Solar & Batteries

Solar Payback in the UK — The Real 25-Year Curve (£7k → £11k profit)

Published 29 May 2026

What this video covers

A 4 kW solar array. Around £7,000 to install. Generates ~3,500 kWh a year. Here's exactly how the money flows over 25 years.

In this video

  1. 0:00 £7,000 to install
  2. 0:11 The 25-year cumulative payback curve
  3. 0:30 Break-even at year 8
  4. 0:40 £11,500 lifetime profit (vs install cost)
  5. 0:48 axiom ECO HOMES
Watch on YouTube Read the full guide