Paris-based investment firm RGreen Invest has reached a €900 million final close for Infragreen V, the fifth equity vintage of its flagship energy transition infrastructure fund designed to mobilize institutional capital for Europe’s clean energy expansion.

The fund is part of a growing class of sustainable finance instruments aimed at accelerating the transition toward low-carbon energy systems by channeling private investment into renewable infrastructure, energy storage and electrification projects.

Launched in summer 2023, Infragreen V initially targeted a fundraising range of €800 million to €1 billion. The final close places the fund firmly within that range and signals strong investor confidence in climate-aligned infrastructure investments despite increasingly competitive fundraising conditions across global capital markets.

For RGreen Invest, the successful close represents both a continuation of its long-standing energy transition strategy and an expansion of its ability to support projects critical to Europe’s decarbonization goals.

The fund also highlights the growing role that private capital and institutional investors are playing in financing the infrastructure required to meet global climate targets.

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Growing Demand for Climate Investment Funds

The closing of Infragreen V reflects the broader momentum within sustainable finance markets, where investment vehicles dedicated to climate solutions have attracted significant capital in recent years.

Across Europe and globally, investors are increasingly allocating capital toward funds that combine long-term financial returns with measurable environmental impact. Renewable energy infrastructure, in particular, has emerged as a preferred asset class due to its stable revenue profiles and long-term growth prospects.

Institutional investors such as pension funds, sovereign wealth funds and insurance companies have become key backers of these investment vehicles. Their participation reflects the growing recognition that the energy transition represents one of the largest infrastructure investment opportunities of the coming decades.

Analysts estimate that trillions of euros will be required globally to expand renewable energy capacity, modernize electricity grids and deploy low-carbon technologies. Investment funds such as Infragreen V are designed to help bridge this financing gap by mobilizing private capital at scale.

Expansion Compared With Previous Fund

The latest fund represents a significant step forward for RGreen Invest’s investment platform.

Its predecessor, Infragreen IV, closed in June 2021 with €670 million, exceeding its €500 million target at the time. With nearly 35 percent more capital raised, the new fund demonstrates increasing investor appetite for infrastructure investments aligned with the energy transition.

The expansion also reflects the growing scale of capital required to support renewable energy development in Europe. As countries across the region work toward net-zero emissions targets, new investment vehicles are emerging to finance wind farms, solar parks, battery storage facilities and electrification projects.

Funds operating in the mid-market segment play an especially important role, as they are able to support projects that may be too small for large global infrastructure investors but are nonetheless critical to the energy transition.

By focusing on these opportunities, RGreen Invest aims to accelerate the development of renewable infrastructure across Europe while generating long-term value for investors.

Focus on Renewable Energy, Storage and Electrification

Infragreen V will primarily focus on mid-market infrastructure investments that contribute to Europe’s decarbonization and energy security goals.

The fund will allocate capital across several core sectors of the energy transition, including:

• Renewable energy generation, particularly solar and wind power
• Energy storage systems, which help balance intermittent renewable energy supply
• Electrification infrastructure, enabling industries and transportation systems to move away from fossil fuels
• Renewable gas and biomethane production, providing low-carbon alternatives to conventional natural gas

The strategy reflects the increasing diversification of energy transition investments beyond traditional renewable power generation.

Energy storage technologies, for example, are becoming essential for maintaining grid stability as the share of renewable electricity increases. Similarly, electrification of industrial processes and transportation networks is emerging as a major driver of future energy demand.

By investing across multiple sectors, the fund aims to support the development of an integrated clean energy ecosystem capable of meeting Europe’s long-term climate objectives.

Strategic Focus on Central and Eastern Europe

A key geographic focus of the fund is Central and Eastern Europe, where investment needs remain particularly significant.

Many countries in the region continue to rely heavily on fossil fuels for electricity generation and industrial energy consumption. As governments seek to modernize their energy systems and align with European climate targets, substantial investment is required to develop renewable energy infrastructure.

RGreen Invest believes these markets offer strong growth opportunities as governments introduce policies designed to encourage clean energy investment and reduce dependence on imported fossil fuels.

Investment in renewable infrastructure also supports economic development by creating new jobs, improving energy security and reducing long-term energy costs for businesses and households.

Fund Structured Under EU Sustainable Finance Regulations

Infragreen V is structured within Europe’s sustainable finance regulatory framework and carries the Greenfin label, which is awarded to investment funds dedicated to environmental projects.

The fund is also classified as an Article 9 fund under the European Union’s Sustainable Finance Disclosure Regulation (SFDR).

Article 9 represents the highest level of sustainability classification within the EU regulatory framework. Funds in this category must demonstrate that their investments pursue a clear environmental objective and deliver measurable sustainability outcomes.

In addition to these regulatory classifications, the fund introduces a value-sharing mechanism linked directly to climate performance targets.

This structure aligns investor returns with environmental outcomes, ensuring that financial performance remains closely connected to the success of the fund’s sustainability objectives.

