Solar & Batteries

10 Ways to Size a Solar System Correctly

Published 5 Jun 2026

What this video covers

A countdown of essential steps for UK homeowners.

Thinking of going solar? Sizing your system is the most critical step. Here are the ten key factors to get it right, from Axiom Eco Homes.

In this video

  1. 0:00 Intro
  2. 0:09 10. Match Output to Annual Usage
  3. 0:19 9. Account for Roof Orientation
  4. 0:30 8. Check Local Shading Patterns
  5. 0:42 7. Factor in Inverter Sizing
  6. 0:51 6. Allow for Future Battery Storage
  7. 1:03 5. Consider Seasonal Generation Variation
  8. 1:13 4. Use the MCS Online Calculator
  9. 1:23 3. Check Roof Structural Capacity
  10. 1:31 2. Get Three Quotes and Compare
  11. 1:38 1. Use a Smart Tariff for Savings
  12. 1:46 Where to start