2026-05-08 · Battery · 14 min
A year with a 5 kWh battery on a small solar array
A look at the meter data after twelve months. Payback came in earlier than the spreadsheet expected, mostly because of the tariff rather than the panels.
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Articles
Longer pieces that go into a single question in more depth than the reference guides. Reader data, owner experiences and corrections welcome.
2026-05-08 · Battery · 14 min
A look at the meter data after twelve months. Payback came in earlier than the spreadsheet expected, mostly because of the tariff rather than the panels.
2026-05-01 · Solar · 9 min
South-east at the front, north-west at the back. The decision came down to one specific bit of hardware.
2026-04-23 · EV · 11 min
A few months on the tariff, with bills before and after. A couple of surprises and one thing that took longer to notice.
2026-04-12 · Heat · 17 min
Survey, radiator changes, the BUS grant, the install week. The bit that took longest was not what we had expected.
2026-03-28 · Tariffs · 8 min
A short comparison of how Intelligent, Flux and Tracker work out across a household that has both panels and a car to charge.
2026-03-15 · Solar · 12 min
A 2.8 kWp system was a sensible number in 2019. It is not now, and the reasoning is not only about price.
2026-02-22 · Battery · 6 min
The vehicle-to-home story keeps inching closer. A short look at what is shipping versus what is still slideware.