The adoption of such mechanisms reflects the broader evolution of sustainable finance markets, where investors are increasingly demanding greater transparency, accountability and measurable climate impact from investment vehicles.

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Challenging Fundraising Environment

Despite the successful close, RGreen Invest acknowledged that the fundraising process took longer than expected.

Stéphanie Bégué, managing partner at RGreen Invest, said the firm encountered strong market headwinds during the fundraising cycle.

Infrastructure fundraising has become increasingly competitive as larger global asset managers expand into the energy transition sector.

According to Infrastructure Investor’s 2025 fundraising report, the average fundraising cycle for infrastructure funds has now extended to roughly two years, reflecting heightened competition for investor commitments and more cautious capital allocation decisions.

Bégué explained that historically, Europe’s energy transition investment landscape had been dominated by mid-sized asset managers.

However, the entry of large global investment firms into the sector has significantly increased competition for capital.

“It was hard to fight against huge generalist funds or big funds,” Bégué said. “But in the end we’ve done well.”

Strong Support from Institutional Investors

Despite these challenges, the fund received strong support from both existing and new investors.

According to Bégué, the firm achieved an 80 percent re-up rate from investors in the previous fund, demonstrating continued confidence in RGreen Invest’s investment strategy and track record.

At the same time, the new fund saw significant expansion of its investor base, with around 50 percent of limited partners participating in an RGreen Invest fund for the first time.

Investors include a diverse mix of French and international institutional investors such as:

• The European Investment Fund (EIF)
• The French Pension Reserve Fund
• Several major insurance companies
• Other European and international institutional investors

Between 30 and 40 percent of the fund’s investors originate from outside France, highlighting the global appeal of Europe’s energy transition investment opportunities.

The participation of large institutional investors also reflects a growing trend in sustainable finance, where pension funds and insurers increasingly allocate capital toward climate-aligned infrastructure assets.

Early Portfolio Investments

The fund has already begun deploying capital into several energy transition projects across Europe.

According to RGreen Invest, approximately 70 percent of the fund’s capital has already been invested, with the remaining capital expected to be allocated by the end of the year.

Among the early investments in the portfolio are:

• NW Storm, a European energy storage platform
• Renalfa IPP, an independent renewable power producer and developer operating in Central and Eastern Europe
• Belenergia, an Italian biomethane producer focused on renewable gas infrastructure

These investments illustrate the fund’s diversified approach to the energy transition, supporting both electricity generation and renewable gas production.

By investing in a variety of technologies and markets, the fund aims to build a balanced portfolio capable of delivering both financial returns and environmental impact.

Long-Term Investment Strategy

Like most infrastructure investment vehicles, Infragreen V operates with a long-term investment horizon.

The fund has a 10-year lifecycle and targets double-digit returns, reflecting the stable cash flows often associated with renewable energy infrastructure.

Renewable power projects typically benefit from long-term energy contracts or regulated pricing frameworks, which can provide predictable revenue streams for investors.

This stability has made renewable infrastructure particularly attractive to institutional investors seeking long-duration assets capable of matching long-term liabilities.

RGreen Invest currently manages approximately €3.4 billion in assets, positioning the firm as an established participant in Europe’s sustainable infrastructure investment landscape.

Energy Security and Europe’s Strategic Priorities

The growing importance of energy transition investments has also been shaped by geopolitical developments.

Recent disruptions in global energy markets have prompted European governments to accelerate efforts to expand domestic renewable energy capacity and reduce dependence on imported fossil fuels.

Nicolas Rochon, founder and CEO of RGreen Invest, said the transition toward low-carbon infrastructure is now central to Europe’s economic and strategic priorities.

“Implementing Europe’s energy transition at speed and to the required levels of capacity has become one of Europe’s defining challenges,” Rochon said.

“In this context of geopolitical tensions and rapidly evolving digital systems, large-scale investment in competitive infrastructure is essential to strengthening Europe’s energy sovereignty.”

According to Rochon, funds such as Infragreen V are helping mobilize the scale of capital required to build the infrastructure needed for a cleaner and more resilient energy system.

“With Infragreen V, we are helping accelerate that effort by developing infrastructure at the scale required,” he said.

Outlook: Sustainable Finance Continues to Expand

The closing of Infragreen V reflects the growing importance of sustainable finance instruments in supporting the global energy transition.

Governments across Europe have established ambitious climate targets, but achieving those goals will require substantial private sector investment in renewable energy infrastructure and related technologies.

Investment funds dedicated to climate infrastructure are therefore expected to play an increasingly important role in mobilizing capital and accelerating project development.

Despite a more competitive fundraising environment, investor demand for energy transition opportunities remains strong.

As renewable energy markets continue to expand and regulatory frameworks strengthen, sustainable infrastructure funds such as Infragreen V are likely to remain central to Europe’s strategy for achieving a low-carbon future.

For RGreen Invest, the successful close of the fund represents not only a major fundraising milestone but also a platform for continued investment in the infrastructure that will shape Europe’s clean energy economy in the years ahead.

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Photo Source: Google

By: Rosemary Wambui

16th March 2026