Home battery — does it pay off as net-metering phases out?
Home battery (5-15 kWh) becomes economic as net-metering phases out + dynamic tariffs grow. We map the conditions.
A home battery (lithium-ion or LFP, typically 5-15 kWh) stores solar surplus for evening/night use. 2026 investment: €3,000-€8,000 incl. installation. Payback depends on: (1) feed-in remaining after net-metering phase-out; (2) dynamic contract (charge low, discharge high); (3) current day/night tariff gap. With 100% net-metering (until 2027) home batteries RARELY pay off — all surplus is netted 1-for-1. After 2027 phase-out, more profitable. Risk: fire safety (quality brand + certified installer), warranty 5-10 years common. No ISDE for consumer home batteries in 2026; SMEs get MIA/Vamil depreciation.