German solar industry warns grid tariff reform could hit rooftop PV economics

The Bundesnetzagentur says the tariff system needs to change for a power system built around renewables, decentralized generation, and electrified demand. The solar industry argues that shifting more costs into fixed charges weakens the payoff from rooftop PV and does not sufficiently reward home batteries or flexible demand. The policy debate matters because Germany’s distributed solar growth depends heavily on household economics and clear incentives for self-consumption plus storage.