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Analyzing Energy System Decarbonization Strategy: Linear Optimization and Techno-Economic Modeling
Analyzing Energy System Decarbonization Strategy: Linear Optimization and Techno-Economic Modeling
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202103603
- ISBN
- 9798288862564
- DDC
- 621
- 서명/저자
- Analyzing Energy System Decarbonization Strategy: Linear Optimization and Techno-Economic Modeling
- 발행사항
- [Sl] : University of California, Berkeley, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 59 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-01, Section: A.
- 주기사항
- Advisor: Carvallo, Juan Pablo;Callaway, Duncan.
- 학위논문주기
- Thesis (Ph.D.)--University of California, Berkeley, 2025.
- 초록/해제
- 요약Energy system decarbonization is critical for avoiding the social and environmental consequences of climate change, but accomplishing this involves significant challenges. It requires balancing variable solar and wind, fuel switching difficult-to-electrify heat and transport, and drastically altering industrial sectors. Energy system modeling is necessary to analyze the technical and economic effectiveness of possible technology and policy options and thereby determine an optimal decarbonization strategy. Though the theoretical insight created through energy system modeling is just an initial step, by motivating policy and targeting technology, it is an important step on the pathway to practical implementation of decarbonization strategy. The following dissertation analyzes two decarbonization strategies using two energy system models. The first chapter gives an overview of the modeling and analysis of energy system decarbonization strategy. The second chapter investigates the utilization of hydrogen as an integrated energy carrier for electricity balancing and fuel switching by relying on a linear optimization model of an integrated electric and fuel system, described in the third chapter. The fourth chapter investigates the application of technological breakthroughs from oil and gas to geothermal systems for economically competitive industrial steam by relying on a techno-economic model of an industrial geothermal steam system, described in the fifth chapter. Regarding the second and third chapters: By utilizing hydrogen as an integrated energy carrier - that is, a fuel which connects primary energy sources and final energy uses, completely analogous to and interconnected with electricity - it may serve a critical role for energy system decarbonization. This requires inefficient hydrogen electrolysis, but it also allows flexibility for balancing variable solar and wind and for fuel switching difficult-to-electrify heat and transport. This study investigates that concept by creating and analyzing a linear optimization model which matches energy supply and demand across an integrated electric and fuel system. A key point is the trade-off between inefficient hydrogen conversion and flexible hydrogen production and consumption, which has multiple consequences: 1) Utilizing hydrogen reduces system cost slightly but raises the penetration of solar and wind and reduces the electrification of heat and transport considerably. 2) Integrating electricity balancing and fuel switching capabilities raises hydrogen conversion and reduces system cost. 3) Including specialized sectors raises hydrogen production but reduces hydrogen consumption for heat and transport. Another key point is that utilizing hydrogen impacts system cost and energy flows regardless of an emission limit, due to assumptions regarding the cost and efficiency of electrolysis. An emission limit multiplies this impact though, and this impact is robust to variations in the electrolysis assumptions. If the Department of Energy Hydrogen Shot target of $1/kg of hydrogen is achieved, then this study makes a compelling case that utilizing hydrogen as an integrated energy carrier can in fact serve a critical role for energy system decarbonization.Regarding the fourth and fifth chapters: The Department of Energy Enhanced Geothermal Shot aims to achieve a geothermal electricity price of $45/MWh by 2035. Despite the focus on geothermal electricity, an advantage of geothermal steam is that it avoids the nearly 70% efficiency loss associated with spinning a turbine to power a generator. A disadvantage of steam is that, unlike electricity, it is not an easily tradable commodity and must generally be produced and consumed at the same facility. This means that the potential for geothermal steam is conventionally limited by the mismatch between steam demand in the eastern United States and geothermal supply in the western United States. However, advances by the oil and gas industry, in particular hydraulic fracturing and horizontal drilling, may alleviate this mismatch. This study investigates the impact of technological advances on the economic competitiveness of geothermal steam. It does this by creating and analyzing a techno-economic model which calculates the levelized cost of a geothermal steam system for conservative, moderate, and advanced cases. A key point is that technological advances considerably decouple the levelized cost of geothermal steam from resource quality. This means that geothermal can be reasonably accessed anywhere, including where steam is required, and that heat exchanger capacity, rather than well depth, is the predominant factor for determining economic feasibility. Consequently, the levelized cost of geothermal steam is cut in half, from $14/MMBtu in the conservative case to $7/MMBtu in the advanced case, making it nearly competitive with natural gas boilers and particularly competitive with electric heat pumps.
- 일반주제명
- Energy
- 일반주제명
- Environmental science
- 일반주제명
- Climate change
- 일반주제명
- Sustainability
- 키워드
- Energy system
- 키워드
- Decarbonization
- 기타저자
- University of California, Berkeley Energy & Resources
- 기본자료저록
- Dissertations Abstracts International. 87-01A.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■1001 ▼aGriffin-Carney, Jesse.
