The prospects of flexible natural gas-fired CCGT within a green taxonomy

Summary: Despite increased commitments toward net zero, there will likely be a continued need for natural gas to provide low carbon dispatchable power and blue hydrogen to balance the increased penetration of renewables. We evaluate the CO2 emissions intensity of electricity produced by (i) natural...

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Main Authors: Mai Bui, Nixon Sunny, Niall Mac Dowell
Format: Article
Language:English
Published: Elsevier 2023-08-01
Series:iScience
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2589004223014591
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author Mai Bui
Nixon Sunny
Niall Mac Dowell
author_facet Mai Bui
Nixon Sunny
Niall Mac Dowell
author_sort Mai Bui
collection DOAJ
description Summary: Despite increased commitments toward net zero, there will likely be a continued need for natural gas to provide low carbon dispatchable power and blue hydrogen to balance the increased penetration of renewables. We evaluate the CO2 emissions intensity of electricity produced by (i) natural gas-fired combined cycle gas turbine (CCGT) power plants with carbon capture and storage (CCS), and (ii) blue hydrogen CCGT plants which uses steam methane reforming with CCS to supply H2. This study aims to determine whether these assets are able to meet a possible green taxonomy emissions threshold of 100 kg CO2 eq/MWh. Key considerations include methane leakage, CO2 capture rate, and the impacts of start-up and shut down cycles performed by the CCGT-CCS plant. This study suggests that, in order for natural gas to play an enduring role in the transition toward net zero, managing GHG emissions from both the upstream natural gas supply chain and the conversion facility is key.
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spelling doaj.art-96b245558d8043aca8eb3dac8c6f8b3c2023-07-28T04:26:33ZengElsevieriScience2589-00422023-08-01268107382The prospects of flexible natural gas-fired CCGT within a green taxonomyMai Bui0Nixon Sunny1Niall Mac Dowell2Centre for Environmental Policy, Imperial College London, London, UK; Centre for Process Systems Engineering, Imperial College London, London, UKCentre for Environmental Policy, Imperial College London, London, UK; Centre for Process Systems Engineering, Imperial College London, London, UKCentre for Environmental Policy, Imperial College London, London, UK; Centre for Process Systems Engineering, Imperial College London, London, UK; Corresponding authorSummary: Despite increased commitments toward net zero, there will likely be a continued need for natural gas to provide low carbon dispatchable power and blue hydrogen to balance the increased penetration of renewables. We evaluate the CO2 emissions intensity of electricity produced by (i) natural gas-fired combined cycle gas turbine (CCGT) power plants with carbon capture and storage (CCS), and (ii) blue hydrogen CCGT plants which uses steam methane reforming with CCS to supply H2. This study aims to determine whether these assets are able to meet a possible green taxonomy emissions threshold of 100 kg CO2 eq/MWh. Key considerations include methane leakage, CO2 capture rate, and the impacts of start-up and shut down cycles performed by the CCGT-CCS plant. This study suggests that, in order for natural gas to play an enduring role in the transition toward net zero, managing GHG emissions from both the upstream natural gas supply chain and the conversion facility is key.http://www.sciencedirect.com/science/article/pii/S2589004223014591Energy policyEnergy ModellingEnergy Systems
spellingShingle Mai Bui
Nixon Sunny
Niall Mac Dowell
The prospects of flexible natural gas-fired CCGT within a green taxonomy
iScience
Energy policy
Energy Modelling
Energy Systems
title The prospects of flexible natural gas-fired CCGT within a green taxonomy
title_full The prospects of flexible natural gas-fired CCGT within a green taxonomy
title_fullStr The prospects of flexible natural gas-fired CCGT within a green taxonomy
title_full_unstemmed The prospects of flexible natural gas-fired CCGT within a green taxonomy
title_short The prospects of flexible natural gas-fired CCGT within a green taxonomy
title_sort prospects of flexible natural gas fired ccgt within a green taxonomy
topic Energy policy
Energy Modelling
Energy Systems
url http://www.sciencedirect.com/science/article/pii/S2589004223014591
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