The average homeowner is quoted $18,000–$24,000 for an 8 kW system — before the 30% federal tax credit brings that to $12,600–$16,800. We publish verified payback timelines, real installer quotes, and every incentive stacked by state. No greenwashing. Just math.
Every piece is built around verified numbers — system costs, payback math, real quotes.
Flat roofs are actually well-suited to solar panels — you can angle the panels for optimal output rather than accepting whatever pitch the roof gives you. This guide covers the four main flat roof mounting systems, what a typical installation costs in 2026, planning permission rules, and how to maximise yield on a flat surface.
Read guide →When an EV battery drops below 70–80% of its original capacity, it leaves the vehicle — but still holds enough energy for a decade of stationary storage. The UK's second-life EV battery market is expanding, driven by companies like Connected Energy, falling repurposing costs, and new EU battery passport requirements that are reshaping how batteries are tracked from manufacture through retirement.
Read guide →Solar pool heating can extend an outdoor swimming pool's usable season from 10 weeks to 6 months in the UK. This guide covers unglazed solar thermal collectors, solar PV with heat pumps, realistic costs (£2,500–£9,000 installed), sizing rules, and what actually delivers the best return for UK pool owners.
Read guide →Enter your zip code. Get every solar, EV, and home energy incentive available to you — federal, state, and utility — with current dollar amounts and deadlines.