■24510▼aAnalyzing Energy System Decarbonization Strategy: Linear Optimization and Techno-Economic Modeling
■260 ▼a[Sl]▼bUniversity of California, Berkeley▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a59 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-01, Section: A.
■500 ▼aAdvisor: Carvallo, Juan Pablo;Callaway, Duncan.
■5021 ▼aThesis (Ph.D.)--University of California, Berkeley, 2025.
■520 ▼aEnergy system decarbonization is critical for avoiding the social and environmental consequences of climate change, but accomplishing this involves significant challenges. It requires balancing variable solar and wind, fuel switching difficult-to-electrify heat and transport, and drastically altering industrial sectors. Energy system modeling is necessary to analyze the technical and economic effectiveness of possible technology and policy options and thereby determine an optimal decarbonization strategy. Though the theoretical insight created through energy system modeling is just an initial step, by motivating policy and targeting technology, it is an important step on the pathway to practical implementation of decarbonization strategy. The following dissertation analyzes two decarbonization strategies using two energy system models. The first chapter gives an overview of the modeling and analysis of energy system decarbonization strategy. The second chapter investigates the utilization of hydrogen as an integrated energy carrier for electricity balancing and fuel switching by relying on a linear optimization model of an integrated electric and fuel system, described in the third chapter. The fourth chapter investigates the application of technological breakthroughs from oil and gas to geothermal systems for economically competitive industrial steam by relying on a techno-economic model of an industrial geothermal steam system, described in the fifth chapter. Regarding the second and third chapters: By utilizing hydrogen as an integrated energy carrier - that is, a fuel which connects primary energy sources and final energy uses, completely analogous to and interconnected with electricity - it may serve a critical role for energy system decarbonization. This requires inefficient hydrogen electrolysis, but it also allows flexibility for balancing variable solar and wind and for fuel switching difficult-to-electrify heat and transport. This study investigates that concept by creating and analyzing a linear optimization model which matches energy supply and demand across an integrated electric and fuel system. A key point is the trade-off between inefficient hydrogen conversion and flexible hydrogen production and consumption, which has multiple consequences: 1) Utilizing hydrogen reduces system cost slightly but raises the penetration of solar and wind and reduces the electrification of heat and transport considerably. 2) Integrating electricity balancing and fuel switching capabilities raises hydrogen conversion and reduces system cost. 3) Including specialized sectors raises hydrogen production but reduces hydrogen consumption for heat and transport. Another key point is that utilizing hydrogen impacts system cost and energy flows regardless of an emission limit, due to assumptions regarding the cost and efficiency of electrolysis. An emission limit multiplies this impact though, and this impact is robust to variations in the electrolysis assumptions. If the Department of Energy Hydrogen Shot target of $1/kg of hydrogen is achieved, then this study makes a compelling case that utilizing hydrogen as an integrated energy carrier can in fact serve a critical role for energy system decarbonization.Regarding the fourth and fifth chapters: The Department of Energy Enhanced Geothermal Shot aims to achieve a geothermal electricity price of $45/MWh by 2035. Despite the focus on geothermal electricity, an advantage of geothermal steam is that it avoids the nearly 70% efficiency loss associated with spinning a turbine to power a generator. A disadvantage of steam is that, unlike electricity, it is not an easily tradable commodity and must generally be produced and consumed at the same facility. This means that the potential for geothermal steam is conventionally limited by the mismatch between steam demand in the eastern United States and geothermal supply in the western United States. However, advances by the oil and gas industry, in particular hydraulic fracturing and horizontal drilling, may alleviate this mismatch. This study investigates the impact of technological advances on the economic competitiveness of geothermal steam. It does this by creating and analyzing a techno-economic model which calculates the levelized cost of a geothermal steam system for conservative, moderate, and advanced cases. A key point is that technological advances considerably decouple the levelized cost of geothermal steam from resource quality. This means that geothermal can be reasonably accessed anywhere, including where steam is required, and that heat exchanger capacity, rather than well depth, is the predominant factor for determining economic feasibility. Consequently, the levelized cost of geothermal steam is cut in half, from $14/MMBtu in the conservative case to $7/MMBtu in the advanced case, making it nearly competitive with natural gas boilers and particularly competitive with electric heat pumps.
■590 ▼aSchool code: 0028.
■650 4▼aEnergy
■650 4▼aEnvironmental science
■650 4▼aClimate change
■650 4▼aSustainability
■653 ▼aEnergy system
■653 ▼aDecarbonization
■653 ▼aLinear optimization
■653 ▼aTechno-economic model
■653 ▼aHydrogen electrolysis
■690 ▼a0791
■690 ▼a0640
■690 ▼a0404
■690 ▼a0768
■690 ▼a0501
■71020▼aUniversity of California, Berkeley▼bEnergy & Resources.
■7730 ▼tDissertations Abstracts International▼g87-01A.
■790 ▼a0028
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17357809▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


