Why a Yearly Plan Makes Sense in the South West

The South West is a wonderful place for solar power, but it is not a gentle environment for roof-mounted panels. Coastal properties in Cornwall and Devon face salt spray, while inland homes in Somerset, Dorset, Wiltshire and Gloucestershire deal with pollen, tree sap, moss and plenty of rain. Rain alone does not clean panels; it often leaves behind a film of grime that reduces output. A written yearly care plan keeps cleaning, inspection and minor repairs on track. It also helps you spot small issues before they become expensive ones. Whether you have a domestic array or a commercial roof, the principle is the same: work with the seasons rather than reacting to problems.

Spring: Clear the Winter's Debris and Check for Shading

Spring is the ideal time to undo winter's work. Storms will have blown debris onto roofs, and moss or lichen may have loosened. Before the long days of summer, give the system a thorough once-over.

• Inspect from the ground first. Use binoculars to look for cracked glass, slipped panels, loose cable clips or build-ups of leaves and twigs.
• Clean carefully if needed. Use a soft brush and deionised water. Avoid abrasive pads, harsh detergents or high-pressure washers, which can damage coatings and seals.
• Check for shading. Trees and shrubs grow quickly in spring. Even a thin branch across one panel can drag down the performance of the whole string.
• Test the inverter and isolators. Confirm that error codes are clear and that the system is exporting as expected.

Summer: Focus on Cleaning and Peak Performance

Summer brings the highest generation, so dirty panels cost you more now than at any other time. Pollen, dust, bird droppings and coastal salt all block sunlight. Clean early in the morning or late in the evening when panels are cool; never scrub a hot array, as thermal shock can crack glass.

• Residential cleaning: aim for every six to twelve months. If you live near the coast, under trees or in an area with heavy gull activity, clean every three to four months.
• Commercial cleaning: quarterly checks are often sensible for larger roofs, especially where air conditioning units, flues or nearby trees create grime.
• Bird-proofing: summer is a good time to fit mesh or clips if gulls and pigeons are roosting under the panels.
• Monitor output: compare monthly generation with previous years. A sudden drop often means dirt, shading or a faulty component.

Autumn: Prepare for Storms, Leaves and Lower Light

Autumn is a turning point. Days shorten, leaves fall and Atlantic weather systems gather strength. Use this season to prepare rather than repair.

• Book a pre-winter inspection. Check mounting brackets, rail fixings, cable ties and the roof covering around the panels.
• Clear leaves and debris. Gutters and valleys can overflow, sending water under the array. Keep them clear where it is safe to do so.
• Trim overhanging branches. Do this before the worst winds arrive, but never lean a ladder against the panels themselves.
• Check battery and monitoring systems. For homes with storage, confirm that settings match shorter, darker days. For businesses, test backup power and alert systems.

Winter: Monitor, Repair and Stay Safe

Winter is not the time for risky roof work. Ice, frost and wet tiles make falls far more likely. Focus on safe monitoring and minor tasks at ground level.

• After every storm, look for missing panels, cracked glass, loose frames or dangling cables. If anything looks unsafe, keep people away and call a professional.
• Clear snow carefully. Use a soft broom or roof rake from the ground if you can. Never pour hot water on panels and never climb onto a frosty roof.
• Log inverter errors. A brief fault may reset itself, but repeated errors need attention from a qualified electrician.
• Make minor repairs. Replacing a cable clip or a section of bird mesh is manageable for a competent DIYer. Electrical work and roof access are not.

Keeping Records and Knowing When to Call a Professional

A simple notebook or spreadsheet is enough. Record the date of each clean, the method used, any damage spotted, inverter readings and output figures. This history makes it much easier to see whether a change is weather-related or a genuine fault. It also helps when you sell a property or review a commercial energy contract.

For businesses, assign one person to own the plan. Diarise quarterly visual checks and annual professional inspections. For homes, set a reminder for spring and autumn. If your roof is steep, your panels are hard to reach, or you are unsure about wiring, isolation or structural fixings, bring in a qualified solar maintenance specialist. They can clean safely, test performance and carry out minor repairs before a small issue becomes an unexpected bill. A little seasonal planning keeps your system generating reliably through every South West season.