.png)
FAQs
Basics of Solar Panels
What is solar PV?
Solar PV (Photovoltaic) is a technology that converts sunlight directly into electricity using solar panels made of photovoltaic cells.
How much electricity is produced by solar panels?
The amount of electricity produced depends on various factors such as the size of the solar system, the amount of sunlight, and the efficiency of the panels. On average, a 4 kW system in the UK can produce about 3,5004,500 kWh annually.
How do solar panels work?
Solar panels work by absorbing sunlight with photovoltaic cells, which generate direct current (DC) electricity. This DC electricity is then converted into alternating current (AC) by an inverter, making it usable for household appliances.
What is a kWp?
kWp stands for kilowattpeak, which is a measure of the peak power output of a solar panel system under standard test conditions. It represents the maximum output the system can produce.
What are solar panels made of?
Solar panels are primarily made of photovoltaic (PV) cells, which are typically composed of silicon. The panels also include a glass cover, a backsheet, and an aluminum frame.
What is an inverter?
An inverter is a device that converts the direct current (DC) electricity generated by solar panels into alternating current (AC) electricity, which is used by household appliances and the grid.
Cost and Savings
How much can I save on my energy bills by installing solar panels?
Homeowners can save up to 5070% on their electricity bills, depending on their energy consumption and the size of the solar system.
Will I still receive an electricity bill after installing solar panels?
​Yes, if you remain connected to the grid, you will still receive an electricity bill. However, it will be significantly lower due to the energy generated by your solar panels.
​What is the payback period for a solar PV installation?
The payback period for a solar PV installation typically ranges from 5 to 10 years, depending on factors such as system cost, energy savings, and available incentives.
How does solar energy increase my property value?
Solar panels can increase property value due to the potential for lower energy bills and the growing demand for energy efficient homes.
Are there any government incentives or grants for installing solar panels?
Incentives and grants can vary by location. In the UK, the Smart Export Guarantee (SEG) allows homeowners to earn money for excess energy they export to the grid.
Installation and Maintenance
How do I get started with a solar panel installation?
Start by contacting a solar provider for a consultation. They will assess your property, discuss your energy needs, and provide a custom solar solution.
Do panels need cleaning?
Yes, panels may need occasional cleaning to remove dust, dirt, or debris that can affect their efficiency.
Will I need to inform the grid?
Yes, you will need to inform your electricity supplier or the grid operator, as they may need to update your metering and ensure your system complies with local regulations.
How long does the installation process take?
The installation process typically takes 13 days, although the entire process including consultation and permitting may take several weeks.
Will my roof be strong enough for solar panels?
Most roofs are suitable for solar panels, but a structural assessment may be needed to ensure your roof can support the weight of the panels.
What if I am concerned about the aesthetic impact?
If aesthetics are a concern, discuss options with your installer, such as integrating panels into roof materials or using less obtrusive designs.
Do solar panels require maintenance?
Solar panels require minimal maintenance, usually just periodic cleaning and an annual inspection to ensure optimal performance.
Do I need planning permission to install solar panels?
In most cases, planning permission is not required for residential solar panel installations, but there may be exceptions for listed buildings or conservation areas.
Solar Systems
What size battery storage system do I need?
The size of the battery storage system depends on your energy usage, the size of your solar system, and whether you want to be fully selfsufficient or just store excess energy.
Can I go offgrid with solar panels and battery storage?
Yes, with a properly sized solar panel system and battery storage, you can potentially go offgrid, but it requires careful planning to meet your energy needs yearround.
How does battery storage benefit my solar panel system?
Battery storage allows you to store excess energy generated during the day for use at night or during power outages, increasing your energy independence.
What’s the difference between gridtied and offgrid solar systems?
Gridtied systems are connected to the utility grid, allowing for both energy import and export. Offgrid systems operate independently of the grid, relying solely on solar panels and batteries.
Can solar panels work on cloudy days?
Yes, solar panels can still generate electricity on cloudy days, although their efficiency is reduced compared to sunny conditions.
Can I run my house off solar panels?
Yes, depending on the size of your solar system and energy consumption, solar panels can power your entire home.
Integration and Future Developments
How do EV chargers work with solar panels?
EV chargers can be integrated with solar panels to charge electric vehicles using solar energy, reducing reliance on the grid and further lowering energy costs.
How can I monitor my solar panel system’s performance?
Solar panel systems can be monitored using online platforms or apps provided by the system installer, which track energy production and system performance.
Can I add an EV charger to my existing solar panel system?
​Yes, you can add an EV charger to your existing solar panel system to take advantage of the solar energy for charging your electric vehicle.
Can I expand my solar panel system in the future?
​Yes, you can expand your solar panel system in the future by adding more panels or upgrading components, depending on your needs and system design.
What happens during a power outage? Will my solar panels still work?
Without battery storage, solar panels will not work during a power outage. With battery storage, your system can continue to provide power during outages.
Do I need to inform my electricity supplier about my solar panels?
Yes, you need to inform your electricity supplier to update your meter and ensure your system complies with local regulations.
EV Charging and Miscellaneous
Do different EVs require different chargers?
Yes, different EVs may require different types of chargers or connectors, but most modern EVs use standard connectors like Type 2 in Europe.
Will EV chargers blow my fuse board?
Properly installed EV chargers should not blow your fuse board. It’s important to have a qualified electrician ensure your electrical system can handle the additional load.
How much is an EV charge point? Are there grants available?
The cost of an EV charge point varies but typically ranges from £400 to £1,000. Grants and incentives may be available depending on your location.
How long will it take to install an EV charger?
The installation of an EV charger typically takes 12 hours, depending on the complexity of the installation and any necessary electrical upgrades.
How much can I charge my neighbour for using my EV charge point?
Pricing for using an EV charge point can vary and should be agreed upon with your neighbour. It can be based on electricity consumption or a flat fee.
General Knowledge
What are the different places solar panels can be installed (besides the roof)?
Solar panels can also be installed on the ground, on carports, or integrated into building facades and awnings.
When was the first solar panel system installed?
The first practical solar panel system was installed in 1954, when Bell Labs developed the first silicon photovoltaic cell.
What is the lifespan of a solar panel system?EV charger to my existing solar panel system?
Solar panel systems typically have a lifespan of 25-30 years, although they can continue to produce electricity beyond this period.
Who invented solar panels?
Solar panels were developed by multiple scientists, but the first practical photovoltaic cell was created by researchers at Bell Labs, including Calvin Fuller, Gerald Pearson, and Daryl Chapin.