Several gigawatts of wind power capacity from old turbines losing support after 2020 could go offline and delay Germany’s energy transition unless wholesale power prices recover and framework conditions improve, a study by consultant Deutsche Windguard warns.

Feed-in tariff support under the then 20-year-old Renewable Energies Act (EEG) will end for some 6,000 turbines across the country with a combined capacity of 4.5GW on 31 December, 2020. About another 1,600 wind turbines will face the same situation each year through 2026, the study points out.