, requiring no modifications to existing infrastructures, while preserving reliability and service continuity.
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This milestone aligns with Genesal Energy’s ambition to move towards carbon neutrality and with our commitment to the 2030 Sustainable Development Goals, to which we are aligned. It is a technical advance, certainly, but also a clear message: the energy transition is not a distant horizon — it is a real process that we are already driving today.

Driving talent, territory and the future

At Genesal Energy, we understand social responsibility as a way of shaping the future. That is why, this year, we strengthened our commitment to talent, territory and education through our participation in youth employment fairs and sector events such as the Energy Days and their Women in STEM seminar. Through these initiatives, we have helped bring energy engineering closer to the entrepreneurial ecosystem. These actions allow us to inspire vocations, create opportunities and transmit values we consider essential — technical excellence, sustainability and a culture of effort — so that new generations can lead the change the energy sector needs.
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This commitment will gain renewed momentum through the Genesal Foundation, currently in the process of being established and scheduled to launch next year. The Foundation will serve as the backbone of our social activity and our contribution to the community, channelling initiatives focused on talent development, education, innovation and positive impact in the environments where we operate.

2026: continuing to build the future of energy

The year ahead invites us to put what we have learned into practice and to project our achievements towards new horizons. In the coming year, we will continue to focus on consolidating our international expansion, deepening our presence in critical application sectors, and advancing the integration of sustainable processes across every project. To achieve this, we will adapt to new regulations and standards, driving more efficient, reliable and responsible solutions.

We have strengthened our international vocation, driven sustainability through engineering, responded swiftly to emergency situations when the country was left in the dark.

At the same time, we will continue investing in growth with a new expansion of our main factory, increasing production capacity and activity at a pace similar to that of 2025, with a consolidated growth of 40%. This investment will also extend to our people, as this progress would not be possible without a committed and talented team like ours.
Técnicos revisando un panel solar en un entorno de trabajo técnico.
We enter this new year with enthusiasm and determination, convinced that the energy of the future is built today — and that Genesal Energy will remain steadfast on this path, guided by its purpose and vision.

The future of generator sets: More sustainable and connected

Mano revisando un panel solar en una instalación de sistemas híbridos solares.
In an increasingly complex energy landscape, where electrification, renewable energies and the need for continuous power supply coexist even in the event of grid failures, generator sets play a decisive role. Their evolution in terms of sustainability, efficiency and connectivity is redefining their presence in critical sectors and in environments where generating electricity in an environmentally responsible way has become an essential requirement. This article analyses how the sustainable generator set is evolving, its role in the energy transition and the technologies that will shape its future.

The role of generator sets in the energy transition

The transition towards clean energy has driven a profound change in the way energy is produced. As the penetration of renewable energy increases within the energy mix, so too does the need for backup systems capable of guaranteeing continuous power when environmental conditions prevent renewable sources from fully meeting demand.

The future of generators lies in further promoting hybrid solutions, alternative fuels and technologies that make better use of renewable energy.

In this context, the generator set remains a strategic energy source. Its role is no longer limited to acting as emergency equipment: today it is integrated as part of the energy ecosystem of industries, hospitals, data centres and critical infrastructures, providing operational flexibility and security. For companies and public administrations, ensuring energy supply in the event of interruptions or demand peaks is essential, and generators are becoming a key tool in this new hybrid and dynamic model.
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How to reduce environmental impact in power generation

Sustainability has become a central pillar in the design and manufacture of equipment intended to generate electricity. The need to reduce the greenhouse effect and to develop increasingly environmentally friendly equipment has led to new approaches aimed at creating generator sets adapted to the environmental requirements of the future.
This progress involves action on several fronts: improving engine efficiency, optimising combustion systems, reducing energy losses and using materials with a lower environmental impact. In addition, eco-design principles and the identification of environmental aspects at each stage of the generator’s life cycle help minimise its environmental footprint, from initial design through to on-site operation.
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Increasingly stringent emissions regulations are also accelerating the development of cleaner generators, capable of operating with lower consumption and reduced pollutant emissions. As a result, manufacturers are investing in technologies that reduce emissions without compromising the operational reliability that characterises these systems, while maintaining optimal performance.

Use of alternative fuels and renewable energies

The path towards a sustainable generator necessarily involves fuel diversification. The introduction of HVO (hydrotreated vegetable oil), advanced biofuels or even blends with green hydrogen opens up a range of solutions to progressively replace traditional fossil-based fuels.

Efficiency is one of the main indicators of technological progress in generator sets.

Renewable fuels allow generators to operate with a significantly lower carbon footprint and offer additional advantages: they require no major modifications to many modern diesel engines and maintain the operational stability needed for critical environments. These alternatives are complemented by the growing drive to integrate generator sets into hybrid systems based on renewable energy.
Ongoing R&D in this field is enabling generators to operate as part of a flexible energy system in which sustainable fuels, energy storage, power electronics and renewable energy sources coexist to optimise every kilowatt consumed.
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Integration of generator sets with solar panels and wind energy

Infrastructures that combine generators with solar panels or wind farms are no longer a trend, but a rapidly expanding reality. The combination of generators and clean energy sources makes it possible to reduce fuel consumption, extend autonomy and lower overall system emissions.
In off-grid applications, such as remote areas not connected to the electricity grid, hybridisation is essential to produce energy efficiently. Solar panels provide daytime generation, wind energy complements supply at variable times, and the generator acts as a backup when weather conditions do not allow demand to be fully met. This model improves overall system performance and significantly reduces dependence on fuel.
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The result is a sustainable power generator capable of operating in complex scenarios, offering greater autonomy and optimised control of available resources.

