Solar take-up around Northwich: what the borough figures show

The figures

The Department for Energy Security and Net Zero publishes renewable electricity statistics by local authority, including the number of solar PV sites in each area. For Cheshire West and Chester, the borough that includes Northwich, the figures used in this guide are:

Between the end of 2019 and the end of 2025 the count rose by 5,981, so the borough had about 2.0 times as many solar sites at the end of the period as at the start. That is roughly 1,000 new sites a year on average, although the two end points alone do not show how the growth was spread across the years in between.

The published series runs from 2014 to 2025. This guide uses two points from it, the end of 2019 and the end of 2025, because together they show the scale of change over a recent six-year stretch without leaning on any single year. Anyone wanting the year-by-year detail can download the full tables from the DESNZ page linked above.

What “sites” and “per 100 households” mean

A site in these statistics is a solar PV installation recorded at a location. The count is not limited to homes: it also takes in panels on businesses, public buildings and other non-domestic property, and ground-mounted arrays. A small array on a terrace and a large commercial array each count once.

Dividing the 2025 count by DESNZ’s estimate of 155,200 households in the borough gives about 7.6 sites per 100 households. Because some of those sites are not homes, the share of households with panels will be lower than the ratio. It is best read as a measure of how ordinary solar has become, not as the proportion of homes with panels on the roof.

The DESNZ household estimate sits very close to the 2021 Census count of 155,154 households in the borough (Census 2021), which is a reassuring check on the denominator.

What the figures cannot tell you

• Where in the borough. The statistics cover Cheshire West and Chester as a whole. They do not separate out Northwich, its wards or any street, and this guide does not invent a town figure.
• Homes against other buildings. The count mixes domestic and non-domestic sites.
• Size and storage. The site counts used here say nothing about how big each system is or whether it has a battery.
• Quality. A count is not a measure of how well any system was installed or how it performs.

Not every household has a roof to use

A ratio per 100 households counts everyone, including households that could not fit panels themselves. Flats are the clearest case, because the roof of a block is normally shared property, not something one household can decide about alone. Across the borough, 11.9% of households live in flats, and in the three wards that carry the Northwich name the share varies widely (Census 2021):

• Northwich Leftwich: 21.3% of households in flats, 42.5% renting privately or socially.
• Northwich Winnington & Castle: 12.7% of households in flats, 28.3% renting privately or socially.
• Northwich Witton: 11.9% of households in flats, 46.0% renting privately or socially.

Renters can have panels too, but only with a landlord’s agreement, so in wards with a lot of renting or flats, take-up depends partly on decisions made by landlords and building owners. The routes open to them are set out in renters and flats.

Switch Together and the borough’s growth

Part of the growth came through the council’s group-buying scheme. According to Cheshire West and Chester Council, 473 people in the borough had solar fitted through the Switch Together Solar rounds of 2023 to 2025. That figure counts people over three rounds, while the DESNZ figure counts sites over six years, so one cannot be subtracted from the other. What the scheme figure does show is that a council-run route has played a real part in local take-up. How the scheme works, and when its latest registration closed, is explained in grants and schemes.

What it means for a Northwich household

The practical consequence of a borough with thousands of solar sites is simple: you may well not be the first on your street. Neighbours, friends and colleagues with panels are a source of information no brochure can match, because they have lived with the result through every season.

Questions worth asking a neighbour

1. Who installed the panels, and would you use them again?
2. Did the surveyor go into the loft and look at the roof structure?
3. How was the scaffolding arranged, and were there problems with slates or tiles?
4. Did the paperwork arrive: MCS certificate, electrical certificate, grid notification?
5. How does a year’s generation compare with the estimate in the quote?
6. Have you needed the installer since, and how did they respond?

Treat the answers as one data point. A neighbour’s experience with one firm, some years ago, on a different roof, settles nothing about yours. It can still tell you which questions to press hardest when you speak to firms yourself, and the full checklist for that conversation is in choosing an installer.

Comparing a neighbour’s output with yours

If a neighbour shares their generation figures, compare per kWp rather than in total, because arrays differ in size: divide the annual generation in kWh by the system’s rating in kWp. PVGIS 5.3 puts a due-south 35° roof near Northwich at 939 kWh per kWp a year, an east-facing 35° roof at 752 and a west-facing one at 743. A south-facing neighbour well below the south figure may have shading, a fault or a weak design; an east-facing one is not doing badly to come in under a south roof. Every direction and pitch is set out on output on a Northwich roof.

Becoming the neighbour others ask

Once your own panels are up, you join the borough’s count and, sooner or later, someone on the street will ask you the same questions. Keeping simple records makes your answer more useful, and helps you too. Note the generation reading from the inverter or meter on the same date each year, keep the quote’s estimate beside it, and file the certificates where you can find them. A run of yearly figures shows whether the system is holding up, flags a fault early, and gives a future buyer something concrete when the house is sold.

Panels next door and the planning position

Panels on neighbouring roofs do not settle whether yours need permission. Each house is judged on its own status, and a conservation area boundary, a listing or an Article 4 direction can apply to one house and not the next. If your street is in or near one of the conservation areas named near the town, read conservation areas before assuming anything.

More houses for sale with panels

Rising take-up also means more houses coming onto the market with panels already on the roof. If you are buying one, the paperwork matters as much as the hardware; see buying a Northwich home with solar. The ward-level picture of the town’s housing, which shapes what kind of roof you are likely to be dealing with, is on Northwich homes by ward, and the most common questions are answered briefly in the FAQs.