The cost of electricity from new solar and wind plants is increasingly undercutting the operating costs alone of existing coal‑fired power plants and strengthening the case for their early retirement, a newly released International Renewable Energy Agency (Irena) report confirms. Published on June 22, the ‘Renewable Power Generation Costs 2020’ report states that over 800 GW of existing coal capacity already costs more than new solar photovoltaic (PV) or onshore wind projects commissioned in 2021.