Integrating large scale wind power into the electricity grid in the Northeast of Brazil.
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Date
2016
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Abstract
Wind power in the NE (Northeast) region of Brazil is currently undergoing rapid development and
installed capacity is expected to exceed 16,000 MW by 2020. This study examines the feasibility of
integrating large scale wind power into an electricity grid (the Brazilian NE subsystem) which has a high
proportion of existing hydroelectricity. By extrapolating existing wind power generation data, the
maximum achievable wind power penetration (without exports to other Brazilian regions) and corresponding
surplus energy is determined for the NE subsystem. The viable maximum penetration of wind
energy generation in the NE subsystemwas estimated to be 65% of the average annual electricity demand
assuming that existing hydroelectric and gas generators have 100% scheduling flexibility. These results
are compared to the actual gross penetration of wind power forecast to reach 55% in the NE subsystem by
2020. The overall LCOE (levelised cost of electricity) is calculated for various scenarios where wind power
replaces all fossil fuel generators in NE subsystem. It was concluded that by 2020, wind power could
feasibly reduce the overall LCOE by approximately 46e52% and reduce CO2eq emissions by 34 million
tonnes per year compared to a power system with no new renewable generation.
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Keywords
Renewable energy, Wind power, Hydroelectricity, Integration
Citation
JONG, P. de et al. Integrating large scale wind power into the electricity grid in the Northeast of Brazil. Energy, Oxford, v. 100, p. 401-415, 2016. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0360544215016680>. Acesso em: 29 set. 2017.