Most popular
Cost + payback calculator
Enter sqm, annual bill, EPC band, tenancy type. Get system size, capex, annual saving, payback, NPV, EPC uplift, CO₂ saved, MEES 2030 status.
New
60-second suitability quiz
6 questions on roof, size, occupancy, bill, EPC, tenancy. Returns fit score 0-100, indicative system size, payback range, applicable grants, MEES status.
Compliance
MEES 2030 compliance pathway
Full pillar on MEES 2030 — what the revised proposal actually requires (EPC B by 2031 for offices over 1,000 m², with EPC E still the legal minimum today), who it affects, and how solar PV is the most cost-effective single measure to lift office EPC bands.
Funding
Grant route mapper
8 UK funding routes mapped by sector and project size. AIA, full expensing (solar excluded, special-rate), Salix PSDS, WCS, SEG, IETF, UKIB, RLS — with worked stacking examples.
Compare
Buying decision comparator
5 side-by-side decision tables: cash vs PPA, battery vs no-battery, solar vs heat pump, MCS vs RECC, in-house vs outsourced O&M.
Process
6-step install timeline
Animated 6-step timeline from feasibility to commissioning. What you receive at each stage, typical durations, deliverables.