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Is a home battery the cheapest way to use excess solar

The answer

Use your actual electricity use, export tariff and interval data to model whether a battery beats alternatives such as shifting appliances into solar-generating hours.

What to do next

  1. Use your actual electricity use, export tariff and interval data to model whether a battery beats alternatives such as shifting appliances into solar-generating hours.
  2. SunSPOT can compare battery sizes and tariffs, but its headline simple payback does not include finance costs, maintenance or opportunity cost.
  3. A battery is not necessarily the lowest-cost use of surplus solar.

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SunSPOT solar and battery calculator

Start with the responsible provider or public information service. It can address the specific account, booking, consumer-rights or technical issue rather than recommending an unrelated purchase.

Open SunSPOT solar and battery calculator — official website

What to check before deciding

SunSPOT can compare battery sizes and tariffs, but its headline simple payback does not include finance costs, maintenance or opportunity cost. A battery is not necessarily the lowest-cost use of surplus solar. Use interval usage data to compare daytime appliance scheduling against the installed cost and useful life of a battery. SunSPOT is a planning tool, not a guaranteed investment return.

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Frequently asked questions

Which details are most important for is a home battery the cheapest way to use excess solar?

Use your actual electricity use, export tariff and interval data to model whether a battery beats alternatives such as shifting appliances into solar-generating hours.

What other option could work for is a home battery the cheapest way to use excess solar?

SunSPOT can compare battery sizes and tariffs, but its headline simple payback does not include finance costs, maintenance or opportunity cost.

What practical considerations apply to is a home battery the cheapest way to use excess solar?

A battery is not necessarily the lowest-cost use of surplus solar.

Which details are most important for is a home battery the cheapest way to use excess solar (part 4)?

SunSPOT can model batteries against other sizes and tariffs. Its simple payback excludes financing and opportunity cost.