We analyze optimal infrastructure investments for the integration of variable renewables in the German electricity system. Using a combined dispatch, transmission, and investment model, we compare four scenarios with different investment options, including gas-fired power plants, pumped hydro storage and transmission lines. In a reference scenario of the year 2024, geographically optimized investments ...
We analyze regulatory regimes for electricity transmission investment in the context of transformation of the power system towards renewable energy. We study three distinctive developments of the generation mix with different implications on network congestion, which may be either of temporary or permanent nature. We address the relative performance of a combined merchant-regulatory price-cap mechanism, ...