Home battery for every home

Net metering ends completely on 1 January 2027. Until 31 December 2026, all electricity you feed back is still offset against your consumption. After that it is not: you receive a feed-in tariff per kWh, which is much lower than what you pay for electricity. Note: you sometimes read online about a gradual phase-out until 2031. That was an earlier bill that did not pass. The scheme stops in one go.

Your energy supplier must pay you at least 50% of the bare supply tariff — that is the electricity rate without taxes. That floor is set in law until 2030 and ACM supervises it. Suppliers may offer more. In practice, electricity you use yourself will be worth about twice as much as electricity you feed back. That is exactly why storage becomes interesting.

Realistically that sits between €400 and €1,000 a year. The lower end is for optimising your own consumption only. The upper end comes with a dynamic energy contract, where the battery also trades on the energy market. What you achieve depends on your usage, whether you have solar panels, your contract type and your capacity. We do not make empty promises: in the free energy advice we calculate your situation with your annual usage.

For an average household with solar panels, payback is 7 to 11 years. The biggest variable is your energy contract: with a dynamic contract you often cut 2 to 4 years; with a fixed contract it can rise above 15 years. Because a battery lasts 10 to 15 years, the contract type often decides whether it pays off.

Not by default. During a power cut the inverter of your battery and solar panels switches off automatically. That is not a fault but a safety rule: it prevents voltage on the grid where technicians are working. If you do want backup power, you need a backup setup: an inverter with backup function, an automatic transfer switch and a backup box in the meter cupboard. Your home then temporarily forms its own island grid and switches within seconds. Usually such backup powers selected circuits — fridge, lighting, wifi — not the whole house. For our AlphaESS sets the backup box costs €1,230 incl. VAT extra, plus related meter-cupboard work; for Sigenergy it runs via a Sigen Gateway and we put the surcharge in your quote. Tell us at request if backup power matters to you, and we include it in the design straight away.

Often yes, but not always — and we say so honestly if it would deliver little in your case. A battery performs best from about 2,500 kWh annual usage, with solar panels and preferably a dynamic contract. With low usage, no panels and a fixed contract, payback is long. Your meter cupboard and installation space also matter. During free energy advice we look at your annual bill and situation, and “not right now” is also a valid outcome.

Yes. Since 7 May 2024 it is legally required to register every battery of 0.8 kW or more that can feed back with your grid operator via energieleveren.nl. That applies to fixed systems and plug-in batteries, with Liander, Enexis and Stedin. Registration is free and takes about fifteen minutes. Grid operators use the data to plan capacity per neighbourhood. We help you register so it is not forgotten.