List of the 375 largest renewable energy investors in Europe [2025]

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List of 10 renewable energy investors in Europe

Renewable energy has a significant value regarding the planet’s future and the renunciation of the climate crisis. Based on this cognizance, investment firms are becoming increasingly aware of their responsibility and, therefore, actively taking part in the transition to a sustainable future through emission-free energy generation. Striving to add renewable energy projects to their portfolio and achieve a high degree of diversification, investment firms are interested in different types of renewable energy production. Therefore, investors rely on classics such as onshore wind farms, photovoltaic solar parks and hydropower but also invest in less common renewable energy projects such as hydrogen, biomass and offshore wind parks. In addition, energy storage is not too negligible, which is why some firms are also active in this renewable sector. Based on their investments, not only to current energy supply be increasingly converted to renewable energy, but also the process of improvement and further development can be driven forward. In the following, ten European investors will be presented. They are characterized by their active involvement in the renewable energy sector.

1) Nadara (Edinburgh, United Kingdom)

The Edinburgh-based investment firm was founded in 2017 and exhibits today, only five years after its founding, already a portfolio of over 2.5 GW installed capacity through renewable energy projects. Nadara focuses on onshore wind parks across Europe and currently operates over 130 of them in six different countries. By being named the Sector Leader by GRESB in the context of Sustainability, the pan-European renewable energy business stands for its mission to secure the planet and its people by generating renewable energy and achieving sustainable growth. Therefore, their approach is not only to invest in renewable projects but also to ensure sustainability in the implementation and operation of these.

Update: After the merger of Ventient Energy and Renantis, the firm is rebranded to Nadara.

2) Greencoat UK Wind (London, United Kingdom)

Greencoat UK Wind deliberately focuses on wind parks across the United Kingdom by acquiring onshore and offshore wind farms. As the investment firm is managed by Greencoat Capital LLP, the investments are evaluated by an experienced team of senior executives to provide shareholders with a sustainable and transparent income stream. Greencoat Capital LLP, which evolved into one of Europe’s largest dedicated managers, has shifted its focus with Greencoat UK Wind to the renewable wind energy sector after realizing the potential in this branch. In the investment context, Greencoat UK Wind operates according to clear guidelines that have been established internally and thus provide clear conditions for, among others, capacity and acquisition price. In Q3 of 2023, Greencoat UK Wind surpassed a milestone with a wind capacity exceeding 2GW.

3) Aquila Capital (Hamburg, Germany)

The investment firm, with its headquarters in Hamburg, can exhibit a diverse portfolio of renewable energy projects. Since its founding in 2001, Aquila Capital has been able to acquire an impressive portfolio. It comprises over 550 wind turbines (operating in onshore and offshore wind parks), 119 solar farms and almost 150 hydropower plants. While being one of the first alternative investment firms, the portfolio has reached a total capacity of over 8 GW through investments made over the last few years. Today, Aquila Capital is considered a leading investment manager and continues to pursue its mission of reducing carbon emissions by fostering innovation and driving the digitalization of the energy transition forward. Battery storage is an increasingly important asset in the renewable energy industry – the German investor sees this potential and has acquired a 220MW pipeline of battery storage projects from the renewable energy company Gransolar in 2023.

4) EWE Erneuerbare Energien (Oldenburg, Germany)

With a portfolio capacity of more than 555 MW, EWE Erneuerbare Energien is considered a meaningful investor in the renewable energy sector. Their 30 years of experience in the new energy sector show that Oldenburg-based investment firms are striving to make a positive and lasting change in the energy supply. With competence and conviction in renewable energy, EWE Erneuerbare Energien does not only invest in onshore and offshore wind parks but also photovoltaic solar farms and biomass.

Due to their commitment to energy supply transitions, German Investors are increasingly involved in renewable energy projects and relying on innovative technology. Therefore, they ensure maximum efficiency and consider themselves reliable partners for developers, entrepreneurs, municipalities, and citizens.

5) Green Investment Group (Edinburgh, United Kingdom)

By managing investments in renewable projects worldwide, Green Investment Group pursues the goal of expediting the green transition of the energy sector. Five years after being acquired by Macquire Group Limited, the Edinburgh-based investment firm has a diversified portfolio of onshore and offshore wind as well as solar parks. Furthermore, Green Investment Group is considered one of the world’s largest specialized green infrastructure investor and developer teams while striving to fulfill their mission to take action in the process of developing a greener economy.