Technological advances to improve efficiency and reduce emissions

Efficiency is one of the main indicators of technological progress in generator sets. The development of more advanced engines, high-pressure injection systems, optimised turbochargers and exhaust after-treatment systems has enabled modern generators to consume less fuel and emit fewer pollutants to meet the same energy requirements as previous generations.

The transition towards clean energy has driven a profound change in the way energy is produced.

Improvements are not limited to the engine itself: electronics play a decisive role in load management, start-up optimisation, avoidance of unnecessary consumption and adjustment of operation to real demand. In parallel, energy storage solutions make it possible to combine batteries and generators to further reduce consumption when demand is low.
Continuous innovation in these areas helps consolidate the sustainable generator set as a more efficient solution, ready to meet future environmental standards.
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Connectivity and intelligent monitoring in power generators

Connectivity has transformed the way data from modern generators is managed and interpreted. Remote monitoring systems allow real-time supervision of operating parameters, alarms, consumption, emissions and load trends. Thanks to this connectivity, equipment benefits from more effective predictive maintenance, higher availability and lower operating costs.
Digitalisation turns the generator into an active element within the energy ecosystem, capable of communicating with other equipment, integrating into management platforms and supporting data-driven technical decisions. For industries that require continuous power, this intelligence adds security, reliability and efficiency.

Trends and the future of generator sets in a sustainable world

The future of generators lies in further promoting hybrid solutions, alternative fuels and technologies that make better use of renewable energy. The trend is clear: to develop equipment that reduces environmental impact without sacrificing the reliability that has always defined the sector.
Técnicos revisando un panel solar en un entorno de trabajo técnico.
The combination of technology, sustainability and connectivity is shaping a new standard in which the generator becomes a flexible, optimised element capable of integrating with clean energy sources to deliver efficient, stable power supply aligned with the demands of a more sustainable world. In this scenario, companies that invest in innovation and environmentally responsible approaches will lead the transformation towards a safer and more resilient energy system.

Simplifying without dismantling: the Omnibus Package and the future of European ESG regulation

In recent years, the European Union has rolled out one of the most ambitious sustainability regulatory frameworks in the world.

Directives such as the CSRD, the CSDDD and the CBAM have placed companies at the heart of the ecological and social transition, assigning them a key role in emissions reduction, transparency and due diligence throughout the value chain. This regulatory expansion, however, has been accompanied by growing criticism from Member States and the business sector, which have warned about the complexity of the resulting framework, the overlap of obligations and its impact on European industrial competitiveness.

Sustainability cannot be built solely on increasingly complex regulatory frameworks, but rather on clear, coherent and applicable regulations.

It is in this context that the Omnibus Package has emerged: an initiative by the European Commission designed to review and adjust this regulatory framework without dismantling it. Far from constituting a single piece of legislation, the Omnibus acts as a cross-cutting amending instrument, introducing coordinated changes to several key components of the European ESG framework with the aim of aligning regulatory requirements with companies’ actual capacity to comply and with their potential impact.

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Presented in February 2025, the Omnibus Package has progressed over the past year through an intense process of institutional negotiation. The positions of the Council and the European Parliament have gradually converged, leading to political agreements that significantly reshape both the scope and the intensity of corporate sustainability obligations in the European Union, particularly through amendments to the CSRD and the CSDDD.

CSRD: fewer companies in scope, greater focus on large organisations

The Corporate Sustainability Reporting Directive (CSRD), which replaces and expands the former Non-Financial Reporting Directive, was originally designed to extend sustainability reporting to tens of thousands of European companies. The Omnibus Package introduces one of its most significant changes here by redefining the applicability thresholds, with the aim of concentrating the most complex obligations on organisations with the greatest potential impact and the greatest capacity to generate comparable and verifiable information.

As a result, the obligation to report under the CSRD is now limited to companies with more than 1,000 employees and annual turnover exceeding €450 million. In the case of third-country companies, the directive applies where turnover generated within the European Union also exceeds this threshold.

The Omnibus Package represents a step in the right direction, opening the door to a more functional regulatory framework focused on the effective reduction of unnecessary burdens.

The Omnibus also introduces technical adjustments to the practical application of the CSRD, particularly with regard to the level of reporting detail and information from the value chain. The European Sustainability Reporting Standards (ESRS) remain the technical framework, but their application is more precisely defined, allowing data collection to be limited to those parts of the value chain where there is genuine influence or where clear material risks have been identified.
This approach has direct implications for the protection of small and medium-sized enterprises, which under the original design of the CSRD could have been subject to disproportionate obligations as suppliers to large companies. By linking information requests to materiality and actual influence, the Omnibus reduces the cascading effect and limits the systematic transfer of regulatory burdens to SMEs. It also explicitly recognises the possibility of using estimates, sectoral data or aggregated information where reliable primary data cannot be obtained, provided that this choice is duly justified.
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At the same time, the Omnibus Package strengthens coherence between the CSRD and the EU Taxonomy, clarifying that the obligation to report under the CSRD does not automatically entail reporting with the same level of detail on taxonomy alignment. The scope of Taxonomy-related reporting must be aligned with the financial materiality of the company’s activities and their effective fit with the defined technical criteria.
Within this framework, the principle of double materiality remains a structural pillar of reporting, but its practical role as a prioritisation tool is reinforced. This allows companies to document why certain indicators or disclosures are considered relevant and others are not, avoiding a uniform approach that would require reporting information of limited significance from an impact or financial risk perspective.

