Retrofit Solutions to Electric Power Sector Decarbonization in the American Midwest

Electric power system decarbonization requires phasing out existing, carbon-emitting power plants and replacing them with new, clean generation and transmission capacity. This transition presents simultaneous challenges in investment and operational costs and system reliability. In hopes of saving c...

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Main Author: Morris, Jack
Other Authors: Mallapragada, Dharik
Format: Thesis
Published: Massachusetts Institute of Technology 2022
Online Access:https://hdl.handle.net/1721.1/144721
https://orcid.org/0000-0002-1471-9708
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author Morris, Jack
author2 Mallapragada, Dharik
author_facet Mallapragada, Dharik
Morris, Jack
author_sort Morris, Jack
collection MIT
description Electric power system decarbonization requires phasing out existing, carbon-emitting power plants and replacing them with new, clean generation and transmission capacity. This transition presents simultaneous challenges in investment and operational costs and system reliability. In hopes of saving costs, ensuring reliability, and preserving the power plant workforce, interest has risen among states and utilities in the potential of power plant retrofits. By reusing existing equipment and infrastructure in aging coal and natural gas power plants, utilities can save costs on new greenfield developments. Several developing technologies well-equipped to reuse all or part of the facilities at these thermal power plants include firm, low-carbon power plants and long-duration storage facilities. These technologies help balance load in a high renewables grid while employing much of the same power plant workforce. A study of retrofit options is particularly important for the American Midwest where coal makes up a large portion of the resource mix and where the potential for intermittent wind deployment is high. This thesis enables retrofit modeling in a multi-stage capacity expansion framework and uses it to evaluate the potential for retrofits to lower system costs and cumulative emissions over three modeled carbon reduction pathways from 2020 to 2040 in the Midwest and surrounding areas. Although resulting reductions in cost and emissions are modest, we observe notable system-level reductions in curtailment of renewable generation, transmission expansion, and new natural gas deployment as well as distributional impacts relating to the costs of transitioning to a low-carbon electric power system.
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spelling mit-1721.1/1447212022-08-30T03:14:23Z Retrofit Solutions to Electric Power Sector Decarbonization in the American Midwest Morris, Jack Mallapragada, Dharik Knittel, Christopher Massachusetts Institute of Technology. Institute for Data, Systems, and Society Electric power system decarbonization requires phasing out existing, carbon-emitting power plants and replacing them with new, clean generation and transmission capacity. This transition presents simultaneous challenges in investment and operational costs and system reliability. In hopes of saving costs, ensuring reliability, and preserving the power plant workforce, interest has risen among states and utilities in the potential of power plant retrofits. By reusing existing equipment and infrastructure in aging coal and natural gas power plants, utilities can save costs on new greenfield developments. Several developing technologies well-equipped to reuse all or part of the facilities at these thermal power plants include firm, low-carbon power plants and long-duration storage facilities. These technologies help balance load in a high renewables grid while employing much of the same power plant workforce. A study of retrofit options is particularly important for the American Midwest where coal makes up a large portion of the resource mix and where the potential for intermittent wind deployment is high. This thesis enables retrofit modeling in a multi-stage capacity expansion framework and uses it to evaluate the potential for retrofits to lower system costs and cumulative emissions over three modeled carbon reduction pathways from 2020 to 2040 in the Midwest and surrounding areas. Although resulting reductions in cost and emissions are modest, we observe notable system-level reductions in curtailment of renewable generation, transmission expansion, and new natural gas deployment as well as distributional impacts relating to the costs of transitioning to a low-carbon electric power system. S.M. 2022-08-29T16:07:08Z 2022-08-29T16:07:08Z 2022-05 2022-06-22T15:00:00.239Z Thesis https://hdl.handle.net/1721.1/144721 https://orcid.org/0000-0002-1471-9708 In Copyright - Educational Use Permitted Copyright MIT http://rightsstatements.org/page/InC-EDU/1.0/ application/pdf Massachusetts Institute of Technology
spellingShingle Morris, Jack
Retrofit Solutions to Electric Power Sector Decarbonization in the American Midwest
title Retrofit Solutions to Electric Power Sector Decarbonization in the American Midwest
title_full Retrofit Solutions to Electric Power Sector Decarbonization in the American Midwest
title_fullStr Retrofit Solutions to Electric Power Sector Decarbonization in the American Midwest
title_full_unstemmed Retrofit Solutions to Electric Power Sector Decarbonization in the American Midwest
title_short Retrofit Solutions to Electric Power Sector Decarbonization in the American Midwest
title_sort retrofit solutions to electric power sector decarbonization in the american midwest
url https://hdl.handle.net/1721.1/144721
https://orcid.org/0000-0002-1471-9708
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