Preston is one of Lancashire's fastest-growing cities — and one of the most practical locations for solar PV investment in the North West. With a diverse mix of residential properties, significant commercial and industrial footprint around the Docks and Walton Summit, and a local authority committed to net-zero targets, Preston homeowners and businesses have every incentive to act now while solar remains in place.
How much solar energy does Preston get?
Preston sees approximately 1,350 sun hours per year — very close to the UK average and more than sufficient for a productive solar installation. Being slightly inland, Preston doesn't benefit from Liverpool's coastal effect, but the difference in annual generation is modest: a well-designed south-facing system here performs comparably to most of England.
A south-facing 4kW system in Preston generates approximately 3,300–3,700 kWh per year.
| System size | Typical output (Preston) | Annual bill saving | Approx. payback |
|---|---|---|---|
| 4 kWp | 3,300–3,700 kWh | £880–£1,080 | 7–9 years |
| 6 kWp | 4,950–5,550 kWh | £1,300–£1,600 | 6–8 years |
| 6 kWp + battery | 4,950–5,550 kWh | £1,700–£2,050 | 6–8 years |
Savings based on 28p/kWh unit rate and 5.5p SEG export tariff (2026 figures).
What does solar cost in Preston?
Preston and the surrounding Lancashire area offers installation costs broadly in line with the North West average. Based on industry data for 2026:
- 4kW system (3-bed semi): £5,500–£8,200 installed
- 6kW system (4-bed detached): £7,500–£11,000 installed
- Battery storage add-on: £2,500–£5,000
All Alliant Energy quotes are free, no-obligation and returned within 24 hours.
Domestic solar in Preston
Preston's residential areas cover a wide range of property types, from Victorian terraces in Ribbleton and Plungington to larger semis and detacheds in Fulwood and Penwortham, and newer estates around Ingol and Cottam.
Fulwood and Penwortham properties tend to have larger roof footprints and good south-facing aspect — ideal for 5–6kW systems with battery storage.
Victorian terraces in the PR1 and PR2 inner-city areas are well-suited to 3–4kW systems. South-facing rear roof sections are often the productive face — we assess this during the free survey.
New-build estates around Cottam, Longridge Road and the northern fringes of the city are seeing strong uptake as residents look to offset rising energy costs from day one.
Commercial solar in Preston
Preston's commercial base includes a significant logistics, distribution and public sector footprint. Preston Docks, Walton Summit Industrial Estate and Cuerden Valley are all established commercial zones where large flat-roof and pitched-roof installations are viable.
The University of Central Lancashire (UCLan) campus and the associated supply chain of student accommodation and commercial operators around the city centre also represent strong solar candidates.
Key commercial solar facts for Preston businesses:
- 5–7 year ROI on systems from 30kWp upwards
- Zero-upfront PPA options for qualifying commercial rooftops
- 100% capital allowance on commercial solar in Year 1 under current HMRC rules
Postcodes and areas we cover in Preston
We install across Preston and the surrounding Lancashire area:
Preston city: PR1, PR2 (City centre, Ribbleton, Plungington, Deepdale) North Preston: PR3 (Garstang, Longridge, Chipping) South Preston / Penwortham: PR4 (Penwortham, Lostock Hall, Leyland) Fulwood / Broughton: PR2 (Fulwood, Grimsargh) Bamber Bridge / Walton-le-Dale: PR5 Chorley: PR6, PR7
Energy prices and solar potential in the North West
Lancashire sits in the North West Energy Distribution Zone, served by Electricity North West Ltd. Under the Q3 2026 Ofgem energy price cap, the standard electricity unit rate in the North West is approximately 25.2p/kWh — elevated compared to pre-2022 rates of 16-18p/kWh. The Pendle Valley area — covering Nelson, Brierfield, Colne, and Barrowford — receives a mean annual solar irradiance of approximately 985 kWh/m²/year (Global Horizontal Irradiance), sufficient for viable solar on any roof with at least 50% south-facing exposure.
Frequently asked questions — solar panels in Preston
Is Preston a good location for solar panels? Yes. With around 1,350 annual sun hours, Preston sits on the UK average — which is already sufficient for an economically productive solar installation. A well-designed system in Preston will perform comparably to systems installed in the Midlands and most of southern England.
How much can I save on my Preston electricity bills with solar? A typical 4kW system saves most Preston households £880–£1,080 per year. Adding battery storage typically increases this to £1,400–£1,700. The exact figure depends on your consumption patterns, tariff, and self-use habits.
We check eligibility as part of every quote. Even without a grant, the economics of self-funded solar in Preston are strong given current energy prices.
How does Alliant Energy handle the planning and grid connection process? We take care of everything — documentation, DNO (Distribution Network Operator) notification, and SEG registration. Once installation is complete, your system is ready to export the same day.
What brands of solar panels do you install in Preston? We install premium-tier panels from Aiko, Jinko and Trina Solar, paired with inverters from Solis, Solax and SolarEdge. Battery options include GivEnergy, Tesla Powerwall and Sigenergy. We specify the right combination for your property's size, roof type and budget.
Why Alliant Energy for Preston solar?
- Experienced local installers
- Fully insured installations
- 25-year performance guarantee
- Free quotes within 24 hours-
- Experienced local installers
- Fully insured installationsFully insured and experienced local installers
- Based in Nelson, Lancashire — genuinely local to Preston
- 25-year panel performance guarantee
- Free, no-obligation quotes within 24 hours
- Commercial PPA and domestic grant options available
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