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Energy Transition Financing

Since 2015, our private credit expertise has delivered resilient debt investments to its investors, with attractive returns and tangible impact towards the climate. Its industrial financing solutions calibrated to meet project needs and investor expectations, have already financed solar, wind, biomethane, battery and energy efficiency projects in the middle market segment across Europe.

The team’s flagship strategy, Sustainable Infrastructure Debt (SID), was launched in 2015 and is now entering its third vintage.

In 2022, the strategy Energy Efficiency Financing (F2E) was launched to broaden the team’s financing solutions to include non-infrastructure energy transition.

 

F2E fund benefits from support from the European Union under the InvestEU Fund.

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Back to the expertise

The Energy Transition financing gap in Europe

The EU has set forth the Fit for 55 and RePowerEU agenda to quickly improve its sovereignty towards fossil fuels and achieve a just and sustainable energy transition by 2030. Among the EU’s ambition is to double its the renewable energy mix to 42.5% from the 2020 level of 22%.

Graph 2.2 En

Why invest in energy transition infrastructure debt?

Highly predictable cashflow

Infrastructure investments benefit from cash flow visibility thanks to the contractual nature of projects.

Stability across cycles

As energy consumption is non-discretionary for households and essential to a well-functioning economy, energy infrastructure benefits from long-term demand.

European regulatory tailwinds

Public policies across Europe are creating a strong and irreversible momentum in favour of energy transition.

Track record (as of June 2025):

+ 40
investments across 6 countries
0 loss
track record
+2 GW
capacity equivalent financed
+3,7m tCO2
emissions avoided

What we offer

  • 01 Investors protection
  • 02 Strategic and sustainable return
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Investors protection

Reflected in our zero-loss track record since 2015, resilience is derived from predictable cash flows, customized security packages, and substantial control as the majority lender, creating robust capital protection for our investors.

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Strategic and sustainable return

Our strong position within the energy transition ecosystem enables us to benefit from attractive deal flow and significant influence through our industrial partnerships. This positioning allows us to generate competitive returns while pursuing a long-term investment strategy.

Gas Separation Industry Or Eco Energy For Sustainable Energy Saving, Environmentally Friendly Industry, Low Carbon Emissions

100% energy transition impact

We ensure 100% of financed assets are energy transition assets, with a strong focus on greenfield projects that deliver significant additionality.

  • 03 100% energy transition impact

Your contacts for any topic related to the energy transition

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Estelle Merger-Lévis

Sales Director for Institutional clients

+33 (0)6 61 84 64 01

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Estelle Merger-Lévis joined Sienna IM in 2025 as Sales Director for Institutional Clients. She was previously Head of Sales and a member of the Executive Committee at Schelcher Prince Gestion and Arkea Investment Services. Estelle joined the Arkea Group in 2012 to lead the international development of Schelcher Prince Gestion and Federal Finance Gestion. Prior to that, she spent 15 years in investment banking, working on the trading floors of CA CIB and CDC in France and London. In 2006, she was appointed Head of Structured Products Sales for the BeNeLux region at Natixis CIB. Estelle is a graduate of ESTP Paris and holds a Master of Science from the University of Birmingham as well as a Master in International Finance from HEC.

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Raphaëlle Atlani

Investor Relations Officer

+33 (0) 1 53 76 99 70

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After working for 2y in the sales Team at Egamo, Raphaëlle joined Sienne Private Credit in October 2022. Raphaëlle graduated from IAE Aix en Provence (accreditation AMBA & EQUIS). She has a Master degree in Marketing & Brand Management.

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Laure Mahé

Investor Relations Officer

+33 (0) 1 53 76 99 91

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Laure joined Sienna Private Credit in December 2022 as an Institutional Client Relations Officer. She started her career at HSBC AM and then at Allianz Global Investors as a Tender Officer for both institutional and retail clients. In 2021, Laure joined CAPZA as Senior Product Manager for private debt and private equity funds. Laure is a graduate of Neoma Business School. 

 

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Philippe Garrel

Head of Energy Transition Funds, Private Credit

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Philippe joined Sienna Private Credit (formerly Acofi) in 2008 to develop the infrastructure financing business. He began his career in 1996 as a Project Manager at Schlumberger. In 1999, Philippe moved to the GDF-SUEZ group to develop the construction and operation of electrical infrastructure projects (Airbus 380 facility, Sanofi labs). He was then given responsibility for the INEO branches in Warsaw and Moscow. Philippe has an Engineering degree from Ecole Nationale Supérieure des Arts et Métiers, plus a Master’s in Banking and Financial Engineering.