A total of 1.21 bln green power certificates have been issued in Nov. Among them, 650 mln certificates were issued for wind power, accounting for 53.93% of the total; 205 mln for solar power, 17.01%; 246 mln for hydropower, 20.45%; 103 mln for biomass power, 8.55%; and other renewables 820,000, 0.07%, the NEA data showed.