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There are many factors involved in determining the number of solar panels you need to power your house. Solar companies give some guidelines for an average homeowner on the ideal amount of panels required to power the hot water requirements and electrical appliances in a home. You can determine an average amount of energy usage by looking at previous utility bills. You can also get a rough estimate by multiplying your home’s hourly energy requirement by the peak sunlight hours and dividing that by a panel’s wattage.
A typical home, which is approximately 1,500 square feet, accrues an average of 100 dollars per month on electricity. Such a house will need at least 16 solar panels to completely cover all the electric power needs of such a home.
If, for instance, you are looking to heat water for a family of four, two thermal solar panels will be required.
Difference between Photovoltaic and Thermal Solar Panels
The solar thermal panels are a closed system of tubes that contain a solution that looks just like an antifreeze. Solar thermal panels usually collect solar heat and then transfers it into the hot water tanks. It is advisable that heat pumps and hot water tanks work best with solar energy.
The cells in a photovoltaic solar panel typically generate electrical power by simply converting solar radiation into an electric current. PV cells are made from different materials, which include several types of arsenic, silicon, and selenium.
Factors that Determine the Number of Solar Panels Required
The number of solar panels you need in your house will highly depend on the direction your house is situated. This will affect the number of sunlight hours your house is exposed to, and that has a great effect on the amount of power that can be generated.
Horizon PWR will assess your home and see how much sunlight your house receives in a year. This information will be critical in determining the number of solar panels required to fully power your house.
So, in general, the 16 panels will be able to fully power your house, and you will not accrue any additional utility bills. But then again, every home has different square footage and access to full sunlight so take those into consideration.
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