CSDDD: more limited and gradual due diligence

The Corporate Sustainability Due Diligence Directive (CSDDD) has been one of the most controversial elements of the European ESG framework, both in terms of its scope and its legal implications. The Omnibus Package introduces substantial changes here, starting with a very restrictive redefinition of its personal scope of application compared with the directive’s original design, which covered companies with at least 1,000 employees and €450 million in turnover. The new framework limits its application to companies with more than 5,000 employees and global turnover exceeding €1.5 billion.

The Omnibus acts as a cross-cutting amending instrument, introducing coordinated changes to several key components of the European ESG framework.

Alongside this adjustment, the Omnibus redefines the material scope of due diligence, limiting enhanced obligations to established business relationships and to areas where adverse risks have been identified and are reasonably foreseeable. This enables companies to prioritise actions and focus resources, rather than deploying uniform controls across the entire value chain.
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The Omnibus also removes the explicit obligation to adopt binding climate transition plans as part of CSDDD compliance and thoroughly revises the civil liability regime, limiting automatic exposure to claims and linking liability to the reasonableness of the measures adopted. The sanctions regime is also adjusted, setting caps at around 3% of global turnover and reinforcing the principle of proportionality.

From an institutional perspective, these changes are justified as a means of ensuring the directive’s legal, operational and economic viability. However, they have attracted criticism from social and environmental organisations, which argue that the reduction in scope and obligations may weaken its transformative potential.

Taxonomy and CBAM: continuity with technical adjustments

Although the main focus of the Omnibus Package has been on the CSRD and the CSDDD, the initiative also introduces relevant adjustments to other key instruments of the European sustainability framework, particularly the EU Taxonomy and the Carbon Border Adjustment Mechanism (CBAM), with the aim of improving internal coherence and reducing unnecessary administrative burdens.

In the case of the EU Taxonomy, the Omnibus does not alter the technical criteria for classifying sustainable economic activities, but it does more precisely redefine the scope and intensity of the associated reporting obligations. The new approach clarifies that not all companies required to report under the CSRD must do so with the same level of detail in relation to the Taxonomy.
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In practice, a more selective and proportionate application of taxonomy reporting is introduced, linking the level of information required to the financial materiality of activities and their effective alignment with the defined technical criteria. This translates into greater flexibility when reporting key indicators (such as aligned CAPEX or OPEX) where the company’s activity cannot be clearly classified as eligible or aligned, or where such information is not financially material. The aim is to avoid duplication with the CSRD and reduce the production of complex information with limited analytical value.

The European Sustainability Reporting Standards (ESRS) remain the technical framework, but their application is more precisely defined.

As for the CBAM, its basic architecture is maintained as an instrument designed to prevent carbon leakage and ensure more balanced competitive conditions between European and non-EU producers. However, the Omnibus Package introduces technical and operational adjustments intended to facilitate its implementation, particularly with regard to administrative requirements for importers, the collection of data on embedded emissions and coordination with other EU climate instruments. These adjustments seek to improve the mechanism’s practical applicability without altering its core objective or environmental rationale.

Simplification or rollback?

The debate surrounding the Omnibus Package has often been framed in terms of simplification versus ambition. However, a technical reading of the set of amendments points to a different issue: the actual effectiveness of the regulatory framework. After several years of very intense regulatory expansion, the Omnibus responds to the need to correct dysfunctions identified in the practical application of certain obligations, particularly those that have generated duplication, high administrative burdens or limited results in terms of environmental and social impact.
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From this perspective, the adjustments introduced do not necessarily imply abandoning the objectives of the European Green Deal, but rather an attempt to redirect regulatory efforts towards areas where they can generate a genuine transformative effect, avoiding a situation in which excessive complexity ultimately dilutes effectiveness or diverts resources towards purely formal compliance. The challenge will be to ensure that simplification does not lead to the creation of new instruments that are equally complex or impractical, reproducing under different formats the very problems now being addressed. Even so, the Omnibus Package represents a step in the right direction, opening the door to a more functional regulatory framework focused on the effective reduction of unnecessary burdens.

The Omnibus Package has progressed over the past year through an intense process of institutional negotiation.

From the perspective of Genesal Energy, this approach is particularly relevant for the European industrial fabric. Sustainability cannot be built solely on increasingly complex regulatory frameworks, but rather on clear, coherent and applicable regulations that allow companies to concentrate resources on the real improvement of their processes, products and value chains. When administrative burdens exceed operational capacity, there is a risk that sustainability becomes a purely documentary exercise, disconnected from the industrial transformation it is meant to drive.
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Ultimately, the success of the Omnibus Package will not be measured solely by the number of obligations adjusted, but by its ability to strengthen the competitiveness of European industry while keeping long-term sustainability objectives firmly in sight. It is within this balance between ambition and applicability that much of the future of the European regulatory model — and its capacity to effectively support the transition towards a more sustainable economy — will be determined.

