Solar energy—A look into power generation, challenges, and a solar-powered future
Muhammad Badar Hayat
Department of Mining and Nuclear Engineering, Missouri University of Science and Technology, Rolla, MO, 65409 USA
Mining Engineering Department, University of Engineering and Technology, Lahore, Pakistan
Search for more papers by this authorDanish Ali
Department of Mining and Nuclear Engineering, Missouri University of Science and Technology, Rolla, MO, 65409 USA
Search for more papers by this authorKeitumetse Cathrine Monyake
Department of Mining and Nuclear Engineering, Missouri University of Science and Technology, Rolla, MO, 65409 USA
Search for more papers by this authorCorresponding Author
Lana Alagha
Department of Mining and Nuclear Engineering, Missouri University of Science and Technology, Rolla, MO, 65409 USA
Correspondence
Lana Alagha, Associate Professor, Missouri University of Science and Technology, 288 McNutt Hall, 1400 North Bishop, Rolla, MO 65409, USA.
Email: [email protected]
Search for more papers by this authorNiaz Ahmed
Department of Electrical and Computer Engineering, Missouri University of Science and Technology, Rolla, MO, 65409 USA
Search for more papers by this authorMuhammad Badar Hayat
Department of Mining and Nuclear Engineering, Missouri University of Science and Technology, Rolla, MO, 65409 USA
Mining Engineering Department, University of Engineering and Technology, Lahore, Pakistan
Search for more papers by this authorDanish Ali
Department of Mining and Nuclear Engineering, Missouri University of Science and Technology, Rolla, MO, 65409 USA
Search for more papers by this authorKeitumetse Cathrine Monyake
Department of Mining and Nuclear Engineering, Missouri University of Science and Technology, Rolla, MO, 65409 USA
Search for more papers by this authorCorresponding Author
Lana Alagha
Department of Mining and Nuclear Engineering, Missouri University of Science and Technology, Rolla, MO, 65409 USA
Correspondence
Lana Alagha, Associate Professor, Missouri University of Science and Technology, 288 McNutt Hall, 1400 North Bishop, Rolla, MO 65409, USA.
Email: [email protected]
Search for more papers by this authorNiaz Ahmed
Department of Electrical and Computer Engineering, Missouri University of Science and Technology, Rolla, MO, 65409 USA
Search for more papers by this authorSummary
Sun is an inexhaustible source of energy capable of fulfilling all the energy needs of humankind. The energy from the sun can be converted into electricity or used directly. Electricity can be generated from solar energy either directly using photovoltaic (PV) cells or indirectly using concentrated solar power (CSP) technology. Progress has been made to raise the efficiency of the PV solar cells that can now reach up to approximately 34.1% in multi-junction PV cells. Electricity generation from concentrated solar technologies has a promising future as well, especially the CSP, because of its high capacity, efficiency, and energy storage capability. Solar energy also has direct application in agriculture primarily for water treatment and irrigation. Solar energy is being used to power the vehicles and for domestic purposes such as space heating and cooking. The most exciting possibility for solar energy is satellite power station that will be transmitting electrical energy from the solar panels in space to Earth via microwave beams. Solar energy has a bright future because of the technological advancement in this field and its environment-friendly nature. The biggest challenge however facing the solar energy future is its unavailability all-round the year, coupled with its high capital cost and scarcity of the materials for PV cells. These challenges can be met by developing an efficient energy storage system and developing cheap, efficient, and abundant PV solar cells.
This article discusses the solar energy system as a whole and provides a comprehensive review on the direct and the indirect ways to produce electricity from solar energy and the direct uses of solar energy. The state-of-the-art procedures being employed for PV characterization and performance rating have been summarized. Moreover, the technical, economic, environmental, and storage-related challenges are discussed with possible solutions. Furthermore, a comprehensive list of future potential research directions in the field of direct and indirect electricity generation from solar energy is proposed.
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