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Gangopadhyay, A.
- Risk assessment of wind droughts over India
Abstract Views :410 |
PDF Views:154
Authors
Affiliations
1 Divecha Centre for Climate Change, Indian Institute of Science, Bengaluru 560 012, IN
2 Blackett Laboratory, Department of Physics, Imperial College, London SW7 2AZ, United Kingdom; Department of Physics and Grantham Institute – Climate Change and Environment, Imperial College, Exhibition Rd, South Kensington, London SW7 2BU,, GB
3 Blackett Laboratory, Department of Physics, Imperial College, London SW7 2AZ, United Kingdom; Department of Physics and Grantham Institute – Climate Change and Environment, Imperial College, Exhibition Rd, South Kensington, London SW7 2BU, GB
4 Divecha Centre for Climate Change and Centre for Atmospheric and Oceanic Sciences, Indian Institute of Science, Bengaluru 560 012, IN
1 Divecha Centre for Climate Change, Indian Institute of Science, Bengaluru 560 012, IN
2 Blackett Laboratory, Department of Physics, Imperial College, London SW7 2AZ, United Kingdom; Department of Physics and Grantham Institute – Climate Change and Environment, Imperial College, Exhibition Rd, South Kensington, London SW7 2BU,, GB
3 Blackett Laboratory, Department of Physics, Imperial College, London SW7 2AZ, United Kingdom; Department of Physics and Grantham Institute – Climate Change and Environment, Imperial College, Exhibition Rd, South Kensington, London SW7 2BU, GB
4 Divecha Centre for Climate Change and Centre for Atmospheric and Oceanic Sciences, Indian Institute of Science, Bengaluru 560 012, IN
Source
Current Science, Vol 122, No 10 (2022), Pagination: 1145-1153Abstract
Wind power growth makes it essential to simulate weather variability and its impacts on the electricity grid. Low-probability, high-impact weather events such as a wind drought are important but difficult to identify based on limited historical datasets. A stochastic weather generator, Imperial College Weather Generator (IMAGE), is employed to identify extreme events through long-period simulations. IMAGE captures mean, spatial correlation and seasonality in wind speed and estimates return periods of extreme wind events over India. Simulations show that when Rajasthan experiences wind drought, southern India continues to have wind, and vice versa. Regional grid-scale wind droughts could be avoided if grids are strongly interconnected across the country.Keywords
Decarbonization, grid interconnections, risk assessment, stochastic weather generators, wind drought.Full Text
References
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- Wind and Solar Energy for Reducing Electricity Deficits in Karnataka
Abstract Views :478 |
PDF Views:175
Authors
Affiliations
1 National Institute of Advanced Studies, IISc Campus, Bengaluru 560 012, IN
2 Power System Operation Corporation Limited, 29, Race Course Cross Road, Bengaluru 560 009, IN
1 National Institute of Advanced Studies, IISc Campus, Bengaluru 560 012, IN
2 Power System Operation Corporation Limited, 29, Race Course Cross Road, Bengaluru 560 009, IN
Source
Current Science, Vol 111, No 5 (2016), Pagination: 796-807Abstract
Karnataka suffers from chronic electricity shortages and daily load-shedding, which are expected to persist despite planned additions of conventional power. Using four illustrative scenarios based on different assumptions, we estimate the additional contributions wind and solar power sources could make to reduce these deficits by FY2022. The method developed estimates expected hourly deficits in FY2022 from projected unrestricted demands and expected availability from conventional sources. We estimate that additional 8000-8700 MW (11 BU) of wind and 3300-3500 MW (5 BU) of solar power would reduce the annual deficit by approximately three-fourths. A recommended pumped hydro storage facility will reduce the deficits further by 10% and help in meeting the daily peaks in demand.Keywords
Conventional Energy Sources, Electricity Shortage, Pumped Hydro Storage, Wind and Solar Power.Full Text