Solar PV Installer
A solar PV installer designs, installs, and commissions solar photovoltaic systems for homes and commercial properties. Solar panels generate electricity from sunlight, reducing energy bills and carbon emissions.
What does a solar PV installer do?
Solar PV installers handle the full process from survey to commissioning, including:
- Roof survey and shading analysis
- System design and panel layout optimisation
- Solar panel installation on pitched and flat roofs
- Inverter and optimiser installation
- Battery storage system installation
- EV charger integration with solar systems
- Grid connection and DNO notification
- MCS certification and Smart Export Guarantee (SEG) registration
Is solar PV installation regulated in the UK?
Yes. To access government schemes such as the Smart Export Guarantee (SEG) and for the installation to be eligible for export payments, the installer must be certified under the Microgeneration Certification Scheme (MCS). MCS certification ensures compliance with industry installation standards (MIS 3002).
Electrical work must comply with Part P Building Regulations, and the installer should be registered with a competent person scheme (such as NICEIC or NAPIT) for the electrical elements. A qualified roofer may also be involved depending on the installation requirements. Solar panel installations benefit from 0% VAT for eligible residential installations (currently extended to March 2027).
Planning permission is generally not required for domestic solar panels under Permitted Development rights, but check with your local planning authority if the property is listed, in a conservation area, or the panels project significantly from the roof plane.
What to look for when hiring a solar PV installer
When choosing a solar PV installer, consider:
- MCS certification — Essential for SEG eligibility and a key quality indicator.
- Detailed roof survey — Avoid companies that quote remotely without visiting. Shading, roof condition, and structural adequacy all need checking.
- Quality components — Ask about panel brands, inverter type, and warranty periods. Tier 1 panels from established manufacturers offer better long-term performance.
- Battery options — If you want battery storage, ensure the installer is experienced with your preferred battery system.
- Workmanship warranty — In addition to product warranties, check the installer offers a workmanship guarantee of at least 5 years.
Frequently Asked Questions
How much do solar panels cost?
A typical 4kW residential system costs £5,500–£8,000 installed, generating roughly 3,400 kWh per year. Adding battery storage (5–10 kWh) adds £3,000–£6,000. Larger 6–8kW systems cost £7,000–£12,000. Eligible residential solar installations currently benefit from 0% VAT.
How long do solar panels take to pay back?
Typical payback periods are 7–12 years depending on energy usage, system size, and how much generated electricity you use directly. Solar panels have a typical lifespan of 25–30 years, so you benefit from free electricity for many years after payback. The Smart Export Guarantee pays for electricity you export to the grid.