Solar Panels in Harrow, Greater London

Harrow, Greater London, has a solar yield of 960 kWh/kWp (ideal conditions for solar energy). A 4kWp system generates approximately 3,840 kWh annually, covering 101% of average household electricity use and saving an estimated £684+ per year. With 0% VAT on installation, a typical 4kWp system costs £6,600 to £8,500, with payback in 11 to 13 years.

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1,570+ sunshine hrs/yr

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Harrow solar at a glance

960

kWh per kWp yield

3,840

kWh/yr from 4kWp

£684

Est. saving per year

11 to 13 yrs

Typical payback

The Picture in Harrow

Area Data	Value
Elevation	58 metres
Postcode Area	HA1
Coordinates	51.5968°N, 0.3373°W

Population and housing data: ONS Census 2021.

Harrow Location

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Harrow council schemes, planning and neighbourhoods

Harrow Council has contracted iChoosr to run Switch Together, a group-buying scheme for home solar panels, and the borough has 30 conservation areas. Here is what applies before you get quotes.

Council scheme

Switch Together Harrow

Harrow Council has contracted iChoosr to promote the Switch Together group-buying scheme for home solar PV, with the contract notice published on 8 September 2026. Residents register for free and contract directly with the installer. The council has also had Warm Homes: Local Grant funding to help low-income households insulate their homes.

Harrow Switch Together contract notice

Planning in Harrow

30 conservation areas

Harrow has 30 conservation areas, grouped under Harrow on the Hill, Pinner, Stanmore and Edgware, and Harrow Weald. The council uses Article 4 directions to remove some permitted development rights, for example requiring permission to change roof tiles in certain cases, and lists the directions on each area's page.

Harrow conservation areas Planning permission for solar panels

Towns just outside Harrow

Wembley Edgware

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Google and Trustpilot ratings for MCS-certified firms working across Harrow.

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Solar panels across London

Harrow is part of London. See London-wide costs, council schemes and planning rules, plus every London borough we cover.

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Solar at a Local Level in Harrow

Harrow is a London borough. The postcode area for Harrow is HA1. You'll need your full postcode when getting quotes from MCS-certified installers.

Pricing solar panels in Harrow

What a typical home in Harrow needs, what it costs fitted with 0% VAT, and what it generates at Harrow's solar yield of 960 kWh per kWp:

1–2 bed

3 kWp, 7 panels

Output in Harrow: 2,880 kWh/yr
Typical cost: £5,700–£7,000
Payback: 13–15 years

3 bed

4 kWp, 10 panels

Output in Harrow: 3,840 kWh/yr
Typical cost: £6,600–£8,500
Payback: 11–13 years

4 bed

5 kWp, 12 panels

Output in Harrow: 4,800 kWh/yr
Typical cost: £8,300–£10,200
Payback: 11–13 years

5+ bed / EV

7 kWp, 16 panels

Output in Harrow: 6,720 kWh/yr
Typical cost: £11,000–£13,000
Payback: 9–11 years

Typical yearly use: 1–2 bed about 1,800 kWh, 3 bed about 2,700 kWh, 4 bed about 4,100 kWh, 5+ bed / EV 4,100 kWh or more. Payback assumes an average export rate; the best tariffs shorten it.

Solar Panels in Greater London →Full Cost Guide →Installation Guide →Sell Excess Energy (SEG) →

Solar Installers in Greater London

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Power Cuts in Greater London Today

Live power cut map for Harrow and the rest of Greater London, with recent power cuts and how long they usually last.

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Solar Panel FAQs for Harrow

How much do solar panels cost in Harrow?

A typical 10-panel (4 kWp) system costs £6,600–£8,500 fitted in Harrow, with 0% VAT. Install prices vary little across the UK, but output does: in Harrow that system generates about 3,840 kWh a year and saves around £684, paying back in roughly 11–13 years.

Is there a solar panel grant or council scheme in Harrow?

Switch Together Harrow: Harrow Council has contracted iChoosr to promote the Switch Together group-buying scheme for home solar PV, with the contract notice published on 8 September 2026. Residents register for free and contract directly with the installer. The council has also had Warm Homes: Local Grant funding to help low-income households insulate their homes.

Do I need planning permission for solar panels in Harrow?

Usually not for an ordinary house. Harrow has 30 conservation areas, grouped under Harrow on the Hill, Pinner, Stanmore and Edgware, and Harrow Weald. The council uses Article 4 directions to remove some permitted development rights, for example requiring permission to change roof tiles in certain cases, and lists the directions on each area's page.

How do I find a good solar installer in Harrow?

Use an MCS-certified installer, so you qualify for 0% VAT and Smart Export Guarantee payments, and compare at least three quotes for the same panels, inverter and warranty. Our Harrow reviews page ranks local firms by their Google and Trustpilot ratings.

Solar Guides & Resources

More on solar panels for Harrow homeowners:

How much do solar panels cost in the UK?→Solar battery storage costs and sizing→Smart Export Guarantee rates compared→How many solar panels do you need?→Do you need planning permission?→Do solar panels work in winter?→

Sources

Last updated: November 2026

Fact-checked by John Rooney, Solar Energy Editor. Editorial policy

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