Solar panels in Birmingham: yield, grid and planning

What solar can make in Birmingham

PVGIS is the European Commission’s free solar tool. For Birmingham it models about 968 kWh a year for every kWp, on a south-facing roof tilted at 35 degrees. You can see the inputs in the PVGIS calculation for Birmingham.

The ideal tilt is about 40 degrees, which models at 971 kWh per kWp. Most pitched roofs sit close to that, so tilt is rarely the problem. Orientation and shade usually matter more, because they change how much sun reaches the panels across the day.

For example, a 4 kWp system would make about 4 x 968, or 3,872 kWh a year. That is a modelled estimate, not a guarantee. A roof facing east or west would make less, while a chimney or tree that shades the panels can cut it further.

PVGIS also assumes a 14% system loss for cables, inverters, dirt and ageing. Your installer’s own design software may use different assumptions. Ask to see them, because the headline number depends on them.

Connecting to the grid

Birmingham sits in the West Midlands area of National Grid Electricity Distribution. The network operator must hear about every new generator. The route depends on size.

Systems up to 16 A per phase follow G98, and larger ones follow G99, according to the MCS solar standard. The threshold counts all generators together. A 3 kW solar array plus a 3 kW battery on one single-phase supply therefore falls under G99.

Our explainer on G98 and G99 grid connection walks through both routes. In short, G98 is a notification. National Grid’s page says a small system is notified within 28 days of commissioning. G99 can need approval first, so your installer should start it early.

The MCS standard puts the notification duty on the installer. Still, ask who will do it and keep the confirmation.

Planning with Birmingham City Council

Planning decisions come from Birmingham City Council. Most houses can add panels without a full application. However, England’s permitted development rules for solar changed on 27 August 2026.

The Planning Portal’s note on the changes explains that houses and blocks of flats now have separate rules. Projects that no longer qualify can use the older rules until 26 August 2027. We do not quote the new limits here, because you should confirm them for your own roof.

Conservation areas and listed buildings carry extra restrictions. Flats follow their own route. If your home falls into any of those groups, ask the council first.

Some households may get help with the cost. England’s Warm Homes: Local Grant is delivered by local authorities and lists solar PV as an eligible measure. It is aimed at low-income, privately owned homes with an EPC rating of D to G. Ask the council whether you qualify.

Is a battery worth adding?

Many Birmingham households ask about batteries when they ask about panels. A battery stores daytime power for the evening. However, the payoff depends on your habits, your tariff and the price. A home that is empty all day gets more from one than a home with someone in.

Our post on whether solar batteries are worth it covers sizing and retrofit. MCS tells buyers to compare how much energy a battery stores with how much it can deliver at once. Battery installers can also work to MCS standard MIS 3012.

Since a battery adds to the generator total, it can change your grid route. Mention it at the quote stage.

Choosing an installer

Start with MCS certification. MCS runs a public search, so you can check a firm before you invite it round. Besides, you need MCS to claim Smart Export Guarantee payments. Without it, spare power you send to the grid earns nothing.

Next, look at the consumer code. RECC members must insure deposits and workmanship warranties. Because of that, you have cover if the firm stops trading.

Get at least three written quotes and compare like with like. Check panel count, inverter, warranty and who handles the paperwork. Our page on solar panel installation shows what a full job includes. The guide to solar panel costs explains the price data, which comes from DESNZ.

Coventry shares the same network operator. Our page on solar installers serving Coventry shows a slightly higher modelled yield.

When you are ready, you can request quotes from vetted MCS installers. Nobody contacts you until you send the form.