• SOLAR FORUM UK

  Solar battery sizing calculator – looking for testers

  Posted by Battery Tailor on February 10, 2026 at 8:15 pm

  Hi all,

  I posted a survey here last year about solar battery sizing. Since then I’ve built an actual calculator from that feedback.

  BatteryTailor – https://www.batterytailor.co.uk/

  Password to Access form: BatteryT2026

  
  

  It helps you figure out what battery size you actually need based on:

  • Your roof details
  • Your electricity usage
  • Your tariff structure
  • Future plans (EV)

  Most installers recommend 10kWh or 13.5kWh regardless of your situation. This model your specific home properly.

  Completely free. Takes about 5 minutes.

  If you’re comparing solar quotes or sizing a battery, give it a try and let me know what you think!

  Happy to answer questions.

  batterytailor.co.uk

  BatteryTailor | Solar Battery Calculator UK

  BatteryTailor: Independent solar battery calculator for UK homeowners. Get personalised, unbiased recommendations on solar panels, home batteries & EV charging – free beta access

  Battery Tailor replied 2 months ago 1 Member · 0 Replies
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