Our commitment to sustainability

We firmly believe that embedding environmental, social and corporate governance (ESG) standards across our business operations and investment activities creates sustainable value for all of our stakeholders – from clients and their beneficiaries to employees, business partners and the communities in which we operate. Our investment focus on CO2 emissions savings is matched by our corporate efforts towards climate neutrality at the operational level. The following sections provide a summarised overview of what is set forth in more detail in our Sustainability Policy. For an overview of our achievements around sustainability, you can view our 2020 Sustainability Report.

2020 Sustainability Report

Sustainability Policy

Focus on CO2 savings

Our company was founded in 2009 with the mission to fight climate change by furthering the transition of the energy sector – a key driver of CO2 emissions and, consequently, global warming. Our longstanding commitment to this cause is based on the firm understanding that limiting the rise in global temperature to a minimum requires a significant reduction in CO2 emissions towards net-zero over the coming years. As a fund manager dedicated to investing in sustainable energy infrastructure, we direct institutional capital towards projects that help decarbonise energy production, increase energy efficiency and enable the utilisation of clean energy.

These are the three pillars of a successful energy transition and avoiding CO2 emissions through each of our transactions is an integral part of our investment strategy.

Investments by SUSI Partners funds enable the deployment and operation of technologies that provide alternatives to conventional energy sources – and no fund managed by us invests in coal-powered energy generation. We track the emissions avoided at asset and fund level and work together with South Pole to quantify the CO2 savings in accordance with the World Resources Institute’s Greenhouse Gas Protocol, as well as the recommendations by the Partnership for Carbon Accounting Financials.

Our investment focus on emissions savings is matched by our corporate efforts towards climate neutrality at the operational level. While we continuously look for ways to reduce our corporate footprint, we contribute to projects aimed at reducing greenhouse gas emissions to offset operational emissions we are unable to avoid.

2.9m tonnes of CO2 avoided
as of year-end 2020
18.5m tonnes of CO2 avoided
over technology lifetime (est.)

Supporting the SDGs

Due to our mission and investment focus, we specifically support the United Nations Sustainable Development Goals (SDGs) on affordable and clean energy; industry, innovation and infrastructure; and climate action.

At the same time, we work towards achieving the broader SDG ambitions through our business activities and operations. Based on an analysis of the 169 underlying targets, we are identifying those areas where we believe we can make a positive impact by 2030 and will map our progress against those as part of regular internal reviews and reportings.

Sustainable Investing

View our latest PRI transparency report >>

As a proud signatory of the UN-supported Principles for Responsible Investment (PRI), we view ESG analysis as a fundamental part of investment risk management and potential value creation across all our funds. We formally incorporate the PRI, SDGs and other factors into investment screening and due diligence. To this end, we have created a framework that is designed to review a specific set of responsible investing matters, assesses potential risk factors and provides transparency to clients.

We are implementing this framework throughout all our funds to ensure a consistent and transparent approach to ESG due diligence. In most cases, due diligence is based on standardised questionnaires and assessments, which have been developed by the investment team and ratified by the fund’s investment committee.

The ESG approach is systematically embedded across our investment and asset management processes. The assessment and identification of potential for improvement take place as soon as investment opportunities are identified using the criteria mentioned below. In practice, each project is thoroughly assessed through an initial due diligence analysis prior to investment. If ESG topics are highlighted during this process, risk mitigation procedures are included in the project documentation and specific risk indicators are identified for the implementation of continuous monitoring. In general, the methodology used in the ESG analysis process for investment opportunities is built around the following steps:

  • Verification of the eligibility of the project against the exclusions established by SUSI Partners for its various funds
  • ESG framing of the project in regulatory terms and needs for its development
  • Detailed analysis of ESG issues
  • Determination of ESG risks and key performance indicators
  • Identification of the ESG mitigation and monitoring strategy

Further details on SUSI Partners’ approach are set out in our sustainability policy.

Corporate Responsibility

Our firm-wide approach is based on a number of ESG factors guiding our efforts to build an organisation that is successful in the long term and generates sustainable value for our stakeholders:


  • Tracking of CO2 footprint and identifying reduction potential
  • Responsible use of resources such as energy and water
  • Waste management and recycling
  • Avoidance of single-use plastic and reduced consumption of paper
  • Support of environmental projects as part of CO2 compensation measures and corporate volunteering


  • Financial and health benefits to support employee wellbeing
  • Initiatives to foster diversity and inclusion
  • Training and development offering
  • Holistic performance management
  • Annual employee survey to gauge commitment and enablement
  • Support of community projects as part of CO2 compensation measures


  • Stakeholder engagement
  • Monitoring compliance with policies and guidelines
  • Business continuity planning
  • Open feedback culture and error handling procedure
  • Transparent documentation and reporting

Strategy & training

With support and oversight from the Board of Directors, our sustainability steering group – comprising our Co-CEOs as well as dedicated professionals – is leading firm-wide efforts to embed ESG standards and practices, continually reviewing and enhancing our framework and contributing to industry discourse and thought leadership on these matters.

As one of our core values, sustainability is also an integral part of our regular employee survey conducted annually. Results from the survey confirm that our employees care about ESG issues and place great value on working in an organisation that is committed to fighting climate change and contributes to global sustainability goals. In this context, we facilitate education and knowledge sharing on a number of ESG-related topics among our employees.