When PV is made and sold it is rated at STC (Standard Test Conditions) STC: 1000W/m2 (brightness of light about like noon), 25 ̊C (77 ̊F), 1.5AM (Atmosphere Mass spectrum of light) However, in the real world, PV modules operate under different conditions. The best energy production can be observed Read more…
The nameplate on the individual PV modules shall carry the following minimum information: • Name and logo of the original manufacturer or supplier • Type designation and serial number • Maximum system voltage • Rated nominal power (Pmax) at STC (1000 W/m², 25°C cell temperature, and air mass [AM] 1.5 Read more…
Understanding the Efficiency of Solar Modules Solar panels are usually able to process 15% to 22% of solar energy into usable energy, depending on factors like placement, orientation, weather conditions, and similar. The amount of sunlight that solar panel systems are able to convert into actual electricity is called performance, and the outcome determines the solar panel Read more…
Theory The photovoltaic effect is an electrical phenomenon in which light energy is converted to electrical energy. This works on the principle of how semiconductor materials behave when exposed to light. Photons from sun rays are absorbed by the semiconductor crystal which causes an array of free electrons to be Read more…
The COVID-19 had significantly affected the energy sector value chain. The international price for oil and gas has come down to a record low which we have seen in early 1995. The electricity demand has also come down by 20 to 30% due to reduced economic activities during this pandemic Read more…
It is a common misconception to be confused between kW and kWh. Let us break it down one by one. kilo watt kW stands for kilowatt. A kilowatt is simply a measure of power. For example, a 10,000 watt electric shower is often referred to as a10kW shower. However, kilowatt Read more…
Now that we have discussed the difference between power and energy we can better understand where each term is respectively applicable. Let us look at this into more detail with regard to solar energy. Since we know, power × time = energy & solar power × time = solar energy Given Read more…
Time in the early era was always calculated on the basis Sun’s position in the sky. Solar Noon is referred to as the phenomena when the sun is as high in the sky as it will get for the day. Sunchart is revolves around the concept of the Sun following Read more…
Solar Radiation can be classified into two types: Direct radiation also known as “beam radiation” or “direct beam radiation” is used to describe solar radiation travelling on a straight line from the sun down to the surface of the earth. Diffuse radiation, on the other hand, describes the sunlight that Read more…
In any PV system design, it is essential to know the amount of sunlight available at a particular location at a given time. The two common methods which characterise solar radiation are the solar radiance (or radiation) and solar insolation. Solar radiance is an instantaneous power density in units of Read more…