Energy security for drinking water projects in Norway: integrated solutions for continuous operation in remote environments

Access to drinking water is a challenge in many areas where electrical infrastructure is limited or non-existent.

In emergency situations, humanitarian missions or temporary camps, having independent generation systems becomes essential to ensure supply continuity and safeguard community health.

Genesal Energy has extensive experience in this field and has developed a tailor-made installation for a project located on an island in Norway.

Reliable energy where it matters most

The project involved the design and manufacture of a custom-built container featuring a 110 kVA genset. This unit powers an atmospheric water generation system, a technology capable of producing drinking water from ambient humidity. Entirely independent from the electrical grid and able to operate continuously for more than a day, the system can function reliably in remote or harsh environments where energy availability is critical to maintaining water supply.

Integration and adaptation for demanding environments

To address the project’s challenges, the client required three key factors: supply security, extended autonomy and compact integration within the container, while preserving enough space for the remaining components of the water treatment system.
The Genesal Energy engineering team adapted the container supplied by the client to comply with the company’s manufacturing standards, ensuring both functionality and efficiency of the genset.

This unit powers an atmospheric water generation system, a technology capable of producing drinking water from ambient humidity.

One of the main challenges was integrating an open-type genset with a high-capacity fuel tank into a very confined space without compromising functionality or autonomy. Furthermore, the limited accessibility for operation and maintenance required a strategic redistribution of components to ensure optimal placement, ease of handling and installation safety.

Key features

  • Special soundproofed container with a dedicated genset room and thermal insulation in the control area for low-temperature environments.
  • Custom-built skid adapted to the space allocated by the client.
  • Integrated 1,000-litre fuel tank for extended operation.
  • Engine coolant recirculation and heating system to ensure optimal starting performance in cold climates.
  • Set painted in the RAL colour requested by the client.
  • External control panel integrated into the client’s main panel for easier operation.

Tailored backup power for a data centre at a telecommunications company in Madrid

Ensuring electrical continuity in DPCs is essential. Servers, storage systems and other critical equipment must remain operational 24/7.

Any interruption in the power supply can affect thousands of users and compromise data availability.

Genesal Energy designed and supplied a 165 kVA generator set for the data centre at the headquarters of a telecommunications company in Madrid, ensuring that both the DPC and the auxiliary facilities can continue operating normally even in the event of prolonged mains outages.

A compact, autonomous and high-performance generator set which can maintain uninterrupted operations.

The client required a robust, reliable unit with long autonomy. To meet this need, we integrated a 995 litre fuel tank directly into the generator’s baseframe, optimising the available space and facilitating its installation within the DPC environment.

Additionally, we customised the unit with the company’s corporate colours, combining functionality with aesthetics and ensuring perfect integration within the facility.

The generator set also includes a 250A 4 Pole 230V motorised transfer switch, enabling quick and safe switching between the grid and the generator. This ensures that DPC operations continue without interruption, even under critical circumstances. This level of autonomy and control makes the solution ideal for facilities requiring a constant and reliable electrical backup.

Efficient, collaborative engineering

To deliver this project, our engineering team reviewed all the client’s specifications and adapted existing solutions from our design library, making the necessary adjustments to meet the requirements for power, autonomy and available space. Once the 3D design was completed, all drawings were validated with the client before manufacturing began.

The client required a robust, reliable unit with long autonomy.

Collaboration between engineers and plant personnel was key to anticipating potential challenges and optimising the assembly of the generator set. The team’s experience and the technicians’ insights enabled us to improve the manufacturing process and ensure a reliable, efficient and safe product, ready to respond to any eventuality affecting the DPC’s power supply.

A result that makes a difference

The final result is a compact, autonomous and high-performance generator set which can maintain uninterrupted operations, safeguarding essential systems and information, even in the face of unexpected electrical failures.

Key Features

  • Separate Power Cabinets and Control Cabinet integrated into an independent electrical room inside the soundproof container.
  • Canopy painted in the client’s corporate colours, NCS S 3560 R80B, combining aesthetics and functionality.
  • 995-litre fuel tank integrated into the skid, optimised for space saving and extended autonomy, featuring a liquid collection system.

Hybrid Solar Systems with Diesel Generators for Remote Areas

Hand inspecting a solar panel in a solar hybrid system installation.

What is a Hybrid Solar System and How Does It Work?

Hybrid solar systems are energy solutions that combines solar photovoltaic power with another generation source, usually a diesel generator or a battery storage system. Its purpose is to ensure a continuous, stable and efficient electricity supply, even in areas without access to the electric grid or where the connection is unreliable.
In a solar hybrid system, photovoltaic panels capture solar radiation and convert it into electrical energy. This electricity is used to power local consumption or charge the solar batteries, which store the excess energy for later use.

Solar batteries are a key component in hybrid energy systems.

When solar radiation is insufficient or the batteries are depleted, the diesel generator starts automatically to cover the energy demand. The hybrid inverter intelligently manages the available energy sources, prioritising solar power and optimising fuel consumption.

