Keep Your Solar Investment Performing at Its Best
Solar PV systems are designed for decades of reliable, low-maintenance operation, but they aren't entirely maintenance-free. Like any sophisticated piece of equipment, regular professional servicing helps to identify minor issues before they develop into expensive failures, ensures your system continues generating at peak efficiency, and protects the validity of your manufacturer warranties. At Nova Volt Solar, our maintenance service is designed to give Manchester homeowners and businesses complete peace of mind that their solar investment is working hard for them year after year.
The grimy reality of British weather means that even well-installed solar arrays gradually accumulate dirt, bird droppings, moss, lichen, and pollution that reduce their generation output. Combined with the inevitable wear and tear on electrical components, mounting hardware, and inverters, this can lead to a steady decline in system performance that often goes unnoticed until energy bills mysteriously start creeping up. Our maintenance programmes are designed to prevent this gradual degradation and ensure your panels continue generating the maximum possible electricity throughout their working life.
What's Included in Our Annual Service
Our standard annual maintenance service includes a comprehensive inspection of every aspect of your solar PV system. We test, measure, document, and report on the entire installation, providing you with a detailed condition report after each visit so you have a complete record of your system's history.
Visual Inspection of Solar Panels
Our engineers begin by carefully inspecting every solar panel for visible signs of damage, including micro-cracks, hotspots, cell discolouration, delamination, and burnt back-sheets. We also check the panel mounting frames for corrosion or loosening, and inspect the rubber seals around junction boxes to ensure they remain weathertight. Even minor damage that's caught early can often be resolved under warranty, saving thousands of pounds in replacement costs.
Electrical Testing and Performance Verification
Using calibrated test equipment, we measure the open-circuit voltage and short-circuit current of each panel string and compare these against the manufacturer's specifications. Significant deviations may indicate failing cells, faulty connections, or shading issues that have developed since installation. We also use a clamp meter to verify that all panels in a string are generating consistent currents, identifying any underperforming modules that might benefit from cleaning, replacement, or optimiser fitment.
Inverter Inspection and Cleaning
The inverter is the brain of your solar system, converting DC electricity from the panels into AC electricity for your home. We download the inverter's performance log to identify any error codes, fault events, or unusual generation patterns since the last service. The inverter is then physically inspected for signs of overheating, fan failures, or capacitor swelling, and the cooling vents are cleared of any dust accumulation that might restrict airflow.
Earthing and Bonding Checks
Proper electrical earthing is critical for both safety and performance. We test the resistance of all earth bonds, verify that all metallic components are properly bonded together, and check that surge protection devices are in good working order. This is particularly important after thunderstorms, when nearby lightning strikes can degrade surge protection without causing immediately obvious damage.
Mounting System Inspection
Strong winds across Greater Manchester can place considerable stress on solar panel mounting systems. We inspect every roof anchor, rail clamp, and panel clip for signs of movement, corrosion, or loosening. We also check that flashing kits remain properly sealed, preventing water ingress that could damage your roof structure over time.
Professional Solar Panel Cleaning
Dirty solar panels can lose 5-25% of their generation capacity, depending on the level of soiling. While rainfall washes away light dust, more stubborn contamination — including bird droppings, pollen, salt deposits, and lichen growth — requires professional cleaning to remove. Our specialist cleaning service uses purified water (which dries to a streak-free finish) applied with soft telescopic brushes that won't scratch the delicate anti-reflective coating on your panels.
For most domestic systems in Manchester, we recommend professional cleaning every 12-24 months. Properties near busy roads, agricultural land, or coastal areas typically need more frequent cleaning due to higher levels of pollution and salt-laden moisture. Commercial systems in industrial areas often benefit from quarterly or bi-annual cleaning to maximise generation.
Why Regular Maintenance Matters
The financial case for regular solar maintenance is compelling. A typical 4kW domestic system in Manchester generates around 3,400 kWh per year, worth approximately £1,000-£1,200 in displaced grid electricity at current prices. Even a 10% loss of performance through poor maintenance equates to over £100 in lost annual savings — far more than the cost of an annual service. Over the 25-year design life of a typical system, regular maintenance can easily pay for itself many times over through preserved generation and avoided major repairs.
Beyond the financial benefits, regular maintenance also protects your warranty entitlements. Most major solar panel manufacturers require evidence of regular inspection and maintenance to honour their performance warranties. Without this documentation, you may find yourself unable to claim against legitimate manufacturing defects that emerge years after installation.
Maintenance Plans to Suit Every Property
We offer flexible maintenance contracts tailored to the size and complexity of your installation. Our standard residential plan includes an annual service, priority callout for any faults, a 10% discount on parts, and free remote monitoring. Commercial maintenance contracts typically include quarterly inspections, comprehensive electrical testing, and 24-hour emergency response for business-critical systems. We also offer one-off services for customers who prefer pay-as-you-go arrangements.
Trusted Solar Maintenance Across Manchester
Whether you're an existing customer of Nova Volt Solar or your system was installed by another company, we're happy to take over your maintenance requirements. Our engineers work on systems from all major manufacturers and are familiar with virtually every inverter brand currently in use in the UK. We hold full public liability insurance, are working-at-height certified, and use only RoSPA-approved equipment. Contact us today to discuss your maintenance needs.
