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 does Lerwick's climate affect solar generation?
Subarctic maritime climate; near-perpetual summer daylight balances low total sunshine hours. In practical terms, expect a 4kWp system to generate around 2,760 kWh per year — concentrated in the April–September window which typically delivers 75–80% of annual output.
02.Which installers should I use in Lerwick?
Only choose MCS-certified installers — this is a requirement for both the Home Energy Scotland loan and the Smart Export Guarantee. Highly specialist market; very few quotes per enquiry. Lerwick-based contractors typically partner with mainland MCS holders for certification. Get at least three quotes and insist on an itemised breakdown covering scaffolding, DNO paperwork and the MCS certificate.
03.What's the typical solar quote process in Lerwick?
Step 1: free desktop survey using satellite imagery and your annual electricity usage. Step 2: a 30–45 minute on-site survey checking roof condition, electrics and shading. Step 3: itemised written quote within 5 working days. Step 4: HES loan application (4–6 weeks if you're using it). Step 5: install in 1–2 days. Step 6: DNO commissioning and SEG export setup, 1–2 weeks.
04.Is battery storage worth it in Lerwick?
For most Lerwick households, yes. A 5–10kWh battery lifts self-consumption from ~30% to 65–75%, shortening payback by 1–2 years. Pair with a time-of-use tariff like Octopus Cosy to maximise the benefit. The HES loan covers up to £6,000 of battery cost separately from the £6,000 PV loan.
05.What happens if I sell my Lerwick home with solar installed?
Solar PV typically adds 1–4% to property value in Scotland and produces useful EPC uplift (often pushing a C-rated home into B). Buyers should be given the MCS certificate, DNO commissioning paperwork and SEG export agreement at point of sale. An outstanding HES loan transfers to the new owner or is cleared from sale proceeds.