Advantages of Combining Solar Energy with Diesel Generators

Hybrid solar energy systems offer a sustainable and cost-effective alternative to conventional diesel-only systems. Their main advantages include:

  • Fuel savings: by using solar energy, the operating hours of the diesel generator are significantly reduced, lowering operational costs.
  • Reduced emissions: less diesel consumption means lower CO₂ emissions and environmental impact.
  • Greater autonomy: the combination of both sources guarantees 24/7 power supply, even under adverse weather conditions.
  • Lower maintenance: fewer operating hours extend the lifespan of the generator.
  • Total reliability: the hybrid solar-diesel system ensures a stable power supply in locations where the grid is unavailable or unstable.

For these reasons, hybrid solar systems are an ideal solution for remote areas, critical facilities, rural environments or industrial projects far from the grid.
Technician measuring the performance of a solar panel with a multimeter.

Key Components of a Solar-Diesel Hybrid System

A hybrid solar photovoltaic system is made up of several essential components that work together efficiently:

  • Solar photovoltaic panels, which capture sunlight and generate electricity.
  • Hybrid inverter, which manages the conversion from DC to AC and controls the energy flow between sources.
  • Solar batteries, which store energy for use during low or no sunlight hours.
  • Diesel generator, which automatically starts when solar and stored energy are insufficient.
  • Control and monitoring system, coordinating operations for maximum efficiency.
  • Electrical panels and protections, ensuring safety throughout the installation.

Types of Hybrid Solar Systems by Configuration

Different types of hybrid solar systems exist depending on their connection and operation mode:

  • Grid-connected systems: combine solar, diesel, and grid energy. When grid power is available, solar energy is prioritised; the generator acts only as backup.
  • Off-grid or stand-alone systems: operate without a grid connection. These are ideal for remote sites and must be properly sized for solar generation, diesel backup and battery capacity.
  • Modular hybrid systems: allow adding panels, batteries or generators as energy needs grow. Their scalability makes them especially suitable for industrial projects or rural electrification.

Technicians inspecting a solar panel in a technical work environment.

The Role of Batteries in Energy Storage

Solar batteries are a key component in hybrid energy systems, storing energy generated by photovoltaic panels for later use.
They make it possible to have electricity available at night or during low-sunlight periods, minimising the need to start the diesel generator.

Ongoing innovation will make solar hybrid systems increasingly efficient, reducing diesel consumption.

Choosing the right battery type and capacity — lithium, AGM or gel — directly impacts the system’s efficiency, performance and lifespan.

How to Optimise Consumption and Reduce Diesel Use

The main goal of a solar-diesel hybrid system is to reduce fuel consumption without compromising power continuity. Key strategies include:

  • Installing smart controllers that prioritise solar energy use.
  • Adjusting generator operation times to match demand.
  • Incorporating high-efficiency batteries to increase autonomy.
  • Carrying out preventive maintenance to maximise generator performance.
  • Designing a photovoltaic installation properly sized for peak demand.

Applications and Use Cases in Remote Areas

Hybrid solar systems with diesel generators are widely used in applications where grid access is limited or non-existent:

  • Critical infrastructure: telecommunications, weather stations and healthcare facilities.
  • Remote industrial operations: mining, oil and gas, civil works or water treatment plants.

Aerial view of a rural area with wide fields and scattered buildings.

  • Rural areas and isolated communities, enabling electrification where the grid cannot reach.
  • Emergency or military projects, requiring autonomous, robust and fast-deployable energy.

Thanks to their flexibility, hybrid solar systems provide continuous and sustainable power even in the most demanding environments.

Trends and the Future of Hybrid Solar Systems

The future of hybrid solar photovoltaic systems is driven by digitalisation, improvements in battery capacity, and integration with smart management technologies.
Ongoing innovation will make solar hybrid systems increasingly efficient, reducing diesel consumption, advancing decarbonisation, and increasing the energy independence of remote areas.

In a solar hybrid system, photovoltaic panels capture solar radiation and convert it into electrical energy.

In this evolution, diesel generators will continue to play a crucial role as reliable backup units within hybrid energy solutions, ensuring continuity when renewable sources are insufficient.
The trend is clear: combining solar energy with efficient, flexible generation technologies will be key to guaranteeing a stable, sustainable, and adaptable power supply for the energy challenges of the future.

Simplifying to Move Forward: How We Apply the Spirit of the Omnibus Regulation

Bosque iluminado por el sol como metáfora del avance hacia una sostenibilidad más simple impulsada por el Reglamento Ómnibus.
Sustainability is entering a new phase. After years of directives, reports, and standards, Europe has realised that reporting alone is not enough — what matters is not how much is reported, but how much is transformed. With the approval of the Omnibus Regulation, the European Commission is taking a decisive step in that direction, simplifying the way companies report their environmental, social, and governance performance so that sustainability regains the meaning it should never have lost: action.

Properly managed sustainability not only reduces costs or emissions — it also opens doors.

