Run-of-River Origin


OK POWER is a German ecolabel promoting energy from new power plants and is based on renewable energy documented with Guarantees of Origin. It promotes the use of new renewable power plants, the investment in them and contributions to the energy revolution. OK POWER is managed by the Hamburg Institut.

Buying Guarantees of Origin with this ecolabel guarantees that the renewable energy adheres to the ecolabel’s requirements.

Focus areas

Electricity products and providers eligible for OK POWER certification must meet the following criteria:

  • Electricity is generated from 100% renewable energy sources
  • Electricity is generated from plants that do not receive any governmental support
  • The electricity provider is not involved in nuclear or coal power plants

In addition the supplier commits to support new plants by purchasing either A) Guarantees of Origin from new plants or B) Initiating and operating new plants:

A)  Purchasing Guarantees of Origin from new plants

The supplier commits to procure at least 33% of the electricity from new power plants, where the following age limits apply:

  • Hydropower: 8 years
  • Wind power: 4 years
  • Photovoltaics: 5 years
  • Biomass: 4 years
  • Geothermal: 8 years

 B)  Initiating and operating new plants

The supplier needs to initiate construction of new renewable energy sources such as solar panels and wind turbines



Meet an environmental standard of your choice

Consume renewable energy meeting requirements of specific standards or ecolabels. Buy Guarantees of Origin from power plants that meet stricter environmental standards and are verified by an external auditor. Choose between national or international ecolabels and standards, document the age and type of the power plant, technology and unique operational focus, and raise funds for renewable energy projects.


International ecolabel for renewable electricity with strict criteria for environmental impact, and that directs funds to new renewable energy projects

Bra Miljöval

Swedish ecolabel with strict environmental criteria


German ecolabel for renewable electricity from new or upgraded power plants

TÜV Nord A75

A German ecolabel promoting energy from new power plants


German ecolabel for renewable electricity from new power plants, with a mix of technologies and fund allocation

Naturemade Star

Swiss ecolabel with strict environmental criteria

Green-e® Energy

Green-e is North America’s leading certification program for renewable energy.

Customise to fit your specific needs

Consume renewable energy with specific characteristics. ECOHZ provides access to a comprehensive portfolio of more than 200 power plants, located across five continents. This enables you to choose specific power plants with distinct characteristics, including choice of technology, location, age, size, and owner profile.