Plug-in battery or fixed home battery?
A plug-in battery goes into an ordinary socket and is cheaper, but has little power, often around 800 W. A fixed home battery goes on its own circuit, can charge and discharge much faster, and costs more.
The power determines how much of your consumption the battery can cover at one moment. When the hob, the washing machine or the car is on, your house often needs several kW. A plug-in battery supplies only part of that; the rest comes from the grid, even if the battery is still full. Conversely, it also absorbs only part of a large solar surplus.
Connection
A plug-in battery shares the circuit with the other appliances on that circuit. If in doubt, have an installer check whether the circuit can handle it. A fixed battery is connected by an installer to its own circuit.
Smart control and VAT
A plug-in battery usually cannot be controlled by a trading party, and reclaiming the VAT on the purchase is usually not worthwhile. The calculator therefore calculates a plug-in battery with VAT.
Calculating it
In the calculator you enter the battery's power. That way you can see what a battery with little power yields next to one with more power, for your own hourly consumption.
Calculate what a battery with your power yields
An estimate, not personal advice. How the calculator works: How does this calculator work?
Other questions
- Does a home battery pay off?
- What changes when net metering ends?
- Do solar panels still pay off without net metering?
- Fixed or dynamic contract: which is cheaper?
- What is a dynamic energy contract?
- Is a dynamic contract smart with solar panels?
- How do I compare dynamic energy contracts?
- What are the risks of a dynamic contract?
- Does a dynamic contract pay off with an electric car?
- What are feed-in costs?
- What will the end of net metering cost me?
- Should I cancel my fixed contract before net metering ends?
- Does a home battery make sense without solar panels?
- Should I switch off my solar panels when power prices are negative?
- Does it pay to charge the electric car on solar power?
- Does a heat pump suit a dynamic contract?
- How do I read my annual electricity statement?
- What is a feed-in tariff?
- How much of my solar power do I use myself?
- Battery, charger, heat pump or another contract: what first?
- How big should my home battery be?
- Does a home battery make sense with a fixed contract?
- How much energy does a home battery lose?
- Is electricity cheap at night with a dynamic contract?
- What does a home battery do in winter?
- How much electricity do I use at night?
- Does a home battery suit a heat pump?
- Which energy comparison site can I trust?
- How do I calculate the payback time of a home battery?
- What do time-dependent network tariffs mean for me?