All Things Solar
Solar panels are a popular choice for homeowners looking to reduce their electricity bills, decrease their carbon footprint, increase their property value, and improve their energy independence. In this blog, we'll explore these benefits in detail and provide some key information on what materials solar panels are made of, the benefits for homeowners and installation & maintenance.
What are they made of?
Solar panels are typically made up of multiple layers of materials, including:
Photovoltaic cells: The most important component of a solar panel, photovoltaic cells are made of semiconducting materials such as silicon, which can convert sunlight into direct current (DC) electricity.
Glass: The top layer of a solar panel is typically made of tempered glass to protect the cells from damage and weather conditions.
Encapsulant: A layer of encapsulant is applied to the cells to protect them from moisture and other environmental factors.
Backsheet: The back sheet is a layer of material that protects the panel from moisture and other environmental factors.
Frame: The frame provides structural support and protects the edges of the panel.
Wiring: The wiring connects the cells and allows the generated electricity to be collected and transferred out of the panel.
Overall, the materials used in solar panels are designed to be durable, efficient, and able to withstand exposure to sunlight and weather conditions for many years.
The Benefits of Solar Panels for Homeowners
1. Saving Money on Bills & Payback Time
One of the main reasons homeowners choose to install solar panels is to save money on their electricity bills. By generating their own electricity, homeowners can significantly reduce their reliance on the grid and lower their monthly energy costs. In the UK, homeowners with solar panels can save up to £270 per year on their electricity bills, depending on their usage and the size of their system. Additionally, homeowners who are at home all day and have access to the Smart Export Guarantee (SEG) can save up to £610 per year in London, with even higher savings of up to £715 per year possible with a PV diverter.
The payback time for solar panels varies depending on a number of factors, including the size of the system, the cost of installation, and the amount of electricity generated. However, in general, homeowners can expect to recoup their investment in 8 to 10 years. This is a relatively short payback period, especially considering the long lifespan of solar panels.
2. Reducing Carbon Footprint
Another key benefit of solar panels is their positive impact on the environment. By generating electricity from a renewable source, homeowners can significantly reduce their carbon footprint and contribute to the fight against climate change. In fact, a typical 4kW solar panel system can reduce carbon emissions by over 1.5 tonnes per year, which is equivalent to driving a car for over 4,000 miles.
3. Increasing Property Value
Solar panels can also increase the value of a property. A recent survey found that over half of UK homebuyers would pay more for a property with solar panels, with an average increase in value of £2,500. Additionally, solar panels can improve a property's Energy Performance Certificate (EPC) rating, making it more attractive to potential buyers.
4. Improving Energy Independence
Finally, solar panels can improve a homeowner's energy independence. By generating their own electricity, homeowners can reduce their reliance on the grid and protect themselves from future energy price increases. This can provide greater peace of mind and financial stability in the long term.
Solar Panel Installation and Maintenance
1. Size and Space Requirements
The amount of space needed for solar panels depends on the size of the system and the amount of electricity needed. A typical 4kW solar panel system requires around 28 square meters of roof space. It's important to ensure that the roof is strong enough to support the weight of the panels and that there are no obstructions such as trees or nearby buildings that could block sunlight.
2. Angle and Direction
The most efficient angle for solar panels in the UK is around 30 to 40 degrees from horizontal, which allows the panels to capture the maximum amount of sunlight throughout the year. In addition, panels facing south are the most efficient, followed by those facing west and east. North-facing panels are the least efficient, but can still generate a significant amount of electricity.
3. Maintenance
Solar panels require very little maintenance, but it's important to keep them clean and free of debris to ensure maximum efficiency. Panels should be cleaned at least once a year with water and a mild detergent, and any obstructions such as leaves or branches should be cleared away. It's also recommended to have a professional inspect the panels every few years to check for any damage or issues that could affect their performance.
In addition, homeowners should keep an eye on their inverter, which converts the DC electricity generated by the panels into AC electricity for use in the home. The inverter should be kept clean and free of debris, and any issues should be addressed promptly to avoid any downtime.
4. Space Needed for Solar Panels and Optimal Setup
As mentioned earlier, the amount of space needed for solar panels depends on the size of the system and the amount of electricity needed. It's important to ensure that the panels are installed in a location that receives maximum sunlight throughout the day. Panels should be installed at an angle and direction that allows them to capture the most amount of sunlight possible. This will maximise the amount of electricity generated and therefore increase the cost savings for homeowners.
Conclusion
Installing solar panels can provide a wide range of benefits for homeowners, including cost savings, reducing carbon footprint, increasing property value, and improving energy independence. Additionally, solar panels require very little maintenance and have a relatively short payback period, making them a smart long-term investment for homeowners. Homeowners should consider their space requirements and optimal setup when installing solar panels, and should prioritise regular maintenance to ensure maximum efficiency.