This regulation was not created to lower ambition, but to restore coherence. In recent years, the CSRD Directive and the European Sustainability Reporting Standards (ESRS) have raised the bar for corporate reporting, but in doing so, they also imposed a disproportionate burden on many SMEs. It’s not just about gathering information: the CSRD required companies to measure dozens of environmental, social, and governance indicators with the same level of detail as large corporations. For an industrial SME, that means allocating human and financial resources it may not have, creating complex management systems, investing in digital tracking tools, and training staff in methodologies that until recently were exclusive to multinational ESG departments. In practice, sustainability was starting to look more like an exercise in bureaucracy than a process of improvement, diverting attention from the real goal: reducing impacts and creating value.
Team analysing data to apply the criteria of the Omnibus Regulation.
The Omnibus Regulation, approved in 2025, aims to correct that course. Its goal is to simplify administrative burdens and focus on material indicators — those that truly reflect an organisation’s impact on its surroundings. It’s essentially the same approach that guides our evolution: data that inspire decisions, measurements that drive change, sustainability that translates into action.

Measuring What Matters — and Acting on What Can Be Measured

At Genesal Energy, we’ve always understood sustainability as a tool for innovation and improvement, not a reporting obligation. That’s why, even before the Omnibus Regulation came into force, we were already working under the principles it now promotes: prioritising what’s relevant, reducing complexity, and focusing management on tangible results.
The new European framework particularly strengthens three key areas — those that concentrate most of the changes introduced by the Omnibus Regulation:

  • E1: Climate change. Updated requirements for measuring greenhouse gas emissions, improving energy efficiency, and advancing towards a genuine transition to clean energy.
  • E5: Resources and circularity. Simplified indicators with greater emphasis on responsible use of materials, waste reduction, and the adoption of circular economy principles.
  • S1: People and the value chain. Strengthened social aspects: training, occupational health and safety, and ethical management across the entire supply chain.

E1. Climate Change: More Efficient Energy, Lower Impact

Our commitment to climate action is reflected in the way we manage energy. At our facilities in Bergondo (A Coruña), we have developed a model that integrates renewable sources, smart storage, and consumption optimisation.
Genesal Energy facilities
The photovoltaic façades and roofs of our B27 and B28 plants generate part of the electricity we consume. Thanks to OGGY, our energy management and storage system, we can monitor production, consumption, and energy flow in real time. Its algorithm automatically decides whether to self-consume, store, or feed energy back into the grid — optimising every kilowatt used.

The results are tangible:

  • We have reduced our annual energy consumption by 27%.
  • We have improved the energy efficiency rating of our facilities from Category E to B.
  • We avoid more than 23 tonnes of CO₂ emissions per year.

These figures are more than indicators — they are proof that sustainability is also a matter of engineering. Our industrial complex now operates as a small microgrid: an energy ecosystem capable of producing, storing, and managing its own electricity efficiently and autonomously.

E5. Resources and Circularity: Designing for the Entire Lifecycle

In this new European context, responsible resource management has become more relevant than ever — and at Genesal Energy, we have long been working in that direction. Efficient use of materials, waste reduction, and the incorporation of circular economy criteria are at the core of our eco-design policy.

That’s why we implemented an eco-design management system certified under ISO 14006, which enables us to assess the impact of each component, material, or manufacturing process — and redesign wherever there’s room for improvement.

Simplify administrative burdens and focus on material indicators — those that truly reflect an organisation’s impact on its surroundings.

This work has led to concrete progress:

  • Replacement of conventional materials with recycled or recyclable ones — for example, replacing metal parts with 3D-printed recycled polymers, reducing emissions linked to transport and processing.
  • Incorporation of local suppliers (km 0) to cut the logistics footprint.
  • Elimination of welding or painting processes in certain components, reducing emissions and waste.

Thanks to these actions, some components have reduced their carbon footprint by more than 80% compared to the original materials.
But eco-design goes beyond the technical aspect — it also transforms the way we communicate. Our eco-designed products include environmental data and comparisons that allow clients to understand the savings in emissions and materials compared to previous models. This transparency is part of our commitment: providing clear, useful, and verifiable data that reflect the positive impact of every improvement we make.
Wildlife in a natural environment and an industrial process with machinery.

S1. People and Knowledge: Learning to Transform

Sustainability is not limited to technology or processes; it also has a human dimension that is essential for progress. At Genesal Energy, we understand that knowledge, education, and social collaboration are fundamental pillars for building a fair and lasting energy transition — and we channel that commitment through the Genesal Energy Foundation.
Through the Foundation, we promote educational, social, and environmental projects that reflect our understanding of sustainability as a shared effort between business and society. We carry out training and awareness activities on energy and environmental issues, support cultural and social initiatives in our local community, and collaborate with organisations working towards more balanced and sustainable development.

Efficient use of materials, waste reduction, and the incorporation of circular economy criteria are at the core of our eco-design policy.

Our goal is to create a positive impact that goes beyond industrial activity — contributing to people’s well-being and to the progress of the environment in which we operate. We believe sustainability begins in the factory, but only becomes meaningful when it’s shared — when knowledge, responsibility, and social action move forward together.

