In short
DESNZ counted 11,740 solar PV sites in Cheshire West and Chester at the end of 2025, against 5,759 at the end of 2019: about 2.04 times as many. That is roughly 7.6 sites per hundred households, though the count includes farms, businesses and other non-domestic sites. No public figure exists for Frodsham alone.
The official count
The government’s energy department publishes renewable sites and capacity for every council area, including the number of solar PV sites at the close of each year. For Cheshire West and Chester, the borough Frodsham belongs to, the series gives these two snapshots:
| Year end | Solar PV sites | Sites per hundred households |
|---|---|---|
| 2019 | 5,759 | 3.7 |
| 2025 | 11,740 | 7.6 |
The borough gained 5,981 sites over those six years, so the 2025 figure is about 2.04 times the 2019 one: very nearly a doubling. Spread evenly, the gain would be close to 997 new sites a year, though in practice the pace has risen and fallen with prices, schemes and the wider energy market. The years in between are in the same release for anyone who wants the full path rather than its two ends.
Measured against the department’s estimate of 155,200 households, the latest count comes to about 7.6 sites for every hundred households, up from roughly 3.7. That ratio is useful for scale, but it needs reading with care, for the reason set out next.
A count of sites, not of homes
A site in this series is any solar installation, whatever its size and whoever owns it. A field of ground-mounted panels, a warehouse roof, a school and a terrace house each add one to the total. Non-domestic sites therefore sit inside the borough’s 11,740, and dividing by the number of households gives a ceiling for how common panels are on homes rather than a measured share. The real proportion of houses with panels is lower than 7.6 in a hundred, by an amount the series does not reveal.
The count says nothing about size either. A borough with many small roof systems and one with fewer, larger arrays could post the same number. It does not record which way systems face, whether they are still working, or how much of their output is used on site. It confirms only that a site exists.
Why the town has no figure of its own
DESNZ reports by council area, and the borough is far larger than Frodsham. Nor does any other public source fill the gap: the 2021 census asked about heating, tenure and house type, but not about panels on the roof. Estimating a town figure would mean guessing which households have panels and which do not, so this guide leaves the borough number as it is and explains what lies behind it, rather than inventing precision it does not have.
Other records that come close
Energy Performance Certificates note whether a home had panels when it was assessed, and the certificates are public. They still cannot give a town count. Only homes that have been sold, let or improved in recent years have a certificate at all, panels fitted after the last assessment do not appear, and some older listed houses have never needed one. Planning records are thinner still, because most roof systems are permitted development and never reach the council. The borough count, with its limits understood, remains the firmest figure available.
Putting the ratio in proportion
Even if every one of the borough’s sites were on a house, 7.6 per hundred would mean panels on fewer than one home in 13. Because some of the sites are farms, businesses and public buildings, the share of homes is smaller than that. Solar is common enough that most streets will have an example or two, but it is still a minority choice, and a household considering it is far from late to the idea.
How Frodsham’s homes compare
What the census can show is how the town’s housing differs from the borough’s, which bears on how easily households can go ahead, though not on take-up itself. The figures are from the Census 2021 ward tables.
- Ownership. In the Frodsham ward 76.1% of households own their home, against 68.3% across the borough, and 45.0% own it outright. Owners decide about their own roofs; tenants need a landlord to agree.
- House type. Detached houses make up 37.2% of Frodsham households and 30.6% of the borough’s; flats 9.5% against 11.9%. Detached houses tend to offer more roof and more choice of position.
- Heating. Mains gas alone heats 80.7% of Frodsham households, against 78.0% borough-wide.
- Helsby for comparison. Next door, 76.9% of households own their home and 34.3% live in detached houses.
On those measures Frodsham leans towards households that can decide about panels without asking anyone else. Against that sit things no census measures: the ridge that shades homes at its foot through the winter, the 4 conservation areas that carry the town’s name, and the many listed buildings in the old centre. Which way the balance tips cannot be read from the data. The full ward figures are on Frodsham homes by ward, the ridge on the hill and winter sun, and the planning rules on Frodsham’s conservation areas and solar.
Switch Together’s share
Part of the growth came through the council’s group-buying scheme, Switch Together Solar. By the council’s account, 473 people in the borough had solar installed through its 2023 to 2025 rounds. Set against the 11,740 sites counted at the end of 2025, that is roughly 4% of the total, though the two figures come from different sources and dates and do not match up exactly. The latest registration closed on 25 September 2026; grants and schemes keeps track of what is open.
Storage sits outside the count
Because the series counts places that generate electricity, a home battery does not register in it, whether it arrived with panels or later. That leaves storage largely unmeasured at borough level. How a battery might suit a particular house is weighed on batteries in Frodsham.
Keeping the figures current
The department updates the series once a year, and each release can revise earlier years as late registrations arrive, so the numbers here are the ones published when the source was read. The count for the end of 2026 will follow in a later release. Every dataset used across this guide is listed on data and sources, with the date each was checked.
From the borough to one roof
More panels across the borough make solar familiar, but familiarity is no guide to whether one roof suits it. Direction, pitch, shade, the condition of the roof and the planning position decide that. Start with output on a Frodsham roof, check a firm against the public records on choosing an installer, and find the other guides in the guides section.