Solar in Devizes & Marlborough

Devizes and Marlborough are both significant Wiltshire market towns with distinct characters — Devizes as a traditional agricultural and market centre, Marlborough as a prosperous town on the edge of the downs with a prestigious school and strong retail economy. Both sit in areas of high solar potential, and both have specific planning environments that reward working with an experienced local installer.

We cover the full SN10 (Devizes) and SN8 (Marlborough) postcode areas from our base in Broughton Gifford. Devizes is approximately 8 miles away; Marlborough is 16 miles — both well within our regular weekly installation areas.

Devizes benefits from good solar potential, with approximately 970–990 kWh/kWp of annual irradiance. The town's position on slightly elevated ground compared to the Vale of Avon means good south-facing horizon exposure for many properties. A 4kW south-facing system typically generates 3,880–3,960 kWh per year, saving £930–£1,110 annually at current electricity prices.

Devizes has a conservation area covering its medieval core and market place. Planning considerations:

• Devizes Conservation Area: Rear-slope installations are generally permitted development. Front-facing panels visible from a highway require planning permission. Many Devizes properties have excellent south-facing rear slopes suitable for installation within the conservation area.
• Listed buildings: Devizes has a significant number of listed buildings, particularly around the market place and in the town centre. Listed Building Consent is required. We can advise on the likelihood of approval for your specific property.
• Roundway and residential estates: The post-war and modern residential areas around Roundway and the town's periphery are generally straightforward permitted development installations, with good roof aspects and no additional planning requirements.

For more on Devizes specifically, visit our Devizes location page for local customer reviews and recent case studies.

Marlborough and the surrounding villages — Pewsey, Ramsbury, Great Bedwyn, Hungerford (just across the West Berkshire border) — sit within or adjacent to the North Wessex Downs National Landscape (formerly AONB). This designation provides additional context for solar installations without creating absolute restrictions.

The good news: solar panels remain permitted development in the North Wessex Downs National Landscape for the majority of residential applications. The key conditions — not protrude more than 200mm above the roof, not exceed the roof height — apply as standard. The additional restriction in AONBs is that panels on a wall forming the principal or side elevation visible from a highway are not permitted development. For most properties with a pitched roof, this does not affect the main installation area at all.

Marlborough itself has a conservation area and numerous listed buildings. The town's distinctive wide high street, Georgian architecture, and Victorian residential streets all require individual assessment. All-black panels are strongly recommended for Marlborough heritage applications. In-roof systems may be required or preferred for front-facing installations on listed buildings.

For a full guide to the North Wessex Downs rules, see our North Wessex Downs solar guide. For more on visit our Marlborough location page.

Battery storage makes particularly strong financial sense for rural properties in the Devizes and Marlborough areas. Rural locations often have less reliable grid connections — battery storage provides resilience during outages. Rural households also tend to have higher energy consumption (larger properties, oil-fired heating supplemented by electric, more outdoor power demand) and often have better south-facing roof aspects with less shading from adjacent buildings.

The combination of a 4–5kW solar array and a 10kWh battery can cover the majority of a rural north Wiltshire household's electricity needs from spring through autumn, reducing grid dependence significantly even through winter. See our battery storage guide and battery cost guide for full detail.