Guarantee of Origin

Guarantee of Origin

Guarantee of Origin (GoO) is the official standard to certify the renewable origin of electricity in Europe. While 30 countries in Europe form the AIB market, single countries are trading own national Guarantees of Origin (e.g. Poland). With a unique serial number, the avoidance of double counting is assured. With the information stated on the guarantee of origin (production date, location, technology, commissioning date and installed capacity of the power plant), specifications of every certificate can be guaranteed. Additionality can be improved by procuring special labels, comprising strict criteria for the production of green electricity, extra funds and social improvements in the surrounding area. Unbundled from the physical electricity, one guarantee of origin always represents the injection of on MWh of green electricity into the grid.

  • Renewable Electricity
  • Voluntary market
  • Europe


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

TÜV NORD: German ecolabel promoting energy from new power plants.

TÜV SÜD – EE01: German ecolabel that promotes the use of new power plants. Supports new technologies and invests in new projects.

OK POWER: German ecolabel from the Hamburg Institute to promote new power plants. Supports the expansion of and investment in renewable power projects.

Naturemade Star: Swiss ecolabel for ecological improvements. Plants receive certification through Association for Environmentally Sound Energy (VUE). Supported by WWF and Konsumentenforum Schweiz.

EKOenergy: EACs fulfil stricter environmental criteria. Simultaneously allows fundraising for RE projects in developing countries.

Bra Miljöval: Swedish ecolabel established in 2002 through Svenska Naturskyddsföreningen (The Swedish Society for Nature Conservation). Translation “Good Environmental Choice”. Enforces environmental protection through generating plants.