For all climatic zones, vertical fenestration compliance requirements for all three incremental energy efficiency levels, i.e. ECBC, ECBC+, and SuperECBC, shall comply with the following: (a) Maximum allowable Window Wall Ratio (WWR) is 40% (applicable to buildings showing compliance using the Prescriptive Method, including Building Envelope Trade-off Method) (b) Minimum Read more…
China’s imports have come recently into the spotlight because of the Indo Chinese geopolitics and conflict on the Doklam Valley. While Indian government has already imposed safeguard duty of the order of 20% on solar PV modules and cells. Be safeguard duties ending by end of July 2020 and as Read more…
SHGC and Shading coefficient are both terms used for fenestration of a building. They are used to describe properties of a glass while determine solar heat gain through a window. Solar Heat Gain Coefficient (SHGC) The Solar Heat Gain Coefficient (SHGC) is the percent of solar energy incident on the 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…
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…
The patented SunEye-210 is the world-leading shade measurement tool for solar site assessment. This hand-held electronic tool measures the available solar energy by day, month, and year with the press of a button by determining the shading patterns of a particular site. Working The Solmetric SunEye makes accurate shading analysis 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…