How Solar Energy Works

Star Voltage > How Solar Energy Works

Solar power is the cleanest source and most reliable renewable energy. It can be used in several ways to power houses and businesses. Photovoltaic(PV) panel convert sun rays in to electricity by exciting electron in silicon cells using the photons in the ray of light from Sun. The electricity is used to supply renewable energy in homes and businesses.

Parts of Solar Energy Production

  1. Solar Panels – also known as solar modules, contains photovoltaic cells made from silicon that transforms sunlight into electricity.
  2. Inverter – turns the DC electricity generated by the solar panel to 120 volt AC that can be immediately used by connecting the inverter to a dedicated circuit breaker in the electrical panel.
  3. Net Meter – a solar incentive that allows you store energy in  the electric grid when the solar panels produce more electricity than you need, that energy is sent for credits.

Factors that affect the Solar Electricity Production

  1. Shade – solar panel won’t produce the right amount of energy if it’s not receiving enough sunlight that is caused by the shadow of the trees of huge buildings.
  2. Season or Weather – Solar Energy production varies from day by day and month by month production of sunlight. Weather plays a huge role in the production of solar energy. Sunny days produce a large amount of solar energy while winter or rainy days produce less since not enough sunlight is being received by the solar panels.
  3. Tilting – The Ideal Tilt or Ideal the angle for the solar panel to receive a proper amount of sunlight is between 30 to 45 degrees facing the sun.
  4. Azimuth – The solar azimuth angle6 is the compass direction from where the sunlight is coming. At noon, the sun’s light comes from the south in the Northern Hemisphere and from the north in the Southern Hemisphere. The wrong azimuth angle could reduce the energy output of a solar home panel by up to 35%. An azimuth of zero (facing the equator) is usually the best choice.