Most home-energy sites are sales funnels in disguise. We're a calculator. Plug in your roof, your usage, your postcode — and see what solar, a heat pump, or a battery would actually save you. Honest maths, current grants, no nonsense.
Postcode-adjusted yield, SEG export earnings, battery uplift, 25-year payback.
Solar self-consumption uplift + time-of-use arbitrage. The bit most quotes miss.
Net install cost after the £7,500 grant, running cost vs your boiler, payback.
Home/public mix, EV-specific tariffs, honest petrol comparison.
BIK tax, NI savings, net monthly cost vs private lease.
ECO4, Warm Homes, BUS, Nest, Home Energy Scotland — what you qualify for.
Loft, cavity, solid wall, floor, draught-proofing — costs, savings, ECO4 eligibility.
Would a time-of-use tariff save you money? Models EV, battery and smart timer shifting.
Solar + heat pump + battery + EV — combined install, savings and payback.
Octopus 15p, E.On 16.5p, EDF, OVO and more. Updated monthly.
Solar quote sites tend to assume south-facing roofs, no shade, full self-consumption, and 15p export tariffs that almost no one gets. Heat pump comparison tools forget panel-radiator costs. Grant explainers don't say which schemes are closing this year.
We model the boring details — regional yield, panel degradation, battery time-shifting, grant overlaps — and we show our working. If solar isn't worth it for your roof, we'll say so.
The cap rose 4% — gas up 8.7% as heating season starts. What changed in pounds and 10 ways to claw back £300+.
Current install costs, SEG income, when payback breaks even, and three roofs where it doesn't make sense.
£7,500 for ASHP, £2,500 for air-to-air (new), eligibility, MCS rules, and the application gotchas.
Self-consumption vs tariff arbitrage, honest payback maths, degradation, sizing — and when it doesn't make sense.