From Measurement to Action

Measurement only makes sense if it leads to action — and at Genesal Energy, we’ve been living by that principle for years. Our environmental policy and management systems — certified under ISO 14001, ISO 14006, ISO 45001, ISO 9001, and UNE 166002 — enable us to turn indicators into technical and business decisions.
Coral reef with colourful fish swimming in clear waters.
We measure our emissions, consumption, and waste — but what matters most is what we do with that information: we select sustainable suppliers, redesign parts, optimise packaging, improve testing efficiency, and reduce impacts at every production stage. In our experience, industrial sustainability is managed with the same precision as any engineering process. It’s not a separate part of the business — it’s part of the way we design, manufacture, and operate.

The new European framework reinforces this vision. Properly managed sustainability not only reduces costs or emissions — it also opens doors. It allows us to access green financing, participate in European projects, and be chosen by clients who value vision and environmental commitment. Sustainability is no longer an obligation; it’s a credential — and a guarantee: the mark of a company that innovates, adapts, and embraces its role in the energy transition with coherence and responsibility.

Dense forest covered in mist.
That’s why we continue to work by a simple principle: less bureaucracy, more innovation; fewer papers, more clean energy; less noise, more consistency.
Europe’s energy transition will be built on data — but above all, on examples. And ours is that of an industrial SME that has decided to integrate sustainability into its DNA — not as a distant goal, but as a way of moving forward every day.

Energy security in car parks: a new project in a public car park in France

Car parks, particularly when underground or large-scale, require a continuous power supply to ensure car & people’s protection (energy security in car parks). In the event of an outage, ventilation systems would stop working, and the risk of poisoning could rise within minutes.

Similarly, without emergency lighting or active signage, evacuation during a fire could be compromised, creating dangerous and panic situations.

Our latest project in this area has been the design and manufacture of a bespoke tailor-made genset for a public car park in France to guarantee power supply in the event of a mains failure ensuring compliance with the strict safety regulations applicable to public spaces of this kind.

A vital need in a busy environment

Our engineering team developed a 250/275 kVA genset housed in a 3400mm soundproofed canopy, equipped with a Baudouin engine and a high-performance Leroy Somer alternator. This design ensures reliability, durability and ease of maintenance.

Guarantee power supply in the event of a mains failure ensuring compliance with the strict safety regulations applicable to public spaces.

The generator is fitted with a built-in 500-litre tank, providing up to 8 hours of autonomy, thereby ensuring critical systems remain operational for an entire day in the event of an incident. To further enhance safety, we integrated specific features such as externally operable fuel shut-off valves, redundant control & battery systems, protections against moving and hot parts, and emergency stop push-buttons.

Reliability, safety and continuity

Beyond the robustness of the equipment itself, reliability in this project is reflected in compliance with strict French safety regulations, specifically NF-E-37-312, applicable to this type of installation. This means that the genset not only provides backup power but also ensures the installation meets the highest standards of protection and risk prevention.

Features

  • Design type: Monoblock in 3400mm soundproofed canopy.
  • Fuel tank: 500 litres integrated into the base frame.
  • Control panel: ComAp InteliLite AMF25 IL4.
  • Redundant battery system.
  • Emergency start controller: ComAp InteliNano.
  • Safety fuel shut-off valve.
  • Compliance with NF-E-37-312 safety regulations.

Genesal Energy designs tailor-made generator sets for large retail outlets.

Genesal Energy has designed a generator set to guarantee energy in a shopping centre in Germany and replace its previous generator.

The genset had to be integrated without the need to modify the existing installations and to have a high autonomy and direct connection to an external fuel tank.

With these indications, our engineering team designed a solution with the necessary features to replace the previous equipment without the need for major modifications existing infrastructure. The control unit was located in a special position that allows access without the need to open the side doors, enhancing space and operability at both an operational and aesthetic level, as it also complied with the specific colour and marking requested.

Our proposal included a control unit in a special position which can be accessed without having to open the side doors of the set.

Bearing in mind that shopping centres are spaces where activity does not stop, the electricity supply must be guaranteed at all times to ensure its proper functioning, as a failure in the grid can lead to operational interruptions, affecting customers, generating economic losses and compromising the safety of the premises.

To prevent this kind of situation, this set has an automatic start-up system, ensuring its immediate activation in the event of a failure in the main network. In order to achieve maximum autonomy, the engineering team designed an external fuel tank by means of wall-bushings, allowing a continuous supply without the need for frequent refuelling.

Thanks to this Genesal Energy design, the shopping centre has a reliable solution adapted to its needs, ensuring that, in the event of any grid failure, activity continues without interruption.

Our Engineering Solution

Based on the client’s specific need to replace an old unit with this new one, we designed a unit as similar as possible to the already existing. Our proposal included a control unit in a special position which can be accessed without having to open the side doors of the set. It was installed in the same precise location without having to make any modifications.

Features

  • AMF Mains failure start.
  • Deif AGC 150 control panel.
  • No fuel tank integrated in the base, only liquid collection tray with sensor for leak detection.
  • Wall bushings for fuel lines (suction and return) from external tank.
  • Protective mesh against animals (at air inlet and outlet).
  • Special customer marking.
  • Unit painted in the customer’s required colour – RAL 5003.
  • Oil extraction hand pump.
  • Heating water recirculation pump.
  • Fuel pre-filters with water decanter.
  • Special batteries.
  • Completely covered power supply preventing any access to live parts.

