Commerzbank has signed a power purchase agreement (PPA) with Mainova to source electricity from regional run-of-river hydropower plants.
Under the agreement, effective Jan. 1, 2026, the bank will obtain more than half of its sustainable electricity supply from Mainova for two years. The electricity will come from hydropower facilities in Frankfurt-Griesheim and Frankfurt-Eddersheim, with Commerzbank taking the full available production capacity of both plants.
The run-of-river facilities generate electricity using the natural flow of the Main River at sites in Frankfurt. The companies said the arrangement provides a regional and climate-focused source of power.
Sustainability and climate protection are part of Commerzbank’s corporate strategy. The bank said sourcing locally generated hydropower aligns with its environmental goals.
“This way, we consume a large part of the electricity that is produced directly at our corporate location. Together with our long-standing partner Mainova, we are consistently advancing our Net-Zero strategy and further reducing our ecological footprint,” said Sabine Mlnarsky, a member of the Commerzbank Board responsible for areas including organization and security.
Mainova said the agreement continues its long-term energy partnership with the bank.
“As an energy partner, we have reliably accompanied Commerzbank for many years. With the new run-of-river PPA, we are continuing this path consistently: regionally, sustainably, and in partnership. The supply of electricity from Frankfurt hydropower represents a forward-looking collaboration that combines ecological responsibility and economic stability,” said Mainova board member Martin Giehl.
The companies said the contract reflects a shared focus on climate-related energy sourcing and long-term cooperation.
