Do the sun sums.
Plain-English guides and tools for UK homes with solar, batteries, EVs and smart tariffs, built by a homeowner who's done it all. Real numbers, no sales talk.
The SunSums Bundle
On Sale
£34.00
£34.00
Everything SunSums makes: the guide to getting it right, and the kit that proves it's working.
Get the plain-English guide to choosing the right tariff, solar and battery setup, plus the Home Assistant kit that tracks what it all really saves, every five minutes.
You get:
- The SunSums Playbook: the 26-page UK guide to cutting your energy bill with solar, a battery, an EV and the right tariff.
- The SunSums Savings Planner: a spreadsheet for your payback, comparing quotes and tracking monthly savings.
- The SunSums Home Assistant Kit: live cost tracking, daily and monthly history, Octopus half-hourly prices and phone notifications.
£4 less than buying them separately.
⚡ Instant download of all three