Green-e is a certification program for renewable energy managed by the Center for Resource Solutions (CRS).
EKOenergy, an internationally recognized quality mark for renewable energy, natural gas, heating and cooling, is a non-profit initiative consisting of more than 40 environmental organizations in 30 countries.
OK POWER is a German eco-label managed by the Hamburg Institute which aims to promote transparency and protect consumers by issuing labels to energy products.
GreenPower is an Australian renewable energy accreditation company whose accreditation is applicable to every state in Australia.
Grüner Strom Label (GSL), meaning “greener electricity” in German, was established and has been operated by seven non-governmental organizations since 1998.
Bra Miljöval is a Swedish ecolabel established in 2002 and managed by the Swedish Society for Nature Conservation (Svenska Naturskyddsföreningen).