Westbridge structures long-term green power supply agreement for the entire German portfolio of CA Immobilien Anlagen AG
Westbridge Advisory (Westbridge), one of the leading energy and sustainability consultants for the real estate industry in Europe, has designed, structured and implemented a long-term Power Purchase Agreement (PPA) for CA Immobilien Anlagen AG (CA Immo), which specializes in high-quality, inner-city Class A office buildings, for the sustainable supply of electricity to its entire German real estate portfolio.
The electricity supply agreement started on January 1, 2026 and runs for three years until the end of 2028, covering the entire electricity requirements of CA Immo's German portfolio worth around EUR 2.6 billion. This corresponds to around 10.7 gigawatt hours of electricity per year for 45 delivery points in the office segment.
The procurement model developed combines a long-term PPA share with a spot market component. Around 80 percent of the electricity comes from renewable generation at a German hydropower plant and is procured via the PPA. The remaining 20 percent is procured as certified green electricity on the spot market. The hybrid structure combines long-term price stability with flexibility in ongoing operations.
Simon Szpyrka, Managing Director of Westbridge, says: "This project shows how sustainable power supply can be implemented for large real estate portfolios today. With the structured PPA model, we are creating an economically stable, transparent and future-proof solution for CA Immo that effectively combines decarbonization and security of supply."
Maximilian Rogler, Team Lead Strategic Projects & Environmental Asset Management CA Immo Germany, adds: "This three-year fixed contract gives us and our tenants greater independence from the volatile electricity market and therefore greater price stability. In addition, this transparent and largely local procurement of electricity from renewable energies supports both our own path to climate neutrality and the climate goals of our tenants."
Building on the use of renewable energies already in place since 2020, the new contract model strengthens security of supply, improves cost predictability and reduces dependence on volatile electricity markets. At the same time, the PPA helps to ensure that more electricity from renewable sources flows directly into the portfolio, thereby supporting the energy transition in Germany.
Westbridge was responsible for the entire project from start to finish: from analyzing the consumption and portfolio data to developing the procurement and risk model, tendering, contract negotiation and implementation. The focus was on an ESG-compliant design, the integration of local renewable generation and a long-term scalable solution for the portfolio.
The electricity model developed by Westbridge is designed in such a way that it can be expanded in the future and transferred to other properties or markets.