Sustainability-driven investment manager Mirova has announced the second close of its flagship Mirova Energy Transition 6 (MET6) fund, securing €1.2 billion (approximately USD 1.4 billion) in investor commitments. The milestone underscores strong institutional confidence in climate-focused infrastructure at a time when global capital is shifting rapidly toward low-carbon energy systems. With a €2 billion fundraising target set for 2025, the Paris-based firm aims to channel new capital into renewable power, clean mobility, and grid resilience across OECD countries. But as the world races to decarbonize, the question looms: can scaled private capital keep pace with the urgency of the energy transition?

Building on a Decade of Energy Transition Investing

The MET6 fund represents the sixth generation of Mirova’s flagship strategy, launched in 2023 following the €1.6 billion close of its predecessor, Mirova Energy Transition 5 (MET5). The firm, a subsidiary of Natixis Investment Managers, has built a reputation for financing the backbone of clean energy infrastructure from greenfield projects and brownfield upgrades to corporate-scale renewable ventures. According to Mirova, MET6 continues that mission by targeting projects in solar PV, onshore wind, hydropower, energy storage, low-carbon transport, and energy efficiency. The firm has already deployed €960 million across 10 assets spanning multiple geographies, including independent power producers and large-scale renewable portfolios. These early investments provide a snapshot of how Mirova’s capital model bridges early-stage risk with institutional-grade infrastructure performance.

Capital Deployment at Scale: From Screening to Execution

The scale of Mirova’s deal flow reveals both the appetite for and the complexity of climate-aligned infrastructure. Over the past year, the MET6 team screened more than 300 potential investments, representing roughly €18 billion in equity and over 190 GW of installed renewable capacity. This rigorous pipeline management positions the fund to allocate capital efficiently while maintaining strong sustainability criteria across asset classes. By targeting both mature and emerging technologies, Mirova aims to blend financial stability with environmental impact, a dual priority increasingly demanded by institutional investors navigating uncertain markets. As the fund expands, Mirova plans to deepen its presence across OECD regions, aligning with national energy transition policies and supporting localized clean infrastructure buildouts.

Read more: Clean Energy Startup Arbor Secures $55 Million to Commercialize Zero-Emission Turbine Technology

Institutional Momentum Behind Green Infrastructure

The strong investor turnout reflects a growing conviction among global institutions that the energy transition has become both a financial and strategic imperative. Pension funds, insurers, and sovereign investors are allocating larger portions of their portfolios to renewable and resilient infrastructure, recognizing the sector’s ability to generate predictable, inflation-protected returns.

“The successful second close of MET6 marks a pivotal moment in our journey to accelerate the energy transition,” said Raphael Lance, Deputy General Manager and Global Head of Private Assets at Mirova. “Institutional investors continue to show strong appetite for energy transition infrastructure, drawn by its potential to deliver stable, long-term returns while aligning with global decarbonization goals. The asset class stands out for its resilience, depth, and capacity to generate predictable cash flows, especially in a volatile macroeconomic environment.”

Explore OneStop ESG Marketplace: Renewable Energy

Lance’s statement captures a broader shift in market sentiment from viewing sustainability as a niche allocation to seeing it as a pillar of long-term economic stability.

Strengthening Market Resilience Through Decarbonization

Mirova’s Energy Transition funds play an increasingly critical role in financing the infrastructure that underpins the net-zero economy. By blending private equity, project finance, and ESG screening methodologies, the firm offers investors exposure to projects that generate both measurable carbon reductions and steady financial performance. The MET6 portfolio’s diversity spanning renewables, grid storage, and clean transport also helps buffer investors from volatility in single sectors, a growing concern as energy prices fluctuate and policy frameworks evolve. In many ways, the fund illustrates how climate finance is maturing into a mainstream asset class capable of driving both impact and income.

Outlook: Scaling Climate Capital for the Decisive Decade

With nearly €1 billion already deployed and another €800 million targeted for closing, MET6 is poised to become one of Europe’s largest privately managed energy transition funds. Its continued expansion signals a deepening convergence between institutional capital and climate infrastructure, a relationship essential to meeting the Paris Agreement’s 1.5°C pathway. Mirova’s long-term ambition goes beyond financial returns. By mobilizing large-scale investment into renewables and low-carbon mobility, the firm aims to demonstrate that sustainable finance can deliver real-world energy transformation. As global markets navigate inflation, geopolitical tension, and energy insecurity, one thing is becoming clear: the energy transition is no longer just a moral or environmental goal, it’s a strategic investment frontier. For Mirova, the latest fund close marks not just a financial milestone, but a reaffirmation that the future of infrastructure is inseparable from the future of the planet.

Explore ESG Solutions on our marketplace - OneStop ESG Marketplace.

Keep abreast of the top ESG Events on OneStop ESG Events.

OneStop ESG Educate: Your go-to source for top ESG courses and training programs tailored to your needs.

Stay informed with the latest insights on OneStop ESG News.

Discover meaningful career opportunities on OneStop ESG Jobs.