Solar Inverter Replacement Costs Scotland 2026
Transparent pricing with automatic 0% VAT until 31 March 2027
Standard Inverter Replacement Costs#
String Inverter
Standard replacement
£1,200 - £1,800
- 3-5kW capacity
- 0% VAT included
- Full installation
- G98/G99 paperwork
- MCS certificate
Hybrid Inverter
Battery-ready upgrade
£1,800 - £2,500
- 3-5kW capacity
- Battery-ready
- 0% VAT included
- Full installation
- G98/G99 paperwork
- MCS certificate
Learn about adding battery storage when replacing your inverter
What's Included#
- Site survey: Free assessment of your existing system
- Inverter supply: Premium brands (SMA, Fronius, SolarEdge, GivEnergy, Solis)
- Installation: Full removal of old inverter and installation of new
- DNO paperwork: G98 notification or G99 approval handled for you
- MCS certificate: Required for any future grant claims
- Warranty: Manufacturer warranty (typically 5-10 years)
0% VAT Explained#
All solar inverter replacements automatically qualify for 0% VAT until 31 March 2027. This applies to both the inverter unit and installation labour. On a typical £2,000 installation, this saves you £400 compared to the standard 20% VAT rate. No application needed — it is automatic.
Additional Costs to Consider#
G99 Application (systems over 3.68kW)
Included in our quote. Some DNOs charge fees (typically £50-£150) which we advise on upfront.
Electrical upgrades
If your existing AC isolator or cabling needs upgrading: typically £100-£300 extra. Identified during the free survey.
Battery storage (optional)
If choosing a hybrid inverter and adding a battery now: typically £3,000-£6,000 depending on capacity. See our Full solar battery upgrade guide.
Get Your Free Quote
Every installation is different. Get an accurate quote based on your system.