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Impact of PV system orientation angle accuracy on greenhouse gases mitigation

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journal contribution
posted on 2021-02-01, 00:00 authored by W Ahmed, J A Sheikh, S Ahmad, S H Farjana, M A Parvez Mahmud
Sun, a free source of energy, has moved the world to consider photovoltaic (PV) system as green renewable energy since fossil fuel power plant accounts for a significant share of greenhouse gas (GHG) emissions across the globe. The output of the PV system is limited to many factors; however, the acute accuracy of orientation (tilt and azimuth) angles exposes the PV surfaces to high doses of solar radiations. Which increases the PV system output; in turn GHG mitigation potential. This paper draws a relationship between accuracy of orientation angles impact on PV system's GHG mitigation potential. For reference, the accuracy of orientation angles in Pakistan's Capital increases the annual average daily solar radiations level from 4.02 (horizontal surface) to 4.39 (−33.6 tilt and 180 azimuth) kWh/m2/d. Accuracy of orientation angles on multiple end energy users (equivalent to 1 MW) PV system has potential to avoid additional 65.1 and 22.6 tonnes of CO2 equivalent and production of 158987.13 and 55,120.1 kW h compared with a same size PV system with horizontal surface and 33.6 tilt angle (equivalent to location's latitude), respectively. PV system orientation angles accuracy has the potential to avoid tonnes of GHG emissions without any investment, operation and maintenance costs.

History

Journal

Case studies in thermal engineering

Volume

23

Article number

100815

Pagination

1 - 10

Publisher

Elsevier

Location

Amsterdam, The Netherlands

ISSN

2214-157X

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

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