Matlock Solar Guide: Spa-Town Roofs, World Heritage Rules & 10 Verified Installers

These figures are modelled for Matlock, not a UK average. A 4kW, south-facing system at 35° is estimated to produce 3,652 kWh a year, with a peak of about 464 kWh in May and 106 kWh in December.

• 3,652 kWh / yearEstimated output of a 4kW roof system in Matlock
• 25.36p per kWhPrice-cap unit rate for Matlock’s region (East Midlands), Oct–Dec 2026, vs 26.32p GB average
• £370–£555 off your billIf you use 40–60% of what the panels make at home
• + £190–£285 export incomeThe rest sold at 13p/kWh on an open Smart Export Guarantee tariff

That works out at roughly £655–£745 a year, repaying a £6,490 install in about 8.7–9.9 years. Matlock sits in the Derwent valley on the line where the Dark Peak gritstone meets the White Peak limestone, and its yield lands between Belper’s lower valley and the higher, cloudier ground around Buxton.

Sources: output from the EU’s PVGIS 5.3 model (SARAH-3 data) for Matlock, 4kW, 35° south-facing, roof-mounted, 14% system losses. Unit rate from Ofgem’s price cap for 1 Oct–31 Dec 2026. Export rate: Fuse Energy Single Rate Variable, September 2026. Installed cost: Sunsave, August 2026. Your own figures will depend on roof direction, shading and how much electricity you use in daylight.

This guide covers the DE4 postcode district: Matlock town, Matlock Bank, Matlock Green and Matlock Bridge, Starkholmes and Riber, Hackney, Tansley, Darley Dale and Two Dales, Cromford and Matlock Bath, Bonsall, and Wirksworth to the south. Around 73% of DE4 homes are owner-occupied and almost four in ten are detached, so plenty of households have their own roof to decide on. The installers here work from Hackney, Tansley, Wingerworth, Clay Cross and the Erewash and Nottinghamshire side of the county.

Matlock BankMatlock GreenMatlock BridgeMatlock BathStarkholmesRiberHackneyTansleyDarley DaleTwo DalesCromfordBonsallWirksworth

Postcode sectors DE4 2–DE4 5 from Royal Mail data (via getthedata and Wikipedia). Housing tenure and type from the 2011 Census for DE4 (StreetCheck). Parts of DE4 around Crich and Lea fall in Amber Valley, not Derbyshire Dales.

• Derwent Valley Mills World Heritage SiteInscribed in 2001, it runs about 15 miles from Matlock Bath to Derby and takes in Cromford and Masson Mill. In a World Heritage Site or conservation area, panels on a wall or roof facing a highway are not permitted development.
• Matlock Bath conservation areaMatlock Bath is a conservation area and has an Article 4 direction covering properties there, which can remove householder rights. Check with Derbyshire Dales planning before booking a survey.
• Peak District National ParkThe park boundary lies directly west of Matlock. The town itself is outside it, but for homes inside the park the Peak District National Park Authority, not the district council, decides on planning.
• Listed buildingsDerbyshire Dales has more than 1,325 listed buildings outside the national park, including County Hall. Any listed building needs consent before panels go on.
• National Grid Electricity DistributionMatlock is in NGED’s East Midlands area. Most home systems are notified after installation (G98); larger systems need approval first (G99).

Sources: UNESCO and Wikipedia (Derwent Valley Mills); GOV.UK / legislation.gov.uk (GPDO Schedule 2 Part 14); Derbyshire Dales District Council (listed buildings, climate change); Peak District National Park Authority; Energy Networks Association.

Repton, in South Derbyshire (DE65), is folded into this guide because it has no separate one yet. The village centre is a conservation area built around St Wystan’s Church, whose 8th-century crypt was a burial place of Mercian kings and is Grade I listed, and Repton School, founded under Sir John Port’s will in 1557 inside the remains of the Augustinian priory. The historic core is a conservation area, so panels on a wall facing the road need permission; roof panels are usually permitted development but should be placed where they are least visible.

Repton is about five miles from Burton upon Trent and Swadlincote and ten from Derby, and it is on the NGED East Midlands network, so the 25.36p unit rate above applies there too. Two MCS firms fit well: Howitt Electrical Services (NAP-70628), based next door in Willington, and Midland Solar (NAP-77288) from Tamworth, which has a page written for Repton that discusses its heritage buildings. For more installers south of Derby, see our Derby solar guide.

Sources: Wikipedia (Repton; Repton School); Midland Solar; MCS listings via Find Certified Installers. We could not confirm how South Derbyshire residents apply for the Warm Homes grant, so ask South Derbyshire District Council directly.