Yes! Even though solar panels work best in direct sunlight, they still produce energy in cloudy weather. Think of it this way: human eyes work the best in good lighting, but it is still possible to see your surroundings in gloomy rooms or at twilight. That is because there is still some light present to stimulate your vision cells. Without light, you can’t see a thing. Solar panels work in a similar way. They need light particles (photons) to function, and their efficiency depends on the volume of those light particles. The brighter the light, the better your solar panels’ yield will be.

It may come as a surprise that solar panels function best at mild temperatures. The photovoltaic process that solar panels rely on uses light particles (photons) to “knock” electrons (electrical particles) into movement. When an electron moves, it creates energy (voltage). High heat can interfere with this process because heat automatically increases electrons’ energy levels and therefore lessens the effect of the light particles.

No, quite the opposite. Regular rainfall can be helpful for your solar panels, because it washes dust and dirt away. That way, the light strikes a clean surface and the process of making energy isn’t interrupted by a layer of dust.

Solar panels could potentially cover your entire energy consumption. It depends on a number of factors, including the climate where you live, how many solar panels would fit on your roof or in your garden, and your average energy consumption. If your area is partially sunny but has cloudy days, you could also benefit from solar battery systems, which store the energy generated during high-yield days for the rainy ones. To learn how solar panels benefit your personal situation, it is best to speak to a qualified professional. CLICK HERE to request a free roof check and speak to a solar energy expert.

Photovoltaic cells are the small square or rectangular units that make up solar panels. The word “photovoltaic” combines light (“photo”) and electricity (“voltaic,” related to voltage) to indicate how solar panels work

Put simply, solar panels convert sunlight into electricity through a set of chemical reactions. Most photovoltaic cells are made of thin slices of silicon, which are called semiconductor wafers. When light particles hit the solar panels, they do so in the form of small bundles of energy, called photons. When the photons strike the silicon atoms in the wafers – which consist of positively charged protons, neutral neutrons, negatively charged electrons –they dislodge the electrons from the atoms. The electrons move towards the positively charged pole of the cell in order to neutralize the electrical charge, creating an electrical current. This current is connected to your home’s power distribution unit and inverted into voltage.

Until December 2022, the federal tax credit for residential solar is 26%. In 2023, it will go down to 22%, after which it will expire unless extended by Congress. What this means is that 26% of costs associated with the purchase and installation of solar panels will be deducted from your federal income taxes for the year of installation. The federal tax credit only applies for photovoltaic systems installed within the given year.

For more information, see: energy.gov