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UK home energy

Honest answers on cutting your energy bills.

WattSpotter compares plug-in solar, heating controls and home batteries for people in Great Britain. Rankings use published criteria. Whether a shop pays us is not one of them.

Sample fixture, not live shop prices.

Plug-in solar Savings calculator
Ranked on merit only How we rank

Where to start

Plug-in solar800W, one device per home, legal in Great Britain since 27 August 2026. Smart heatingThermostats ranked on control, not on who pays. Batteries and power stationsPortable packs in the price table. Home batteries are a different job. Smart tariffsWhat we will compare once the rates are checked. No invented prices. Rooftop solar and heat pumpsQuotes, not a shelf price. Commission will not pick the installer. The plain-English guideThe cap, the self-use sum, and what a kit will not do.

How a row is ordered

  1. The number on the name is a sample merit rank from the published criteria.
  2. The headline price is the lowest price still in stock. A cheaper out-of-stock price stays in its column.
  3. Who pays for a link is not an input. When a link is an ad, it is labelled (Ad).
Where the sample prices come from

Official feeds are preferred. Currys is Awin merchant 1599. Screwfix’s Awin id was not verified. The brand-shop column is a Webgains stub because Anker SOLIX is on Webgains. This build uses a fixture, so the adapters report:

  • Currys: no Awin feed URL configured, so nothing was fetched.
  • Screwfix: no Awin feed URL configured, so nothing was fetched.
  • Brand shop: no Webgains feed URL configured, so nothing was fetched. Anker SOLIX is on Webgains. Join that programme before a feed is fetched.