# Residential solar battery storage economics > Live situation record from CLSTR: https://clstr.news/situations/residential-solar-battery-storage-economics > Updated: 2026-10-03T10:46:00.000Z. Sources: 6. Developments: 2. The economic viability of residential solar battery storage is subject to varying regional factors and market strategies. In France, the profitability of domestic storage is under scrutiny because manufacturers may be using electricity price simulations that are significantly higher than actual regulated rates. While manufacturers often claim a return on investment within five to seven years, current French rates suggest a payback period of fifteen to twenty-one years, exacerbated by a drop in surplus electricity resale rates to 1.1 cents per kWh. In contrast, reports from the Netherlands highlight different financial models where large fixed home batteries are used to trade on the energy market. By charging during low-price periods and discharging during peaks, some systems have shown significant returns, such as a 22 kWh battery earning approximately 1,950 euros in 11 months. However, the long-term profitability of these market-trading strategies remains uncertain due to potential changes in energy market incentives scheduled for January 1, 2027. ## Timeline ### 2026-10-03: Home battery storage: capacity, power, and profitability Home battery effectiveness depends on balancing storage capacity (kWh) with discharge power (kW). Current market trading offers fast returns, though long-term viability after 2027 is a consideration. 2 sources. https://clstr.news/cluster/home-battery-storage-capacity-power-and-profitability ### 2026-09-22: Solar battery profitability and Indevolt's storage solutions While Indevolt aims to democratize solar storage with plug-and-play batteries, new calculations suggest domestic battery ROI in France may take 15 to 21 years due to current electricity tariffs. 4 sources. https://clstr.news/cluster/solar-battery-profitability-and-indevolts-storage-solutions --- Cite as: Residential solar battery storage economics. CLSTR, https://clstr.news/situations/residential-solar-battery-storage-economics