Inter-comparability of solar radiation databases in Indian context

Purohit I & Purohit P (2015). Inter-comparability of solar radiation databases in Indian context. Renewable and Sustainable Energy Reviews 50: 735-747. DOI:10.1016/j.rser.2015.05.020.

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Abstract

Solar radiation resource assessment is one of the most important exercises towards implementation of large-scale solar power projects. The quality of resource makes significant impact on the selection of technology to be used at a specific location for solar electricity generation. In this study, inter-comparability of several solar radiation databases (i.e. ground, satellite and statistical) is assessed in Indian context. The long-term measured Global Horizontal Irradiance (GHI) over 23 representative locations is compared wih the GHI obtained from satellite and weather databases. Direct Normal Irradiance (DNI) is estimated through long-term measured global horizontal and diffuse irradiance using basic sun-earth geometry and compard with the DNI obtained from different solar radiation and weather databases. It is observed that with respect to long-term measured data of GHI the average range of deviation varied from 0.20% to 22.53% whereas DNI varied from 0.64% to 35.12% across select locations. Impact of the variation due to solar radiation resource assessment on the annual electricity generation and levelized cost of electricity of grid-connected solar power projects is also underlined.

Item Type: Article
Uncontrolled Keywords: Solar radiation; global horizontal irradiance; direct normal irradiance; solar electricity
Research Programs: Mitigation of Air Pollution (MAG)
Air Quality & Greenhouse Gases (AIR)
Bibliographic Reference: Renewable and Sustainable Energy Reviews; 50:735-747 (October 2015) (Published online 31 May 2015)
Depositing User: IIASA Import
Date Deposited: 15 Jan 2016 08:53
Last Modified: 04 Apr 2016 10:17
URI: http://pure.iiasa.ac.at/11445

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