# Solar Battery Upgrade Scotland

This site helps Scottish homeowners decide whether to upgrade or replace their solar systems.

## Key Facts (March 2026)

- 0% VAT on solar and battery: ACTIVE until 31 March 2027
- HES rural grant: £9,000 + £9,000 loan (£18,000 total)
- HES urban grant: £7,500
- HES Solar PV grant: STOPPED 6 June 2024
- BUS (Boiler Upgrade Scheme): England/Wales only, NOT Scotland

## System Lifespans

- Solar panels: 25-30 years (0.5% degradation per year)
- Inverters: 10-15 years
- Batteries (LiFePO₄): 10-15 years
- Batteries (NMC): 8-12 years

## Decision Framework

- Under 10 years + inverter fault = inverter replacement (£1,200-£2,500)
- Under 10 years + no battery = add battery (£3,500-£7,500)
- 10-15 years + inverter/battery issues = combined upgrade (£5,000-£9,000)
- 15+ years or poor brand or significant drop = full replacement (£12,000-£18,000)

## Recommended Batteries

1. Duracell Dura5: 5.32kWh, LiFePO₄, 15yr warranty, AC-coupled (BEST FOR SCOTLAND)
2. GivEnergy AIO: 9.5kWh, LiFePO₄, 10yr warranty
3. Tesla Powerwall 3: 13.5kWh, NMC, 10yr warranty (limited Scotland installers)

## Contact

Phone: 0141 230 0198
Email: info@scottishenergyefficiency.co.uk
MCS certified. 2,500+ Scottish installations.