Solar panels in Coventry: output, VAT, grid and planning

What the numbers say for Coventry

Start with the sun, since it drives everything else. The EU’s PVGIS tool models about 987 kWh a year for each kWp in Coventry. That assumes a south-facing roof at 35 degrees. The best angle here is about 40 degrees, which gives 990 kWh per kWp.

Here is a worked example. A 4 kWp system is 4 x 987, which is around 3,948 kWh a year. However, treat that as a modelled estimate. It describes what the panels make, not what you use or save.

Several things push your own figure up or down. A south roof does best, while east or west roofs make less. Trees and chimneys that cast shade also cut output. PVGIS already builds in a 14% default loss for wiring, inverters and dirt.

If you want to compare cities, our table of solar output across 24 UK cities is a good place to start. Coventry’s figure sits close to the other Midlands cities in the data.

VAT on a Coventry installation

The tax rate matters because it changes the quote. HMRC says installing specified energy-saving materials, including solar panels and batteries, is zero-rated until 31 March 2027. After that date the rate reverts to 5% under current law.

Our post on VAT on solar panels explains what qualifies. Standalone and retrofitted batteries are covered too. Since rates depend on legislation, ask each installer to state the VAT rate on the quote.

Grid connection

Coventry sits on the West Midlands network, which is run by National Grid Electricity Distribution. Every new generator must be notified to it. The route depends on size, and there are two.

According to the MCS standard, systems up to and including 16 A per phase follow G98. Above that, G99 applies. The limit counts all generators together. For example, a 3 kW solar system plus a 3 kW battery on one single-phase supply falls under G99.

The same standard says the MCS contractor must send the notification. Therefore you should not have to chase the forms yourself. Our post on G98 and G99 grid connection covers what to expect and when.

Planning checks

Coventry is in England, where the permitted development rules for solar changed on 27 August 2026. However, older rules still apply to some projects. The Planning Portal’s note on the changes says houses and blocks of flats now follow separate rules. Projects that no longer qualify can use the old rules until 26 August 2027, so ask which set applies to you.

Meanwhile, the old rules set out limits for sensitive sites. In a conservation area, panels could not go on a wall facing a highway. The right did not extend to buildings in the grounds of a listed building.

Coventry City Council handles planning here, so it is the body to ask. If your home is a flat, a listed building or in a conservation area, ask the council before you sign anything. That one email can save you a costly redesign.

Exporting and storing spare power

Panels often make more power than a home needs at midday. The Smart Export Guarantee lets you sell the surplus. Ofgem says suppliers with at least 150,000 domestic customers must offer a tariff, although each one sets its own rate.

However, you need a meter that records half-hourly export readings, which is typically a smart meter. Our explainer on the Smart Export Guarantee shows how to compare offers. A battery is a separate choice, so weigh its cost against what you would gain.

Picking an installer

Always check certification first, because it affects your payments. MCS is the UK quality mark for small-scale renewables, and its search tool shows whether a business holds it. You need MCS-certified work to claim payments under the Smart Export Guarantee as well.

Consumer protection is the next test, and it matters most when you pay a deposit. RECC members must insure deposits and workmanship warranties, which helps if a firm stops trading. Ask any installer whether they are covered and for how long.

Then line up several quotes, because prices and kit vary. Each should name the system size in kWp, the expected yearly output, the VAT rate and who notifies the network operator. Our overview of solar panel installation lists what a typical job includes. The page on solar panel costs helps you judge the price.

Birmingham is nearby, so solar panels in Birmingham gives you a useful comparison. When you are ready, you can ask for quotes through this site. We are an independent guide rather than an installer, and nobody contacts you unless you agree.