e series
Application
Love The Power, Love The Price
*How much energy do we receive from the sun?
Solar energy reaches the edge of the Earth’s atmosphere at a constant rate of about 1370 watts per square metre (W/m2): this is called the ‘solar constant’. Our atmosphere absorbs and reflects part of it, so the maximum amount of power received by Earth’s surface (when the sun is directly overhead on a sunny day) is about 1000 W/m2 (1 kW/m2). This number is also known as “one sun” in technical terms of the PV community and it’s also used in a test condition known as STC to rate solar panels performance.
Some factors that affect the amount of solar power that we receive on a certain location on earth are the area’s latitude, cloudy periods, humidity and atmospheric clarity (smoke, smog and dust).