Summit Solar

Make more of your solar.

A battery stores excess solar energy so you can use it later — in the evening, instead of importing costly power from the grid.

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How a battery works

  1. Daytime

    Your solar panels generate electricity during the day.

  2. Store

    Excess energy is stored in a battery.

  3. Evening

    Use stored energy in the evening or when solar isn’t generating.

  4. Less grid

    Less reliance on the grid.

Benefits of a battery

Use more of your solar

Keep the energy you generate instead of selling it cheaply.

Power your evenings

Run your home on solar after the sun goes down.

More independence

Rely less on the grid and peak-time pricing.

Backup power

Potential backup during outages (depending on system), with less reliance on generators.

Is a battery right for you?

A battery isn’t the right call for every home. Here’s an honest guide.

A battery makes sense if…

  • You use a lot of power in the evening and overnight
  • You want backup when the power goes out, which matters on rural Wairarapa lines
  • You want to be as self-sufficient as possible
  • Your solar system makes more than you use during the day

You might hold off if…

  • Someone’s home using power through the day
  • Your overall power use is fairly low
  • Getting the quickest payback is your top priority
  • Your solar system is small, with little spare to store
Not sure yet? Plenty of people start with solar and add a battery later, once they’ve seen what solar does to their bills. We can help you choose an inverter that makes adding one later straightforward. Most home batteries come in modules of around 5–10 kWh, and many can be expanded as your needs grow.

Better together

Solar + Battery

Pairing solar with a battery is a great way to get more value from your solar system and make the most of the energy you generate.

Already have solar? We can talk through adding a battery to your existing system.

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