A bold report is presented by Thure Traber, Hans-Josef Fell and Sophie Marquitan at Energy Watch Group. It says that a 100% renewable power system for Germany can undercut fossil power within this decade. The authors look at the full cost of fossil power, including subsidies. Importantly, they explain how unit costs will rise further, as demand declines, due to the decreasing utilisation of its expensive infrastructure. Meanwhile, total system costs for solar, wind and storage keep getting cheaper. E-mobility too. Even without adding the costs of environmental damage from fossil fuels and nuclear – always hard to pin down – the numbers favour renewables. So if 100% renewables for all energy sectors – heat and electricity for industry, households, commerce and mobility – can make economic sense before 2030, that should become the over-riding policy target, say the authors. Coal and gas prices are at record highs this year and may drop back, but the fundamental trends will remain. 100% renewables will reduce energy costs within policy timeframes. Their modelling includes an optimal full-supply clean energy mix of 18 generation and conversion technologies and storage for given costs and potentials.
Energy Post 28th Oct 2021 read more »