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Home battery — does it pay off as net-metering phases out?

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Home battery (5-15 kWh) becomes economic as net-metering phases out + dynamic tariffs grow. We map the conditions.

Reviewed by FFCheck-redactie · Last reviewed 2026-05-28

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.

Related

What is net-metering (saldering)Net-metering nets your fed-in solar power against your consumption. Until end of 2026 still at 100%. From 2027 it phases out — we map the sc…What is a dynamic energy contractA dynamic contract links your tariff to the hourly EPEX exchange price. Cheaper during surplus (much sun/wind), more expensive at peak. Not …Is home-battery provider safeHome-battery market is young + opaque. 6 checks between Tesla-Powerwall-level and risky private-label.

Sources

Updated: 2026-05-28

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