Climate Impact Investing for Institutional Investors
Energy Transition Infrastructure Debt for Institutional Investors
Project finance solutions for energy efficiency to decarbonise European buildings and industry – the underfunded pillar of the energy transition
Tailor-made financing solutions for energy efficiency and self-consumption PV infrastructure.
Europe's Pure-Play Energy Efficiency Infrastructure Specialist
Solas Capital is the European investment specialist dedicated exclusively to energy efficiency and behind-the-meter projects. We provide institutional investors access to the most underfunded segment of the energy transition – building and industrial decarbonisation – through structured project finance solutions which are insulated from electricity market price volatility.
Our mission is to channel capital to this underfunded area to achieve positive climate impact by reducing energy demand in buildings, industry and public infrastructure through retrofits and technical upgrades.
40% of all energy within the EU is consumed in buildings
Reducing the energy consumption within buildings lowers CO2 emissions and strengthens energy security. Without energy efficiency investment we cannot reach our climate goals. Contact us to discuss in more detail and how we can help.
Why Invest in Energy Efficiency?
At Solas Capital, we understand both the funding needs of energy efficiency and self-consumption solar projects and the requirements of institutional investors, enabling us to bridge the funding gap between investors and projects.
Through our expertise and network, we support institutional investors in achieving fixed income-type returns and positive climate impact while strengthening Europe’s energy security through investments in building and industrial decarbonisation assets.
Impact of our Investment Strategy
Since inception of the strategy in Feb. 2022 (data per Dec. 2025)
Impact of our Investment Strategy
CO2 emissions reduction
Energy security
Growth and productivity
Decrease in energy poverty
New job creation
Health improvements
CASE STUDIES
Award-Winning Retrofit: Transforming Slovenia's Public Buildings
- Energy Savings: 934,500 kWh p.a.
- Emission Reduction: 489,900 kg CO2 p.a.
- Energy Cost Savings: 280,800 € p.a.
Resalta, a Slovenian energy service company, used financing provided by the Solas Sustainable Energy Fund to implement a deep building retrofit in a primary school and health center in Slovenia, including roof and facade insulation, new windows and doors, renovation of heating system, LED lighting, HVAC and thermostatic valves). The customers pay a monthly fee throughout the project tenor for the services and energy cost reduction. At the end of the contract, the benefits to the entire savings are transferred to the public entity.
CASE STUDIES
Heating Optimisation of 19 Story Apartment Building in Frankfurt
- Energy Savings: 250,000 kWh p.a.
- Emission Reduction: 59,700 kg CO2 p.a.
- Energy Cost Savings: 36,700 € p.a.
Paul Tech AG installs software-operated hydraulic balancing systems in the water and heating systems in multi-family residential buildings in Germany.
The installation in Frankfurt resulted in an increase to Energy Efficiency Class D from F.
CASE STUDIES
Rooftop PV Installation on Dublin Warehouse
- Energy Produced: 45,600 kWh p.a.
- Emission Reduction: 8,600 kg CO2 p.a.
- Energy Cost Savings: 5,800€
Urban Volt installed self-consumption solar PV and LED lights and entered a contract with an industrial energy consumer, who pays a fixed monthly service payment throughout the lifetime of the contract. The energy consumer had zero upfront expense for the project installation.
Our Team Has Proven Experience
Our team of motivated and passionate energy experts has proven experience in structuring tailor-made financing solutions. The company is owned by management and team members, aligning interests closely with our clients. We have a relationship-based culture which fosters open communication and innovative thinking.
Our Team Has Proven Experience
The team has proven experience in structuring tailor-made financing solutions and gained recognition for its development of a dedicated funding facility for innovative companies in the energy services sector. We are motivated and passionate energy experts, who have extensive experience in sustainable and impact investing. We have a relationship-based culture which fosters open communication and innovative thinking.
News and Insights
Zurich, 11th of February 2026 – Today in Luxembourg, Solas Capital AG has signed a €60
