How Long Does a Solar Panel Installation Take in Scotland?

Quick Highlights

• Solar panel installation typically 1 to 3 months from start to finish.
• The actual physical installation is usually completed in 1 to 2 days.
• Planning permission is generally not required under updated Scottish permitted development rules, but exceptions may apply (listed buildings, some conservation-area elevations, World Heritage Sites).
• Connecting to the grid requires notifying your Distribution Network Operator (DNO). Systems up to 3.68 kW export per phase typically follow G98 (install then notify). Higher export or certain setups need prior DNO approval under G99, which can add a few weeks.
• When choosing an installer look for MCS-accredited companies for quality assurance and SEG eligibility.
• As a broad guide in 2025, typical 3–6 kWp PV systems (without a battery) often range roughly from about £4,000–£10,000+ depending on size, roof/scaffold and hardware.

The typical solar installation process

1. Finding the right installer (1 Day - 2 Weeks)

Consider the following:

• Ensure the installers are MCS certified. By being MCS certified we are trained to deliver top-notch installations and are in compliance with industry standards.
• Look for companies with a solid track record in solar panel installation.
• Read reviews and testimonials to gauge past client experiences.
• Try different companies for multiple quotes to compare pricing and services but remember the cheapest isn't always the best option. You want your solar system to last typically between 25-30 years.

2. Initial assessment and quote (about 1 Week)

The installer should:

• Inspect your roof by checking its condition and suitability for solar panels.
• Check your roof's sunlight exposure to help determine how best to position your solar panels for maximum efficiency.
• Check your current electrical infrastructure to ensure that your system can handle your new solar setup.
• Provide you with a detailed quote. As a broad guide in 2025, typical 3–6 kWp PV systems (without a battery) often range roughly from about £4,000–£10,000+ depending on size, roof/scaffold and hardware.

3. Planning and permissions (varies)

• Usually planning permissions in Scotland are not required for standard, roof‑mounted installations under updated permitted development rules.
• The exceptions are for listed buildings, some conservation-area elevations (e.g. principal elevation facing a road), or World Heritage Sites — check with your local council if unsure.
• To connect to the grid you must inform the DNO (Distribution Network Operator). Systems up to 3.68 kW export per phase typically follow G98 (install then notify). Higher export or certain configurations need prior DNO approval under G99, which can add 2–4+ weeks.

4. Customizing your solar system (1 - 2 Weeks)

This typically involves the following:

• Your energy consumption is usually analysed to help tailor the system to meet your energy needs.
• Selecting panels and inverters best suited for Scotland's climate.
• To ensure compliance all regulatory requirements and standards must be met.

5. Ordering equipment and scheduling installation (1 - 3 Weeks)

Some things to consider:

• The availability of supplies should be checked to avoid any delays in equipment delivery.
• Check the schedule of your installers to find a suitable installation date.

6. Installation day(s) (1 - 2 Days)

This process typically includes:

• Setting up the framework on your roof with mounting structures.
• Securing the solar panels in place.
• Connecting the system to your home's electrical system.
• Testing your system to ensure everything functions properly before activation.

After installation: final steps before activation

1. System registration and grid connection (1 - 2 Weeks)

This typically includes:

• As a requirement for grid connection and to comply with regulations we must notify the DNO (G98/G99 as applicable).
• Receive an MCS certificate for your installation.

2. Smart export guarantee (SEG)

Steps:

• Applying for an SEG enables you to receive payments for excess energy exported back to the grid.
• To be eligible you generally need an MCS‑certified system (or equivalent accredited certification) and a smart meter that can measure exports.

Keeping your solar panels in top shape

Maintenance tips:

• Scottish rain often keeps panels clean; clean only if output drops or you see visible soiling. Follow the manufacturer’s instructions and avoid abrasives and high‑pressure washing.
• Use monitoring systems to keep an eye on energy production.
• Consider periodic inspections by professionals, especially if monitoring shows a drop or after severe weather.

Tips for a smooth solar experience in Scotland

• Research MCS-accredited installers thoroughly.
• Home Energy Scotland funding focuses on heat pumps and insulation; standard PV and home battery funding isn’t generally available in 2025 (withdrawn 6 June 2024). ECO4 can sometimes include PV where the main heating is electric or being switched to electric, via obligated suppliers.
• Zero VAT on qualifying energy‑saving materials — including solar PV and standalone battery storage — runs until 2027 across Great Britain. This can save up to around £1,850 on a typical install, depending on system size and kit.
• Ensure your roof is in good condition and your electrical system is up to date.
• Even with Scotland's less intense sunlight, solar panels can still significantly reduce your carbon footprint and energy bills.

Conclusion

While the solar panel installation process in Scotland can take a few weeks to a few months, the long-term benefits make it a worthwhile investment. Costs typically range from about £4,000 to £10,000+ for systems between 3–6 kWp, depending on roof, hardware and scaffolding. Timelines may vary based on location, local regulations, and the chosen installer. Staying informed and selecting an MCS-accredited company are key to a successful transition to solar energy in Scotland.

Feel free to check out our Our Solar Services or Contact Us if you have any questions.