Solar panel Maintenance Service
ensure optimal performance with solar panel maintenance
Excel Energy is one of the leading commercial solar panel maintenance companies. We provide ongoing monitoring and maintenance services to ensure your commercial solar system operates at peak generation.
Regular performance checks and solar panel service help prevent potential issues, ensuring that your business continues to benefit from reliable and cost-efficient energy and prevent it from costing your business thousands.
Excel Energy recommends that preventive periodic inspection and maintenance be carried out every twelve to twenty-four months. Solar PV panels require routine visual inspection for signs of damage, dirt build-up or shade encroachment.
Our routine commercial solar system maintenance service ensures that your system operates safely and efficiently and lasts its entire design life.
Excel Energy only partners with a supply chain that shares our ethos, core values and pure dedication to customer service. We only recommend and install solar commercial premium products built robustly and ethically and with long warranties providing you with the confidence that you’ve made a sound investment in your business’s energy future.
Whether you need an emergency callout or scheduled periodic solar panel maintenance service, our certified, friendly, responsive team is available to deliver a professional service to ensure your solar panel is operating efficiently all year round.
Contact us on 020 3834 9440 to learn more about our commercial solar maintenance packages or to book an emergency callout.
Why is regular solar panel servicing essential?
We design our systems to require very little maintenance so that you can focus on running your business and maintaining the grounds. However, regular solar panel servicing will prolong the system’s life expectancy and ensure optimum performance for as long as possible.
Some key factors that our expert designer takes into consideration when designing a photovoltaic system are:
✅ Solar Mounting rail expansion gaps.
✅ Appropriate walkway skylight protection mesh.
✅ Fall arrest system.
✅ System accessibility and permanent access ladders.
Here at Excel Energy, when a PV system is installed, a trail of design documents is stored for future use to assist with maintenance.
This includes mapping each solar optimiser, string markings physically and on as-built plans, and clear markings of DC cable management runs. At the handover stage, a complete electronic file is provided to the end user.
There are several reasons why you need solar maintenance service:
Extend Lifespan
Regular servicing and maintenance will increase your system’s lifespan as they provide an opportunity for every part of the system to be electrically tested. This means any problems will be spotted, diagnosed and repaired quickly and before they cause further issues with the system. The solar panel service will also include cleaning the parts, which will also prevent damage.
Optimal Performance
Maintenance will ensure that each part of the solar panel system operates safely and performs at its peak efficiency, so you can be confident that the whole system maximises energy production and reduces the risk of problems.
Cost Savings
Services by professionals mean that low-level issues are found quickly and repaired before they become bigger problems, reducing the chance of needing an emergency call-out, which can be expensive and affect operational costs.
Safety
Routine inspections help ensure your commercial solar PV system remains safe for operation and the surrounding environment as they include checking for loose connections, inspecting mounting structures, and ensuring electrical components are functioning properly.
Warranty Compliance
Solar panel and system warranties often require regular maintenance to remain valid. A maintenance package will ensure that you don’t forget to complete a service, so you don’t breach the warranty requirements or terms.
Environmental Impact
By ensuring that your solar PV system runs as efficiently as possible, you can reduce your carbon footprint and promote sustainability.
What Is Included In An Annual solar Maintenance Service?
Our periodic commercial solar panel maintenance services are thorough and aim to find, diagnose and fix any potential problems your system might have. A typical service is split into two parts:
The first part we will inspect and test the energy storage and solar inverters. This will include:
- Checks of AC and DC isolators.
- Checks of DC junction boxes.
- Integrity check of fuses and surge protectors.
- Check performance to ensure energy generation is in line with the design’s simulation.
- Check the Inverters mounting frame.
- Check there is sufficient ventilation of inverters with unobstructed airflow and functioning fans.
- Check there is no moisture getting in the inverters.
- Check for rusting.
- Check screws, bolts and nuts are fixed and have not come loose.
- Check inverter fault log content.
- Check AC voltage at inverters.
- Carry out electrical tests in line with BS7671 Regulations.
- Test DC string circuits.
- Check labelling and signage are present and correct.
- Check the emergency shutdown procedure is visible.
- Check all main connection terminals with a thermal imagery camera.
- Checking the DC connectors are secure, damage-free and away from water.
- Check that cables are supported, where needed, and free from damage.
- Check module clamps are secure and at correct torque level.
- Check for rusting.
- Check the mounting rails to remain secure and undistorted.
- Test insulation resistance on all strings.
- Test strings for VDC and ADC.
- Check integrity of MC4’s.
- Complete a thermographic survey for faulty components and module cells.
- Check DC cable management remains secure and undistorted.
- Run Drone filming to assess for any debris, or damaged solar panels.
Speak to our team to learn more about our commercial solar panel maintenance service options or to book an appointment. Call us on 020 3834 9440.
understanding Commercial Solar Maintenance
Commercial solar PV systems typically require little ongoing maintenance and run productively for many years. However, as with any complex electromechanical equipment, natural wear and tear over the years can result in poorer operational efficiencies, which in turn can result in a poor return on investment. Undertaking periodic preventative commercial solar panel maintenance can ensure that your system delivers optimum solar energy generation performance.
Solar PV panel generators are exposed to the weather, and various faults can develop within their service life span of 25-30 years. If the inverter does not display the energy generated or is not readily accessible to you, a degeneration level meter should be fitted in a prominent position. This then provides an immediate and obvious indicator if the system is not functioning correctly.