6) ENGIE S.A. (Paris, France)

Engie S.A. was founded in 2008 in Paris and has been striving ever since for the world’s transition to a carbon-friendly future. By investing in renewable energy projects, the French Investment firm is furthering innovative solutions in the context of energy generation and, hence, converting the energy supply to a more sustainable way of implementation. The diversified portfolio of Engie S.A. exhibits various renewable energy projects, such as wind parks, solar farms, and geothermal energy, but also biomethane and biomass, as well as hydrogen and hydroelectricity projects. While Engie S.A. is already the leader in the French wind energy sector, it is striving to become a pioneer in the branch of renewable technologies. The French energy giant has exceeded expectations and currently holds over 34GW of installed capacity through their diverse renewable energy assets.

7) Magnora ASA (Oslo, Norway)

With the regional focus on Northern Europe, the Oslo-based Investment firm is aiming to evolve the energy market to a sustainable way of implementation, particularly in the context of energy generation. Therefore, Magnora ASA is not only investing in the development of renewable energy projects but also in leading technology companies in order to achieve operational excellence. Being considered a leading royalty and license revenue company, the Norwegian investment firm is striving for the continuous improvement of internal processes.

8) CEE Group (Hamburg, Germany)

CEE Group is an active alternative asset manager with a focus on renewable energy. By providing a portfolio with a total capacity of 1,037 MW, the Hamburg-based investment firm aims to be one of the largest independent green power producers in Europe. By not only acquiring renewable energy projects but also managing the wind and solar farms marked by a high degree of digitalization and innovative tools, CEE Group ensures the entire value chain. With their experience of over 20 years in the field of real assets, the German investment firm is accepting their responsibility and taking part in the transition of the energy supply.

9) Bluefield Solar Income Fund (Guernsey, United Kingdom)

The portfolio of the Guernsey-based investment firm provides over 100 solar park assets, which is representable for their focus on utility-scale solar assets and portfolios. Based on their approach to maximise the renewable energy, Bluefield Solar Income Fund is currently extending their investments to onshore wind parks, hydropower projects, and energy storage. Nevertheless, the regional focus will remain in the United Kingdom while further fulfilling the obligation to contribute to a more sustainable future, which includes reduced carbon emissions.

10) RWE Renewables (Essen, Germany)

RWE Renewables is considered a leading investment firm in the global renewable energy sector. By continuously working on innovative technologies, the German subsidiary of RWE is striving to achieve its goal of being carbon-neutral by 2040. Therefore, RWE Renewables is centering the area of onshore and offshore wind parks as well as photovoltaic solar farms. As one of the largest electricity generators worldwide, the Essen-based investment firm is striving to convert to a more sustainable way of implementation by cutting conventional power plants and thereby reducing carbon emissions.

Update: RWE continues to enhance its renewables portfolio in Poland, marking the operational launch of its 20th onshore wind farm, Żnin. This has elevated its onshore wind capacity in Poland to over 540 MW.

Different types of green energy investors covered

Our list mainly includes three different types of renewable energy investors: asset- and investment-managers, utilities, and family offices. Asset managers are investing in the name of institutional investors and managing a renewables portfolio for their funds. That includes operating the portfolio, selling the energy through PPAs and on the free market, and acquiring new assets. Utilities are acquiring – and in some cases building on their own – renewable assets to ensure a CO2-neutral and cheap energy supply for their customers. Family offices – the investment firms of high net worth families – recently started to invest in renewables and also to acquire wind and solar parks.

Columns included in the list of the Renewable Energy Investors in Europe

• Company data (Company Name, Legal form, Country of origin)
• Contact details (City, Address, Postcode, URL, E-Mail, Phone, Management)
• Area of investment (Onshore Wind, Offshore Wind, Solar, Hydro, Tidal, Hydrogen projects, Geothermal, Energy storage, Biomass)
• Type of Investor (Asset-/Investmentmanager, Family Office, Utility, IPP)
• Special Focus (PPAs, Repowering)
• Further information (Regional Focus, Founding year, installed capacity in MW)

Picture Source: Karsten Würth