Smart Home Energy 
Heatable installs home batteries with a fixed online price and no salespeople — choose Tesla Powerwall or Alpha ESS, get fitted in 4 weeks, and start using your solar energy after dark instead of selling it back for pennies.
Problem it solves
Stores surplus solar energy for use after dark, or charges from the grid overnight on cheap off-peak tariffs — reducing what you buy at full price and protecting against power cuts.
Who it's for
Homeowners who already have solar panels and want to stop exporting cheap electricity, or who want to arbitrage cheap overnight electricity on a time-of-use tariff. Also suits anyone wanting home backup during power cuts.
Why we recommend
Heatable will give you an online quote within minutes, have good batteries on offer, have nationwide coverage and Which? Trusted Traders 3 years running (2023–2025), and a 4.8 on Trustpilot from over 13,000 reviews. They're a good choice if you're serious about solar and/or batteries.
Savings
- Typical annual saving
- £300–£900/year when paired with solar; £100–£300/year grid arbitrage only on Agile or Intelligent Go
- Payback period
- 8–14 years (with solar); 10–16 years (grid arbitrage only)
