Power system flexibility need induced by wind and solar power intermittency on time scales of 1–14 days

摘要: Abstract This article describes a method to assess the needed production flexibility adapt power system from variable renewable energy sources such as wind and photovoltaics over time horizons of 1–14 days. Load data German is used quantify need in terms storage requirement due higher shares (20–80%). It found that with an 80% share system, average flexible decreases by 31 GW (59%) while peak only 3 GW (4%). In energy, two week horizon increases 2.6 TWh, which 14% load per day. If European plans for 100 GW North Sea region are realised, this would mean increase 2.2 TWh horizon.