Stadtwerke Münster has supported various energy efficiency projects with subsidies from its green electricity-certified Münster:natürlich tariff.

Andheri Hilfe Bonn has installed over 1,500 solar home systems in Bangladesh.

With the Aktiv-Stadthaus in the center of Frankfurt, Mainova AG has promoted a role model for energy-efficient living. ABG FRANKFURT HOLDING,

Stadtwerke Heidelberg offers homeowners a package solution with a PV system including their own power consumption, maintenance service and electricity tariff via 'heidelberg ENERGIEDACH'.

Stadtwerke Konstanz implements innovative tenant electricity model that allows tenants to directly consume locally generated solar power and thus save on energy costs.

Energiedienst AG expands e-car sharing with Grüner Strom-certified green electricity.