FlexiDAO helps energy retailers enhance their green energy offerings by providing real-time traceability and certification of origin for renewable energy. Corporate demand for customized, transparent green energy contracts is on the rise as organizations wish to fulfill their CSR commitments. Retailers cannot meet these requirements as certification mechanisms are still too limited. Based on blockchains as real-time digital notaries, the software labels the provenance of the electricity and automatically matches it to customers’ consumption. FlexiDAO allows consumers to select and track how, when and where their electricity is produced. It supports companies like E.ON with meeting their CRS targets and offers residential customers offers residential consumers the choice to get time certified.