Solar Panels

Solar panels harness the sun’s energy to generate usable electricity.

They consist of photovoltaic (PV) cells made of semiconducting materials, usually silicon, that absorb photons from the sun and release electrons. This generates an electrical current that can be utilized to power residential and commercial properties.

The inverter transforms the direct current electricity generated by the panels into the commonly used alternating current electricity for homes and businesses. The AC electricity is then sent to the electrical grid or stored in batteries for later use.

Overall, solar panels work by taking advantage of the photoelectric effect, where light is converted into electrical energy, to produce clean and renewable electricity from the sun.

Solar panels offer many benefits, including:

• Clean and Renewable Energy Source
• Cost Saving Investment
• Increased Energy Independence
• Increased Property Value
• Low Maintenance

Solar panels for usage in homes refer to photovoltaic (PV) systems designed for residential properties. These systems typically consist of solar panels, an inverter, wiring and mounting hardware, and are usually installed on the roof or other suitable area of the home.

“Solar panel systems do not come with batteries; however, it is possible to purchase a battery backup solution separately. While the general function of solar panels is to use the electricity as it is generated, solar batteries store the power your panels have produced during the day so you can use it later. Solar batteries are very useful in times of power outages or rainy weather and during the night time when solar panel system cannot produce electricity.

• On-grid solar systems
• An on-grid or grid-tied solar system works along with the grid. This means that any excess or deficiency of power can be fed to the grid through net metering.
• An ideal solution to reduce the bill
• Off-grid solar systems
• An off-grid solar system permits electricity to be harnessed by solar panels and stored inside a battery without a direct connection to the utility grid, providing an independent power supply to your home or business.
• Ideal for power cuts
• Hybrid solar systems
• A hybrid solar system is when your solar panels remain connected to the grid’s power lines and have a backup battery system to store excess power.
• while reducing the bill, this solution will save you from power cuts

Solar panels generate electricity from daylight which is free of course and therefore cut your energy bill.  However, you are still likely to get an electricity bill with solar panels owing to a variety of factors such as battery storage efficiency, cloudy or rainy days, and so on. Even if you were to receive an electricity bill, it is guaranteed that the average cost of your electricity bill will decline upon the installation of solar panels.

The running cost of solar panels is relatively low, as they require very little maintenance. Apart from the initial cost for the installation of the solar panels, several running costs are likely to incur during the timespan, such as solar panel maintenance and cleaning costs, and insurance for the solar panel system.

It is estimated that a typical home requires between 8 to 12 solar panels to cover 100 percent of its electricity usage.

The actual number of panels you will need to install depends on factors including your geographic location, panel efficiency, panel-rated power and your personal energy consumption habits.

A hybrid solar system connects to the grid like a normal solar system but also includes a backup battery. During the day your panels power your home and charge the battery; any extra power can go to the grid through net metering. When there’s a power cut, the battery keeps your essential items running.

An on-grid system works only while the grid is up and switches off during a power cut. An off-grid system runs entirely on solar and battery with no grid connection. A hybrid system gives you the best of both grid savings through net metering plus battery backup during outages, including at night.

It comfortably powers essential loads such as lights, fans, refrigerators, televisions, routers and laptops. It can be sized to also support higher-demand items like air conditioners and water pumps tell us what you need to run and we’ll design the system to match.

Yes. You use your own solar power during the day instead of grid electricity, and send extra power to the grid through net metering, which reduces your bill. The battery lets you use stored solar power in the evening rather than buying it from the grid.

It depends on the battery size and how much you’re running. A system sized for essential loads can keep them going through a typical power cut and overnight. We’ll recommend a battery capacity based on the backup time you want.

For homes and businesses that experience power cuts, a hybrid system is popular because it protects you from outages while still lowering your bill. If you rarely have outages and only want bill savings, a standard on-grid system may be more cost-effective our team can advise based on your needs.

Yes. As Sri Lanka’s No.1 solar EPC provider, Hayleys Solar handles the full process design, financing options, installation, and after-sales service and maintenance for residential, commercial and industrial systems.