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Solar PV faqs
Whether you’re planning on installing solar in your property, or simply curious about how solar PV works - we’ve put together a list of the most frequently asked questions regarding solar PV panels.

Solar PV FAQs

What does PV in solar stand for?
The ‘PV’ in Solar PV stands for ‘Photovoltaic’. A Photovoltaic module is what absorbs light energy from the sun and converts it into usable electricity.
What is Solar PV?
Solar PV panels generate free, renewable electricity from daylight. They effectively convert sunlight into energy we can use to power our homes and buildings.
How does Solar PV Work?
Solar PV panels consist of cells that convert sunlight into DC electricity. This electricity is fed through an inverter, which converts it into usable AC electricity.
What’s the cost of solar panels in the UK?
Currently, you can expect to pay between £5000 and £9000 for a domestic solar PV system. This price varies based on property type, roof access, and the size of the solar array.
What size Solar PV system do I need?
Solar PV systems come in a range of sizes - from just a few panels to an array that covers the entire roof. The overall size of your solar array will depend on three things: available space, annual electricity usage, and budget.
On average, a three-bedroom home will use around 2,900 kWh of electricity annually. The most common setup for a typical three bedroom house would be a 3.5kW solar system, which equates to 10 panels
To obtain a quote for your home or business, click here. Our experts will help you decide on the most efficient solar panel system that meets your usage and budget requirements.
Will solar panels power my whole house?
This depends on your household energy usage and the number of solar panels installed, but the answer is probably not.
They will however reduce your energy consumption from the grid, and an optimal solar setup may produce enough to power your whole house for hours or days at a time alongside a battery storage system - especially during the summer months. 
It’s worth noting that a battery storage system is required in order to use the energy later - otherwise electricity generated from solar must be used as soon as it’s generated, or it will be sent back to the grid.
How much money will solar panels save?
No matter the scenario or setup, solar panels are almost guaranteed to save you money on your electricity bills. Of course, the amount of money you save depends on utility rates, the size of your solar system, and the weather conditions.
If a battery storage system isn’t installed, you’ll save far more money by using electricity during daylight - when the solar panels are generating electricity. You can take advantage of the free electricity by setting appliances (dishwashers, washing machines, etc.) to run throughout the daytime.
If you make enough electricity through your solar panels, you are able to sell electricity back to the grid and get paid for the excess electricity you produce.
How much does the electricity from solar panels sell for in the UK?
Large energy companies in the UK will pay for the renewable energy exported to the grid from solar panels. On average, households make between £60 and £150 per year from this scheme. This is on top of any existing savings from reduced electricity bills.
If you’re looking for more information about solar panels or other ways to save energy in your home, get in touch with the Energy Efficiency team at City Plumbing. As experts in renewable technology, we’re perfectly placed to provide the best low-carbon solutions to help you create a greener and more energy-efficient home.
Solar Kit Builder | City Plumbing

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