We recommend regularly inspecting your solar system equipment, including electrical testing on the inverters, for obvious faults and monitoring production to protect your income and savings.
We advise scheduling professional annual maintenance for your solar PV system. This will catch any missed issues, prevent breakdowns, and help maintain warranties on your equipment.
We can customise a commercial solar panel maintenance package to fit your business needs. Contact us for more details.
comprehensive commercial solar panel maintenance
Excel Energy’s method for commercial solar panel maintenance depends on the type of solar PV system. It will primarily review the potential for faults. Circuit diagrams, design documents, and a technical description of the system are very helpful in this aspect.
Excel Energy is often called to work on solar PV panel systems with little data or specification available, where no design documents are present, and the end user has been provided with very little information about their system. Before we undertake any measurements, a visual check of the PV system is done, particularly the PV generator. Here we will look for mechanical damage and soiling.
The wiring and electrical connections will be checked by our certified engineers for the following faults which can occur and do not trip any fuses and hence lead to dangerous touch voltages or to arcing or fire risk:
✅ Poor or loose wire connections
✅ Earth leakage through insulation faults
✅ Short-circuit through insulation faults
Particular attention is given to mechanical and thermal damage and to wires and insulation chewed by animals (such as rodents). The insulation can also be damaged by UV rays, ageing or over-voltages. All insulation ages over time. An insulation fault can lead to arcing and ultimately could cause a fire.
In Excel Energy’s experience the following causes of system faults or failures can occur, listed according to their frequency:
✅ Fault at the inverter
✅ Loose wiring connection on the MC4’s
✅ Defective string fuses
✅ Defect with a module and hence partial or total failure of a string (bypass diodes or contacts of individual cells in a module)
✅ Defective surge protector
✅ Insulation fault
Before remedying the fault, Excel Energy will check whether fixing the fault is covered by your installation warranty and whether equipment manufacturers’ warranties can be called on (product liability). If this is not the case, a cost estimate for correcting the fault will be proposed. An inspection log will be produced for the re commissioning.
solar maintenance service what we offer
At Excel Energy, we offer a comprehensive solar maintenance service designed to ensure your commercial energy system operates at peak performance. We often service and repair for clients with solar panel systems installed by other contractors. Our range of service solar panels includes regular check-ups, performance monitoring, and emergency repairs to keep your system running smoothly and efficiently.
With regular check-ups, our skilled technicians thoroughly inspect your solar panels, inverters, and wiring to detect any signs of wear or potential issues before they become costly problems. Performance monitoring helps you keep track of your system’s energy production, allowing us to address any inefficiencies or irregularities quickly, keeping you fully operational.
In the case of unexpected malfunctions, our emergency repair service provides prompt support to get your system back online as soon as possible.
Choosing a solar panel service from Excel Energy is both convenient and cost-effective. By investing in regular maintenance, you avoid the hassle and expense of major repairs or replacements down the road. Additionally, our service helps you maximise your energy production, ensuring you get the most from your solar investment.
Trust Excel Energy to keep your solar system performing at its best, providing you with ongoing savings and peace of mind. Contact us today to learn more about our tailored maintenance packages.
the importance of commercial solar maintenance
Regular commercial solar maintenance is crucial for businesses that have invested in solar PV energy to protect their investment and ensure consistent energy production. Solar panels are a long-term asset, and maintaining them helps to maximise efficiency, extend their lifespan, and safeguard your return on investment.
By prioritising commercial solar maintenance, businesses can prevent costly breakdowns or performance drops. Routine inspections allow for the early detection of issues, which can significantly reduce energy output if left unchecked.
Insurance companies now require businesses to provide electrical testing certification for both AC and DC aspects of solar PV and battery storage systems for business.
By choosing regular commercial solar maintenance, businesses can secure and maximise their investment, optimise energy production, and ensure compliance with industry standards, all while enjoying the long-term benefits of renewable energy.
When To schedule your solar panel maintenance service
To ensure your solar PV panel system is running at peak efficiency, we recommend scheduling a professional solar panel maintenance service at least once a year. Regular maintenance optimises performance and helps prevent costly repairs down the line.
However, if you notice any of the following, it’s important to schedule an appointment with our team as soon as possible:
✅ Decreased energy generation.
✅ Unreliable performance or unexpected shutdowns.
✅ Visible damage to the panels or equipment.
✅ Unusual noises or error messages from your inverter.
✅ Irregularities in your monitoring app indicating a problem.
At Excel Energy, we make it simple for businesses to stay on top of their solar panel maintenance.
Whether you need routine service or have noticed any of the above issues, you can easily book a maintenance service online or request a quote through our website.
Don’t wait to keep your solar system operating efficiently by scheduling your next maintenance appointment today.
Need help now? Call us at 020 3834 9440 for immediate assistance.
Why Choose Excel Energy?
Experience and Expertise
Range of Industries
We work across a range of sectors, including medical manufacturing, factories and warehouses, farming and agriculture and manufacturing facilities. This means we have a deep understanding of how a solar system might be supporting your operations, facilitating our diagnosis process.
Quality Customer Service
Comprehensive Services
We offer comprehensive services that include bespoke designs and installations of commercial solar PV panels, energy storage solutions and EV charging ports. Not only does this mean you can keep all of your solar power needs with one company, but it also means that our teams have unparalleled knowledge about how a solar system works, which they can use to diagnose a problem.
Call our team on 020 3834 9440 to discover more about our maintenance services.
