Solar Panel Installation in Mevagissey

Mevagissey sits on a south-facing hillside above its twin harbours — a natural solar receiver. Annual irradiance of 1,302 kWh/m² is slightly above the Cornwall average, and properties on the upper slopes have unobstructed exposure from mid-morning through to late afternoon. Even in the conservation area, there are more viable roof aspects than most property owners expect.

What the planning rules actually mean here

The conservation area covers the historic harbour. Panels on listed buildings visible from public areas require Listed Building Consent — but many Mevagissey cottages have rear roofscapes that face south and are not visible from the street or harbour. Panels installed here are typically permitted development. We carry out a planning assessment at the free survey stage for every conservation area property — no cost, no commitment.

Properties in Portmellon, the surrounding farming hamlets, and any 20th-century homes on the village periphery (common on the roads toward Gorran Haven and St Austell) have no conservation constraints and are completely straightforward installations.

The solar + heat pump combination

For the majority of Mevagissey properties switching from oil to a heat pump, adding solar at the same project makes strong financial sense. The heat pump draws most of its electricity in the shoulder seasons (spring and autumn heating runs) and in summer for hot water. These periods align well with Cornwall's solar generation profile. A 5kWp system covering the roof of a typical Mevagissey cottage can cover 40–60% of the heat pump's annual electricity consumption.

Holiday let owners particularly benefit: summer solar generation coincides precisely with peak letting occupancy and electricity consumption. Contact us for a combined solar and heat pump quote.