Why Exeter is well suited to solar energy
Although Exeter doesn't have the reputation of southern Mediterranean cities, the South West of England consistently records some of the highest annual sunshine hours in the United Kingdom. Devon averages around 1,650 hours of sunshine a year, with Exeter benefitting from its sheltered position in the Exe Valley. That makes it ideal for photovoltaic (PV) generation, particularly between March and October when daylight is plentiful and roof temperatures stay within the optimal range for panel efficiency.
Exeter's housing stock is also a good match for solar. The city contains everything from Edwardian terraces in St Leonard's, Newtown and Pennsylvania, to 1930s semis in Heavitree, Whipton and Wonford, through to large new-build developments in Cranbrook, Pinhoe, Tithebarn and Monkerton. Most of these properties have unshaded roof pitches between 30 and 45 degrees — almost exactly the angle solar engineers would design from scratch — and many face within 45 degrees of true south.
On top of that, the city is supported by a strong electrical grid with relatively few connection issues for typical domestic systems. For most Exeter homes, a 3.68kW or 5.32kW solar system can be installed and energised under standard G98 notification rules, which means no lengthy DNO application is required.
How much do solar panels cost in Exeter?
The cost of a solar PV system in Exeter depends on roof size, the panels and inverter chosen, scaffolding requirements, and whether you add a battery or EV charger. As a guide, a typical 4kW domestic system on a standard pitched roof in EX2 or EX4 ranges from around £5,000 to £7,500 fully installed, including scaffolding, panels, inverter, isolators and notification to your DNO.
Adding a 5kWh battery typically adds £3,500–£5,500 to the project. Larger 10kWh batteries such as the Tesla Powerwall or a Sunsynk-paired GivEnergy unit usually fall in the £7,000–£10,000 range. A 7kW EV charger installed alongside a solar system normally adds £800–£1,200 depending on cable run length.
Most Exeter households see annual electricity bill savings of £900–£1,400 with a well-designed solar-only system. Adding battery storage typically raises savings to £1,200–£1,800 a year, depending on tariff and consumption. Combined with Smart Export Guarantee (SEG) payments for excess energy exported back to the grid, payback periods generally land between 6 and 9 years.
Funding, finance and SEG payments
Solar panels for residential properties in Exeter are zero-rated for VAT until at least 2027, which has shaved 20% off most quotes since 2022. Several lenders also offer renewable energy finance with monthly repayments designed to be lower than the bill savings the system creates. We can introduce you to FCA-regulated finance providers if helpful, with no obligation to proceed.
Once your system is installed and NICEIC-certified, you can register with any SEG-licensed supplier — Octopus, EDF, Eon Next and others — to be paid for every kilowatt-hour you export. SEG rates currently range from around 4p/kWh up to 15p/kWh on certain tariffs.
Planning permission for solar in Exeter
Most domestic solar installations in Exeter fall under permitted development rights and do not require planning permission. The main exceptions are listed buildings, properties within designated conservation areas (such as parts of Central Exeter, St Leonard's and Heavitree) where panels would be visible from a highway, and flat-roof installations that protrude more than 200mm above the roof.
Exeter City Council has been generally supportive of solar applications when they are needed, particularly under the council's declared climate emergency and net zero plan. We handle any planning enquiries on your behalf and design systems that minimise visual impact — for example using all-black in-roof panels for character properties.
Exeter areas we cover
- EX1 — City centre, Newtown, St Leonard's, Polsloe
- EX2 — Marsh Barton, Alphington, Countess Wear, Wonford, St Thomas
- EX3 — Topsham and the estuary villages
- EX4 — Pennsylvania, Mount Pleasant, St James, Exwick, Pinhoe
- Cranbrook, Tithebarn, Monkerton and surrounding new-build estates
Battery storage, EV chargers and the smart Exeter home
Solar panels alone typically allow Exeter homes to self-consume 30–45% of the electricity they generate. Adding battery storage pushes that figure to 75–90%, by capturing midday surplus and discharging in the evening peak when grid electricity is most expensive. Pair that with a time-of-use tariff like Octopus Go or Intelligent Octopus and your effective unit cost can fall below 8p/kWh — less than a third of the standard variable rate.
EV ownership is rising fast in Exeter, helped by rapid chargers at Sandy Park, Sowton Industrial Estate, the John Lewis car park and on-street provision in the city centre. A home 7kW charger paired with solar gives the lowest possible cost per mile and removes the queues at public chargers. We are OZEV-approved installers and handle the full installation, including any DNO notification.
Why choose a local Exeter installer
Solar is a long-term investment — most systems are designed to last 25 years or more. Choosing a local Exeter-based installer gives you confidence that the team installing the system will still be around to service it, swap an inverter or add to the array in five or ten years. Our offices are at Unit 16, Michael Browning Way in Marsh Barton, just off the A379, and our installation vans cover Exeter daily.
We're NICEIC and HIES accredited, which protects your warranty, your eligibility for the Smart Export Guarantee and your consumer rights. All work is carried out by our own employed engineers — we don't subcontract. That means consistent standards, no surprises on installation day, and a single point of contact from your first survey through to commissioning.