Solar PV
How Solar Photovoltaic Panels Work
Photovoltaic systems convert sunlight into electricity using solar cells made from semiconductors such as silicon. These cells absorb sunlight and generate an electric current. Multiple cells form a solar panel, panels connect to form an array, and together with cabling, brackets, and an inverter, the complete solar PV system is created.
The inverter converts generated electricity into usable power for your home or business.
From Solar Cells to Electricity
Solar panels consist of connected solar cells arranged within a protective frame. When sunlight hits the cells, electrons move, creating an electrical current that powers appliances and lighting.
Benefits of Installing Solar Panels
Simple, long-term advantages that improve running costs, home value, and sustainability.
Electricity all year round
Generate clean, emission-free electricity with systems lasting over 25 years.
Increase property value & earn income
Sell surplus electricity through SEG and improve home market value.
Reduce carbon footprint
Lower harmful emissions and support sustainability.
Types of Solar PV Systems
Grid-Connected Systems
Connected to the national grid. Excess electricity is exported, and additional power is drawn from the grid when needed.
Stand-Alone Systems
Operate independently using solar battery storage. Ideal for remote locations but higher in cost due to batteries.
Solar Battery Storage & Thermal Panels
Solar Battery Storage
Solar batteries store excess electricity generated during the day, allowing you to use it in the evening or at night. Battery storage can be installed with both grid-connected and stand-alone systems.
Solar Thermal Panels
Solar thermal panels use sunlight to heat water stored in a cylinder for domestic hot water and space heating. These roof-mounted panels use pipes instead of solar cells. Thermodynamic panels are a related technology that extract heat from ambient air.
What Affects Solar Panel Efficiency
Location, Angle & Direction
South-facing roofs with a tilt of around 34° provide optimal performance in the UK.
Roof Suitability
Roofs must be structurally sound and large enough. A typical 4kW system requires around 29 m² of space.
System Size
Larger systems generate more electricity. Monocrystalline panels offer higher efficiency and require less roof space.
Solar Panel System Sizing
4kW system ≈ 16 panels (250W each)
5kW system ≈ 20 panels
System size depends on electricity usage, roof size, energy goals, and local sunlight levels.
Solar Panels & Property Value
Solar panels increase energy efficiency, making homes more attractive to buyers. Reduced electricity bills and long-term savings add value, although the impact varies by household usage and system size.
UK Solar Panel Grants
Planning Permission & Insurance
Why Power Your Business with Solar
Solar energy helps businesses cut operating costs, protect against rising energy prices, generate revenue from incentives, and demonstrate commitment to sustainability.
Start Your Solar Journey with AEG Construction
Take the first step towards clean, cost-effective energy. Our experts will assess your property, explain funding options, and help you make the most of solar.
