This guide covers every stage of a DIY solar installation UK homeowners can follow from start to finish. We walk you through sizing your system, choosing compatible components, and meeting all UK compliance requirements — so you end up with a safe, legal, and SEG-eligible install.
DIY solar installation guide
Plan your own solar install from scratch. Work through the six steps below to size your system, pick every component, and leave with a complete shopping list and cost estimate.
- 10 min
Assess your energy usage
Calculate how much electricity you use annually — this determines how many panels you need.
Start step 1 - 15 min
Choose your solar panels
Pick the panels that fit your roof space and budget. We'll calculate how many you need.
Start step 2 - 10 min
Choose your inverter
The inverter converts DC power from your panels to AC for your home. We size it to match your array.
Start step 3 - Optional10 min
Add a battery (optional)
A battery stores surplus generation for evening use. Skip this step if you prefer a time-of-use tariff.
Go to step 4 - 10 min
Mounting, wiring and accessories
Racking, DC cable, MC4 connectors, isolators, and generation meter — the full bill of materials.
Start step 5 - 5 min
Certificates and sign-off
We handle Part P sign-off, DNO notification, and MCS certification — making your DIY install fully compliant and SEG-eligible.
Start step 6