Auctions are designed to lower Ukraine’s ‘green tariffs’, among the world’s highest. Last year renewable power sources provided 2% of the nation’s electricity, but accounted for 8% of the nation’s power bill, according to Olga Buslavets, director of energy markets for the Energy and Coal Industry Ministry. Reviewing solar and wind projects under way, she predicted at a Kyiv round table that the nation’s installed renewable energy capacity will increase by 50% this year, to three gigawatts. In Ukraine’s electricity pie, nuclear supplies 53%, coal, gas and oil power plant supply 37%, and largely scale hydro dams – 7%.