Key facts for commercial solar in the East of England
| Network operator | UK Power Networks (Eastern licence area) |
| Indicative yield | About 850 to 1,025 kWh per kWp per year for a typical rooftop array |
| Planning regime | England: national permitted development rules |
| Vehicle charging zones | No charging clean air zones in the region |
| Nation support page | England (national schemes, see below) |
| City pages | None yet: this page covers the whole region |
The network in the East of England
UK Power Networks runs the distribution network across Norfolk, Suffolk, Essex, Hertfordshire, Bedfordshire and Cambridgeshire through its Eastern licence area. A few sites near the region's edges may be served by a neighbouring operator, because licence boundaries do not follow county lines exactly. Confirm yours with the Energy Networks Association postcode tool.
Because so many sites here are rural, the practical question is often the supply rather than the roof. Farms and food sites at the end of long rural lines can have limited capacity to accept export, and the operator may offer a lower export figure than the array could produce. In those cases an export limitation scheme under G100, or a battery to absorb surplus generation, can make the project work. Anything above G98 limits needs G99 approval before connection; our G99 and DNO applications guide explains the steps.
Yield in the East
East Anglia is one of the drier and sunnier parts of England. In our PVGIS model (version 5.2, SARAH2 data, 14% system losses), a south-facing 1 kWp array at the optimum tilt near Norwich gives about 1,040 kWh a year, and an east-west layout at 10 degrees about 840 kWh. Hertfordshire and Essex sites model similarly. Large, unshaded agricultural and warehouse roofs here often get close to modelled figures, though east-west layouts on low-pitch roofs sit towards the lower end of the range.
Planning in the region
Planning follows the national rules for England, including the December 2023 widening of permitted development for non-domestic rooftop solar. The region includes the Broads, which has status equivalent to a national park, and National Landscapes such as the Suffolk Coast and Heaths and the Norfolk Coast, where conditions are tighter and ground-mounted arrays need careful siting. Grade 1 to 3a farmland also gets particular attention in planning decisions for ground-mounted schemes. Our planning permission guide covers the detail.
There are no charging clean air zones in the region at present. Fleet electrification decisions here are driven more by cost and customer carbon requirements than by local charging zones.
Buildings and economy that matter for solar
- Ports and logistics. The Port of Felixstowe is the UK's largest container port, and Harwich, Tilbury and London Gateway add further port capacity. Distribution warehouses line the A14, A12 and A1(M) corridors and the M11 towards Stansted. Big, flat or low-pitch roofs with daytime operations suit solar well; see our warehouses page.
- Arable farming and the Fens. Cambridgeshire, Norfolk and Suffolk are dominated by arable and vegetable production. Grain stores, potato and vegetable stores and packhouses have large roofs and, where there is drying or cold storage, substantial electricity demand. See our farms page.
- Food processing. Sugar beet processing, vegetable packing and meat and poultry processing are significant in Norfolk and Suffolk, with refrigeration and process loads running through the day. See food and drink.
- Science and technology. Cambridge and its surrounding science parks, and Stevenage and Hertfordshire's life sciences sites, run laboratories and offices with high baseload demand.
Many farms and rural businesses here also have land next to the yard that could take a ground-mounted array. That avoids the structural limits of an older roof and allows an ideal south-facing tilt, but it brings its own questions: planning permission, the agricultural grade of the land, the length of the cable run to the supply point, and security. Where demand is seasonal, for example a store that is busy in autumn and winter, a battery or a smaller array may suit better than filling every roof.
Support and finance
East of England businesses use the national schemes for England: capital allowances, the business rates exemption for eligible onsite generation and storage plant to 31 March 2035, and the Smart Export Guarantee for exported power. See grants and support in England. Always confirm tax treatment with your accountant.
How the free survey works in the East of England
Fill in the short form and we will call to understand the site, how you use electricity across the day and the year, and what you know about your supply. If it looks suitable, we arrange a free survey with one MCS certified installer matched to the site. For large rural sites the installer often starts with a virtual assessment using aerial imagery and your meter data, then visits to inspect the roof, the supply point and any land for a ground-mounted array. Your details go to that one installer only, and there is no obligation to proceed. See how a survey works.
Frequently asked questions
Who is the network operator in Norfolk, Suffolk and Essex?
UK Power Networks, through its Eastern licence area, which covers almost all of the East of England. Sites close to the region's boundaries may occasionally fall under a neighbouring operator, so confirm with the Energy Networks Association postcode tool. Knowing this early means the installer can check published network capacity information before designing the system.
Our farm is at the end of a long rural line. Can we still export?
Possibly, but the operator may limit how much. Rural lines often have less spare capacity, and a G99 application may come back with a lower export figure or a cost for reinforcement. Options include an export limitation scheme under G100, a battery to store surplus generation, or sizing the array to your own daytime use. The survey looks at these choices.
Are there clean air zones in the East of England?
There are no charging clean air zones in the region at present. That means fleet electrification here is usually driven by fuel costs and customer or contract carbon requirements rather than local charges. If your vehicles travel into London, the London-wide ULEZ and the Congestion Charge still apply to those journeys.
Is a grain store or vegetable store a good building for solar?
Often yes. These buildings tend to have large, unshaded roofs and, where drying, ventilation or refrigeration is used, a real electricity load. The survey checks the roof structure and condition, whether older sheeting contains asbestos, and how your seasonal demand matches generation, since a store that is idle in summer may export more than it uses.
Related pages
- FarmsDairy, poultry and grain enterprises can make good use of solar on sheds or land. A farm survey looks closely at seasonal demand, building condition and rural grid capacity.
- WarehousesLarge unshaded roofs and daytime shift work make many warehouses a strong fit for rooftop solar, provided the roof structure, rooflights and lease terms stack up.
- Food and drinkRefrigeration and process cooling give food and drink sites a strong match with solar. The survey pays close attention to hygiene zones, insulated panel roofs and fire risk.
- G99 and DNO applicationsG98 versus G99, what goes into a DNO application, connection offers, export limitation under G100, reinforcement costs and how the survey checks your supply.
Battery storageWhen a commercial battery pays: storing surplus solar, time of use tariffs, peak shaving, sizing from half-hourly data, illustrative costs, safety and siting.- EnglandCurrent solar support in England for businesses, schools, public bodies, community groups and farms, plus rates, planning and who to contact.