Solar PV continues to grow in popularity as more homeowners look for ways to cut energy bills and reduce their carbon footprint. If you are considering solar panels for your property, it is natural to have questions about performance, maintenance, installation and long-term savings. This expanded Solar PV FAQ guide provides clear, helpful answers to the most common queries so you can make a confident and informed decision.

Common Solar PV Questions
How Does Solar PV Work?
Solar PV systems capture daylight through photovoltaic cells that are layered inside each panel. When light hits these cells, a flow of electrons is created which generates direct current. This current is sent to an inverter, which converts it into alternating current suitable for powering your household appliances.
Once your system is running, the electricity produced is automatically used within your home first. If your panels generate more than you need, the extra energy can be exported back to the grid, depending on your tariff. This makes the system efficient, environmentally friendly and straightforward to operate without constant supervision.
Will Solar Panels Work On Cloudy Days?
A common misconception is that solar panels only work in direct sunlight. In reality, they perform well even on cloudy days because they react to daylight rather than heat. While output is slightly reduced during overcast conditions, panels will still produce useful amounts of electricity throughout the year.
Brighton and Hove have consistent daylight hours, making Solar PV an effective option for many homes. Even in winter, panels continue generating energy which can help offset your electricity usage and keep your running costs down.
How Much Maintenance Is Required?
One of the advantages of Solar PV is that it requires very little day to day maintenance. There are no moving parts, which reduces the chances of mechanical failure. Most systems simply need the panels to be kept clear of heavy dirt or debris to maintain efficiency.
It is sensible to arrange occasional inspections to check the inverter, wiring and mounting systems. Inverters typically need replacing after 10 to 15 years, which is one of the few lifetime costs associated with Solar PV. Regular checks ensure everything is functioning correctly and help keep your system performing at its best.
What Affects The Performance Of Solar PV?
Several factors influence the efficiency of your solar panels. Roof orientation plays a major role, with south-facing roofs usually delivering the highest output. Panel angle, shading from nearby structures, and changes in daylight across the seasons also affect generation levels.
A professional assessment will calculate how these factors apply to your home. During the design stage, installers look at panel placement, available roof space and the expected annual output. This ensures your system is tailored to your property and set up for optimum performance.
Can Solar PV Reduce My Energy Bills?
Solar PV can make a noticeable difference to energy bills, particularly if you use appliances during the day when the panels are generating power. The more daytime electricity you consume directly from your system, the bigger your savings become.
If you combine your Solar PV system with battery storage, even more savings are possible. Excess energy generated during the day can be stored for evening use, reducing your reliance on the grid. Over time, this combination can significantly cut your electricity costs and provide greater energy independence.
How Long Do Solar Panels Last?
Solar panels are built for long-term use and typically come with warranties of 20 to 25 years. Many panels continue performing well beyond that period, often producing electricity for 30 years or more.
While the output slowly reduces as panels age, the decline is usually gradual. Most homeowners enjoy decades of reliable, low-maintenance energy production, making Solar PV a strong long-term investment for Brighton and Hove properties.
What Is The Typical Installation Process?
The installation process starts with a technical survey where an engineer assesses the roof structure, available space and potential shading. This helps determine the most efficient layout for your panels and ensures the system is safe and compliant with all regulations.
Once the design is finalised, installation usually takes one to two days depending on system size. Mounts are fitted to the roof, panels are secured in place and the inverter is connected to your electrical supply. The system is then tested thoroughly before being handed over. Most homeowners find the process quick and minimally disruptive.
How Much Roof Space Do I Need?
The amount of roof space required depends on how many panels you want and how much electricity you hope to generate. A typical residential system needs between 15 and 25 square metres of clear roof space. The survey stage will identify whether your roof is suitable and how much generation you can expect based on the available area.
Do Solar PV Systems Add Value To A Property?
Solar PV can make a property more appealing to buyers by reducing long-term running costs. Many homeowners see Solar PV as a modern, future-focused upgrade. As energy prices continue to rise, having an efficient renewable system already installed can be a strong selling point.
Solar PV Installations In Brighton And Hove
Resistance Electrical provides reliable Solar PV installations, surveys and support for every home. Our team offers clear guidance, efficient system design and quality workmanship on every installation. Call 07935923323 or complete our contact form to arrange a consultation and explore the benefits of Solar PV for your home.
