Learn

The topics,
with real numbers.

Plain-English guides built from one UK home's data, with sources and dates on every claim.

Topics
(A)Guide coming soon

Solar panels

Sizing, roof faces, and what a UK roof really makes.

(B)Guide coming soon

Battery storage

How much you need and how to charge it.

(C)Guide coming soon

Heat pumps

Running costs, SCOP and life after the gas boiler.

(D)Guide coming soon

EV charging

Smart charging and running the car on sunshine.

(E)Guide coming soon

Tariffs and the price cap

Import, export and smart tariffs explained.

(F)New for 2026

Plug-in solar

Balcony kits up to 800W, and the rules changing in 2026.