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Investigations in Emissions-Constrained, Integrated Gas-Electric Energy Systems.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Investigations in Emissions-Constrained, Integrated Gas-Electric Energy Systems./
Author:	Wald, Gregory Von .
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
Description:	238 p.
Notes:	Source: Dissertations Abstracts International, Volume: 83-05, Section: B.
Contained By:	Dissertations Abstracts International83-05B.
Subject:	Design optimization. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28812905
ISBN:	9798494455581

Investigations in Emissions-Constrained, Integrated Gas-Electric Energy Systems.
Wald, Gregory Von .

Investigations in Emissions-Constrained, Integrated Gas-Electric Energy Systems. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 238 p.

Source: Dissertations Abstracts International, Volume: 83-05, Section: B.

Thesis (Ph.D.)--Stanford University, 2021.

This item must not be sold to any third party vendors.

To mitigate risk of climate disaster, net atmospheric release of greenhouse gases (GHGs) from energy systems must decline to zero by mid-century. Electricity and natural gas are the most widely used end-use energy carriers in existing infrastructure systems that serve hundreds of millions of consumers in the United States and billions globally. Electricity and natural gas suppliers are also subject to unique regulatory oversight given their status as a public utility. While the electric power system has a reasonably clear path towards net-zero emissions, the natural gas system lacks a diverse set of low-carbon supply options.As energy utilities implement climate change mitigation policies, system planners require strategies for achieving affordable emissions reductions. Coordinated planning of electric power and natural gas delivery systems will allow synergistic investment plans to address cross-sector operational constraints, competing uses for net-zero emissions fuels, and shifts in final energy demands across energy carriers. The industrial sector accounts for a large share of natural gas demands and nearly a quarter of global greenhouse gas emissions. These energy demands can be difficult to transition to electric-powered alternatives. Methane pyrolysis could be used to produce low-carbon hydrogen for industrial processes while generating a solid carbon product that can be permanently sequestered or sold as a manufacturing feedstock. Accurate quantification and attribution of GHG emissions liabilities is essential for climate policy but challenging in the case of energy transfers across regulatory jurisdictions. Regulating emissions associated with delivered electricity is further complicated by contractual arrangements for dynamic electricity transfer that confound emissions accounting approaches rooted in the physics of grid operations. As such, the transition to net-zero emissions natural gas and electric power systems must accommodate three parallel trends: increasing integration across gas and electric energy systems, the challenge of difficult-to-decarbonize industrial energy demands, and the regulatory and accounting structures which track and assess their emissions liabilities or promote the development of low-carbon resources. Here, we present new modeling frameworks that help elucidate features of cost-effective transitions to deeply-decarbonized, integrated gas-electric energy systems. We develop and implement three model formulations that enable design and simulation of low-carbon energy systems, providing insight for the policy and economic decisions that will shape the transition.The industrial sector accounts for a large share of natural gas demands and nearly a quarter of global greenhouse gas emissions. These energy demands can be difficult to transition to electricpowered alternatives. Methane pyrolysis could be used to produce low-carbon hydrogen (H2) for industrial processes while generating a solid carbon product that can be permanently sequestered or sold as a manufacturing feedstock. Chapter 3 analyzes methane pyrolysis via a molten media that continuously catalyzes the reaction and separates the produced carbon. We perform design optimization to evaluate the technoeconomics of this technology. We model a template small-scale 50 MW boiler (10.4 k tonne H2/year) as a base case for combustion applications, because such boilers are particularly challenging to decarbonize (are expensive to electrify and too small-scale for postcombustion CO2 capture and sequestration (CCS)). We find that the levelized cost of low-carbon energy using the reactor is $11.09/MMBTU, equivalent to an abatement cost of $115/tonne CO2 avoided.

ISBN: 9798494455581Subjects--Topical Terms:

3681984
Design optimization.

Investigations in Emissions-Constrained, Integrated Gas-Electric Energy Systems.
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