Cornwall’s housing is varied and often old. Camborne, Redruth and St Austell have long rows of stone terraces from the mining and clay years, with modest roofs that face whichever way the street runs. Truro’s Georgian centre around Lemon Street is a conservation area, while the newer estates at Threemilestone and Langarth have plain modern roofs. Falmouth, Newquay and St Ives add salt air, so fixings and connectors are specified for the coast and inverters kept indoors where possible. Along the coast, solar yield is around 950 kWh per kWp a year (PVGIS).
Planning goes through Cornwall Council. More than a quarter of the county is in the Cornwall National Landscape, formerly the AONB. Parts of the old mining landscape are a World Heritage Site. The network operator is National Grid Electricity Distribution. Many villages are on long overhead lines exposed to Atlantic storms, which is where a battery with backup is worth asking about. Cornwall is more than 90 minutes from Ferndown, so the first survey is usually a video call, then a site visit. The design, installation and warranties are the same as in Dorset.