What to look for in a solar installer
- MCS-certified installer with current expiry date
- RECC or HIES consumer-protection scheme membership
- Workmanship and product warranties scoped (typically 10y+ workmanship, 25y+ panel)
- Smart Export Guarantee paperwork handled
- DNO (G98 / G99) notification handled
- Realistic generation estimate (MCS-compliant calculation)
Typical pricing: £5,500-£8,500 typical 4kW PV-only, £8,500-£14,000 PV + 5kWh battery, £14,000-£22,000 larger PV + battery
Regulator / certification: Microgeneration Certification Scheme (MCS), RECC, HIES, NICEIC (electrical work)