How to Calculate the kVA Required for a Generator

Technician inspecting an electrical panel while checking performance data on a tablet.
Choosing the right generator involves much more than just looking at the brand or the price. One of the most important aspects is knowing how to calculate the kVA of a generator to ensure it will meet all your energy needs without oversizing the unit or compromising its performance.

At Genesal Energy, we specialise in the correct dimensioning of generator sets and in designing tailor-made solutions for each client.

This value represents the generator’s power, expressed in kilovolt-amperes (kVA). In this article, we explain step by step how to carry out the calculation, which factors to consider, and how to apply a safety margin.

Key Factors to Determine a Generator’s Power

Before going into formulas, it is essential to understand the elements that directly influence the kVA calculation for a generator. The main ones include:

  • Type of electrical consumption: it is not the same to power office equipment as industrial machinery.
  • Intended use: whether the generator will serve as the main power source or as backup.
  • Number and type of electrical devices connected: each appliance has different power requirements.
  • Starting conditions: some equipment requires start-up peaks much higher than their constant consumption.
  • Load sequence: in certain facilities, it may be advisable to prioritise loads by connecting them in stages.

By analysing these factors, you can calculate the power of a generator with greater accuracy.

Difference Between kVA and kW in a Generator

A common mistake when calculating the power of a generator is confusing kVA (kilovolt-amperes) with kW (kilowatts).

  • kVA expresses the apparent power of the generator.
  • kW indicates the actual power consumed by the connected electrical devices.

The relationship between these values is defined by the power factor (cos φ). In most installations, it is common to use a factor of 0.8, meaning that a 100 kVA generator can deliver around 80 kW of useful power.
It is also important to note that apparent powers cannot simply be added together, as each load may operate with a different power factor. Instead, the real powers in kW must be added first and then converted into kVA.
This distinction is typical of alternating current circuits. In direct current, the power factor is 1, and the real and apparent powers coincide.
Professional analysing electrical consumption on screen and measurement tools (kW and kVA).

How to Calculate Power Based on Electrical Consumption

To calculate generator kVA, the starting point is the total power of all the electrical devices to be connected. This information can be found on each device’s nameplate or in its manual.
The basic procedure is:

  • 1. Add up the power ratings in kW of all the equipment.
  • 2. Apply usage or simultaneity factors, if necessary, to reflect a realistic scenario.
  • 3. Convert to kVA using the formula: kVA = kW / power factor
  • 4. Round up to the next value to ensure the generator does not operate at 100% of its capacity.

In this way, you can calculate the required generator kVA reliably and safely.

The Importance of Power Factor in kVA Calculation

The power factor is essential to convert kW into kVA. As mentioned, the usual reference value is 0.8, but it may vary depending on the type of load:

  • With electric motors, the power factor may be lower.
  • With modern electronic devices, it may approach 1.

Failing to account for this can lead to errors in sizing and selecting an undersized generator. It is always advisable to confirm this value with a specialist before choosing the equipment.
Technician checking load parameters on a tablet to calculate the kVA required for a generator set.

Considerations on Start-Up Peaks and Constant Power

Many electrical devices, particularly motors, pumps, and HVAC systems, generate start-up peaks when switched on. These peaks can be two to three times higher than their rated power.

For example, a motor with a rated power of 35 kW may require more than 70 kVA at start-up.
There are two common ways to compensate for these peaks:

  • Oversizing the generator’s alternator.
  • Incorporating frequency converters or other auxiliary equipment to soften the initial demand.

How to Apply a Safety Margin When Choosing a Generator

Once the required kVA has been calculated, it is advisable to apply a safety margin. This prevents the generator from always working at its limit, extends its service life, and reduces fuel consumption.

One of the most important aspects is knowing how to calculate the kVA of a generator to ensure it will meet all your energy needs.

In general, a margin of 20–25% above the initial calculation is recommended. For example, if the result is 100 kVA, the most appropriate choice would be a 120–125 kVA generator.

Practical Example of kVA Calculation for Different Loads

Let’s suppose a facility requires a generator with the following loads:

  • Lighting and office equipment: 15 kW
  • Air conditioning: 20 kW
  • Electric motors: 30 kW
  • 1. Sum of real power: P=15+20+30=65 kW
  • 2. Apply the power factor (0.8): S=P/cosϕ=65/0,8=81,25 kVA
  • 3. Consider start-up peaks: this value may rise to around 100 kVA.
  • 4. Apply a safety margin (+25%): 100×1,25=125 kVA

In this case, the correct option would be a 125 kVA generator, ensuring it can cover both constant power and start-up peaks without compromising performance.
Technician inspecting industrial machinery and recording consumption.

Conclusion

Understanding how to calculate the kVA of a generator is essential to choose the right equipment and avoid supply issues. Remember:

  • Differentiate between kW and kVA.
  • Always consider the power factor.
  • Account for start-up peaks, not just constant power.
  • Always apply a safety margin.

Correct sizing guarantees that the generator’s power matches the real needs of the installation, optimising performance and ensuring reliability.

Understanding how to calculate the kVA of a generator is essential to choose the right equipment and avoid supply issues.

At Genesal Energy, we specialise in the correct dimensioning of generator sets and in designing tailor-made solutions for each client. If you need advice on how to calculate kVA for purchasing a generator, our technical team can help you find the best option.