Resources
Plain-English UK renewable energy resources
Everything we'd want to know before buying a solar, battery, EV, heat pump, boiler or AC system in 2026. Glossary, tariff comparisons, grant routes, calculators, 42 deep-dive blog posts. Free, no email gate.
Reference
Knowledge & definitions
Renewable energy glossary
55 plain-English UK terms — MCS, SEG, BUS, G99, V2H, COP, F-Gas and more.
OpenSmart Export Guarantee (SEG)
Compare all 10 UK SEG tariffs in 2026. Earnings calculator. 6-step apply guide.
OpenDNO applications (G98 / G99)
Northern Powergrid, NGED + SP Energy Networks. Why we handle this in-house.
OpenDecision tools
Quotes, calculators & costs
Grant routes
Grants & schemes
Solar grants & VAT relief 2026
Every active UK solar grant — ECO4, HUG, Warm Homes, SEG, 0% VAT relief. Honest eligibility.
OpenBoiler Upgrade Scheme (BUS)
£7,500-£9,000 heat pump grant. Full eligibility + application walkthrough.
OpenPSDS (public sector)
Up to 100% capital grant for schools, NHS, councils. Salix-administered.
OpenHow we work
Process & trust
Recent guides
Latest from the blog
August 2026
Sigenergy Review 2026: Is the SigenStor Worth It? (Installer View)
An approved installer's honest Sigenergy SigenStor review — what the 5-in-1 tower does well, where it does not suit, and what it costs fitted in the North East.
Read guideAugust 2026
Sigenergy vs Tesla Powerwall 2026: Which Should You Fit?
SigenStor vs Powerwall 3 compared by an installer who fits both — capacity, expansion, EV charging, backup, warranty and real installed cost in the North East.
Read guideAugust 2026
Sigenergy Cost UK 2026: SigenStor Prices Installed
What a Sigenergy SigenStor actually costs installed in 2026 — what drives the price up, what is included, VAT, and how it compares with Tesla and Fox ESS.
Read guideJuly 2026
Should You Tell Your Home Insurer About a Home Battery?
Fitting a home battery in the UK? Yes — you should tell your home insurer. Here's why it matters, what to say, and whether your premium will go up.
Read guideJuly 2026
ASHP Grants North East 2026: £7,500 BUS + Free Heat Pumps
Every air source heat pump grant in the North East in 2026: the £7,500-£9,000 BUS grant, genuinely free ECO4 installs, and the 0% Warm Homes Plan loan.
Read guideJuly 2026
Home Battery Installation North East: 2026 Guide & Costs
Home battery installation in the North East: day-by-day process, 2026 fitted costs from £3,000, Northern Powergrid G98/G99 rules, and Teesside coverage.
Read guideNeed help applying any of this to your property?
Free survey, fixed-price written quote, no high-pressure sales. We'll show you which of these resources are relevant to your specific install.