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

What a Norwich roof can make

The EU’s PVGIS tool models about 1,030 kWh a year per kWp in Norwich. It assumes a south-facing roof at 35 degrees. The best tilt is near 41 degrees, which gives 1,035 kWh per kWp, so the gain from tuning the angle is small.

A worked example makes this concrete. A 4 kWp system is 4 x 1,030, or around 4,120 kWh a year. Ofgem’s typical medium household uses 2,500 kWh of electricity a year, so the panels could out-produce a typical year of use. However, this is only a modelled estimate of output, and you will not use all of it at home.

That gap is why sizing matters, since yield changes the number of panels you need. Our guide on how many solar panels you need shows how to size from your usage, roof space and PVGIS yield. Shade, tilt and direction all change the final number, so ask for a survey.

VAT and timing

The price you pay depends on the tax rate. HMRC says installing specified energy-saving materials, which include solar panels and batteries, is zero-rated from 1 May 2023 to 31 March 2027. After that, the rate reverts to 5% under current legislation.

Our post on VAT on solar panels explains what qualifies. Because any later change would need a new announcement, treat the 2027 date as the current position rather than a certainty. Ask each installer to state the VAT rate on the quote.

Connecting to the network

Norwich sits in the Eastern Power Networks area run by UK Power Networks. This is the local distribution network operator, or DNO. Specifically, it needs notice of every new solar system.

There are two routes. Specifically, the MCS standard says G98 applies to installations up to and including 16 A per phase, and G99 applies above that. The 16 A figure counts all generators together, so a battery can change the route.

The same MCS standard says the certified installer must handle the notification. You should therefore not need to deal with the DNO yourself. Still, ask the installer when they will send it.

Planning in Norwich

The planning authority is Norwich City Council. The city is in England, where permitted development rules for solar changed on 27 August 2026. The Planning Portal’s summary says houses and blocks of flats now have separate rules.

However, projects that no longer qualify can use the old rules until 26 August 2027. In those rules, panels in a conservation area could not go on a wall facing a highway. Listed building grounds were also excluded.

For flats, the new order adds a prior approval step for stand-alone solar. Meanwhile, shared roofs often need the freeholder’s agreement. If your home is a flat, is listed or sits in a conservation area, contact the council before you order.

Selling what you do not use

Output peaks in summer, while home use often does not. Under the Smart Export Guarantee, a supplier pays you for power you export. GOV.UK explains that you apply directly to a supplier and that you need a meter giving half-hourly export readings.

Suppliers set their own rates, so they differ. A battery can raise the share of power you use yourself, but it costs extra. Therefore compare the extra price with what you expect to gain before you add one.

Finding and comparing installers

Begin with certification, because it is the quickest check. MCS is the UK quality mark for small-scale renewables, and its search lets you check a business by name. You need MCS-certified work to claim Smart Export Guarantee payments, so it affects your returns.

Next, look at cover for your deposit. The Renewable Energy Consumer Code requires members to insure deposits and workmanship warranties. Ask any firm if it is a member.

Then compare quotes like for like. Check the system size in kWp, the expected yearly output, the VAT rate and who files the DNO notice. Our page on solar panel installation describes a typical job. The guide to solar panel costs shows how to read the price.

For a wider comparison, solar panels in London is another place in the same network group. When you are ready, you can ask for quotes through this site. We are an independent guide, not an installer, and nobody contacts you unless you agree.