Solar & Batteries

Solar Battery Payback: 8 Years or 16 Years (Tariff Decides)

Published 2 Jun 2026

What this video covers

A 5 kWh solar battery. £4,500. Does it pay back? Depends entirely on your tariff. On a flat tariff: 16 years. On a time-of-use tariff: 8.

In this video

  1. 0:00 £4,500 for a 5 kWh battery
  2. 0:11 Flat tariff: 16-year payback (skip)
  3. 0:22 TOU tariff: 8-year payback (do it)
  4. 0:32 The rule
  5. 0:40 axiom ECO HOMES