Solar panels in Lerwick: a local guide to costs, savings and trusted installers
If you're weighing up solar panels in Lerwick, the headline numbers for 2026 are straightforward: £6,800–£9,800 for a typical 4kWp install, around £540 in annual savings at current Scottish energy prices, and 14-year payback. The detail — housing stock, planning, installer choice — is where this guide goes deep.
Is solar worth it in Lerwick?
Solar is worth installing in Lerwick for most owner-occupiers with a south, east or west-facing roof of reasonable size — not because Scottish sunshine matches the south coast (it doesn't), but because Scottish module operating temperatures are cooler, Scottish electricity prices are high, and the Home Energy Scotland loan removes the cash-flow barrier.
A 4kWp Lerwick install produces roughly 2,760 kWh/year — enough to cover ~45–55% of a typical Scottish household's annual electricity demand directly, with the surplus exported at 15p–30p/kWh under the Smart Export Guarantee.
Where the case weakens: heavily shaded rear gardens, listed buildings where Listed Building Consent won't approve street-facing PV, or homes already heated entirely by gas with low electricity baseload and no plans for an EV or heat pump.
| Sunshine hours/year | 1100 |
| Yield per kWp | 690 kWh |
| Typical 4kWp output | 2,760 kWh/yr |
| Estimated 25-yr savings | £13,500 |
| Solar suitability | 2/5 |
Housing stock in Lerwick
Shetland's solar payback is the longest in the UK — but unique summer 'simmer dim' (near-24-hour daylight in June) creates exceptional shoulder-month generation.
Predominant roof type: Stone-built town centre, modern bungalows.
Sunshine, irradiance and what to expect from Lerwick roofs
Subarctic maritime climate; near-perpetual summer daylight balances low total sunshine hours.
A typical south-facing 4kWp installation in Lerwick produces around 2,760 kWh/year — enough to cover roughly 45–55% of a typical Scottish household's annual electricity demand (Scottish average ~3,400 kWh). With a battery, self-consumption typically rises from 30% to 65–75%.
Lerwick solar prices and system sizing
| System size | Indicative cost (2026) | Annual saving | Payback |
|---|---|---|---|
| 3kWp (~7 panels) | £5,304–£7,644 | £405 | 14.4 yrs |
| 4kWp (~9 panels) | £6,800–£9,800 | £540 | 14 yrs |
| 6kWp (~14 panels) | £9,180–£13,230 | £756 | 13.4 yrs |
| + 5kWh battery | + £2,500–£3,800 | + £180–£320 | — |
See our full Scottish solar cost guide for line-item breakdowns and what to expect on the quote.
Local installer market
Highly specialist market; very few quotes per enquiry. Lerwick-based contractors typically partner with mainland MCS holders for certification.
Shetland planning rules for solar
Shetland Islands Council; rural and island HES cashback applies.
Use our grants & funding guide to check Home Energy Scotland loan and ECO4 eligibility before requesting quotes.
Get a Solar Quote in Lerwick
Compare honest, MCS-certified installer quotes for your address. No pushy sales calls — just a 60-second form and a transparent breakdown of costs, savings and payback.
- ✓ UK-based independent advice
- ✓ MCS-certified installers only
- ✓ No obligation, no upfront fees
- ✓ Local savings estimates
Calculate your Lerwick solar savings
Our solar savings calculator uses Lerwick-specific irradiance assumptions (690 kWh/kWp/year) to estimate generation, self-consumption and payback for your address.
Lerwick solar FAQs
01.How long will scaffolding be up at my Lerwick property?
For a straightforward 4kWp install on a two-storey Lerwick semi, scaffolding is typically erected the day before roof work, stays up for the 1–2 day install, and is dismantled 1–3 days after commissioning — 4–7 days end to end. Pavement licences (if the scaffold overhangs the public footway) add a 5–10 working day lead time via Shetland Council.
02.What ongoing maintenance will I need to do?
Almost none. In Lerwick's wet-and-windy climate, natural rainfall keeps panels within 3–5% of peak output year-round. Budget for one visual inspection every 2–3 years (£80–£150), one inverter replacement at year 12–15 (£700–£1,400) and a battery replacement at year 12–15 if you fitted one (£2,200–£3,800).
03.Can I install solar myself in Lerwick?
Technically yes on a single-storey extension or outbuilding, but you lose access to the Smart Export Guarantee, the Home Energy Scotland loan and every serious insurance product — all of which require MCS certification, which can only be issued by an accredited contractor. For any grid-connected install, self-installation is a false economy.
04.Is there a waiting list for solar installers in Lerwick?
Lead times in Lerwick follow a seasonal pattern: 3–5 weeks from quote to install in October–January, stretching to 8–14 weeks between March and July when demand peaks. Booking a survey in autumn for a spring install is the single easiest way to shorten the wait.
05.What happens if my Lerwick installer goes out of business?
MCS-certified installers in Lerwick are required to carry Insurance-Backed Guarantees (IBG) via HIES, RECC or QANW, which continue to cover workmanship for 10 years even if the company folds. Panel and inverter manufacturer warranties are also honoured directly by the manufacturer, not the installer.