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http://hdl.handle.net/10773/37725
Title: | Replacing coal-fired power plants by photovoltaics in the Portuguese electricity system |
Author: | Figueiredo, Raquel Nunes, Pedro Meireles, Mónica Madaleno, Mara Brito, Miguel C. |
Keywords: | Coal phase-out Photovoltaics Energy storage Electricity systems Renewable energy |
Issue Date: | 10-Jun-2019 |
Publisher: | Elsevier |
Abstract: | The decarbonization of the Portuguese electricity system, currently around 50% renewable-based, is undergoing with the commitment to reach 60% of renewable electricity share by 2020. Because of this, the phase-out of the two remaining coal-fired power plants has been receiving close attention, as they currently contribute to about one-fifth of the total electricity generation and two-thirds of the CO2 emissions in the power sector. This work assesses the impact of eliminating coal-fired generation from the Portuguese electricity system without replacing it, and explores a cleaner supply alternative achievable before 2025. Coal phase-out without substitution results in slightly increased CO2 emissions for the atmosphere if one assumes that the required additional imports are of carbon-intensive electricity, leading to the need of adding clean power capacity to the system. It is shown that coal plants could be replaced by about 8 GW of photovoltaics if accompanied by a modest increase in the already existing hydro pump capacity. In this case, the renewable electricity share increases to 77%, and carbon footprint decreases by 56% |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/37725 |
DOI: | 10.1016/j.jclepro.2019.02.217 |
ISSN: | 0959-6526 |
Appears in Collections: | DEGEIT - Artigos GOVCOPP - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Replacing coal-fired power plants by photovoltaics in the Portuguese electricity.pdf | 1.89 MB | Adobe PDF | View/Open |
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