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Optimal Site Selection for a Solar Power Plant

Abstract

Primary energy sources are running out due to the increase in electrical energy consumption. Environmental problems caused by primary energy sources are also increasing.

This Solar Irradiance reaches the surface of the earth in two forms, beam radiation (Gb) and diffuse radiation (Gd). The beam component comes directly as irradiance from the sun, while the diffuse component reaches the earth indirectly and is scattered or reflected from the atmosphere or cloud cover.
The total irradiance received on a surface is sum of both the radiations i.e. G(total) = Gb + Gd (beam and diffuse)
Irradiance is a measurement of solar power density and is defined as the rate at which solar energy falls onto a surface. The unit of power is the Watt (abbreviated as W). In the case of solar irradiance we usually measure the power per unit area, so irradiance is typically quoted as W/m² - that is Watts per square meter. The Irradiance falling on a surface can be vary from moment to moment which is why it is important to remember that irradiance is a measure of power density - the rate that energy is falling on an area, not the total amount of energy per area.

Peak Sun Hours (PSH)

Peak Sun Hours (PSH) : the total number of hours per day in which solar irradiance averages 1000 w/m².
The amount of solar radiation, or insolation, delivered by the sun varies throughout the day, based on the sun’s position in the sky, clouds, and other atmospheric conditions.
1. Time of Day: Peak solar radiation occurs at solar noon, when the sun is highest in the sky. The low angle of the sun at sunrise and sunset means that the atmosphere filters the sunlight more and results in less energy being delivered to the earth’s surface.
2. Season: Sun-hours increase during the summer due to the sun’s higher position in the sky.
3. Geography: Solar energy increases near the equator, as it is closer to the sun.
Irradiance : the intensity of solar power measured in watts or kW on one square meter. Irradiance is measured with the instruments is called as Pyranometer.


IST Alumni

It Was Great to Undergo the Training Process of IST and Also The Instructors were Self Motivated and also Encourage an Individual to Grab The Knowledge and Apply in The Practical Life

- SYED FAIZ ALAM,
SR. PROJECT ENGINEER at REC POWER DISTRIBUTION COMPANY LIMITED

The presenter had a very good l knowledge of the solar business in India as well as of Solar Technology so I got some very good ideas that can also apply to my market. Understanding the solar system especially the DC part as well as the whole planing and feasibility process. Coming from an Ac background and working with some solar technologies from time to time I realized that there was so much I had been missing. I am now more confident to tackle the solar market. They helped consolidate the lectures on design as well as appreciate practical aspects of wiring as well as mechanical installation. lST very well structured and comprehensive programme. Excellent investment for anyone wanting to venture into Solar business.

- Isaac Farayi (Zambabwe),
Director at Africa Infrastructure Consultancy

According to me, this was the best teaching institute. Clearing concept with giving different live example, how to convince the client and how to show the positive

- Prashant Wasudevrao Kalbande,
Asst Professor at WCEM, Nagpur



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