Director
Ari Gold-Parker

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Ari Gold-Parker

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Dr. Aryeh (Ari) Gold-Parker joined E3 in 2018. He supports E3’s Climate Pathways and Distributed Energy Resources practice areas, where his work focuses on building and vehicle electrification, utility cost recovery and rate design, and energy affordability.

Ari supports clients through robust analytical modeling and clear communication of technical concepts and model results. He works to help policymakers, regulators, utilities, and businesses understand how our electricity and natural gas systems will transform under deep decarbonization and to inform policy- and decision-making. In addition, Ari has helped prepare expert witness testimony for regulatory commissions in California, Georgia, Minnesota, and Alberta. He has also enhanced E3’s modeling capabilities by developing new tools for understanding the impacts of building electrification on peak electric loads and on natural gas revenue requirements and rates.

Prior to E3, Ari completed a Chemistry PhD at Stanford, where his research on novel materials for solar cells was published in Nature Communications and the Proceedings of the National Academy of Sciences. Before graduate school, Ari was a field organizer for a U.S. Senate campaign and led voter turnout for a dozen municipalities in Massachusetts. Outside of work, he enjoys running, hiking, and rock climbing.

Education:  PhD, chemistry, Stanford University; BA, chemistry and physics, Harvard University

Projects

Hawaiʻi Pathways to Decarbonization | Hawaiʻi State Energy Office, 2023

E3 supported the Hawaiʻi State Energy Office in the development of a report to the State Legislature evaluating long-term pathways to economywide decarbonization in Hawaiʻi and recommending new policies to ensure the achievement of the state’s decarbonization goals. E3 supported the Hawaiʻi State Energy Office in this effort by developing long-term decarbonization scenarios using the PATHWAYS model to explore the tradeoffs between different pathways to achieving Hawaiʻi’s goals.

The report affirms and recommends maintaining the state’s economy-wide emissions reduction target of 50% by 2030, relative to 2005 levels. The analysis shows that while challenging to achieve, with high levels of energy efficiency and conservation, renewable energy, and natural carbon sinks, among other measures, this ambitious goal is within reach.

Read the detailed project description.

Impact of Massachusetts’s Decarbonization Goals | Massachusetts Local Gas Distribution Companies, 2021-2023

E3 provided analysis in support of the Massachusetts Department of Public Utilities (DPU) December 2023 Order in the 20-80 “Future of gas” proceeding, which sets a new regulatory framework for the future of natural gas distribution in support of the Commonwealth’s climate goals. The DPU recommended the E3 team’s analysis in support of the 20-80 proceeding, writing:

“The Department commends the LDCs and their Consultants for their comprehensive effort in estimating the costs and economy-wide GHG emissions reductions involved in transitioning the natural gas system. The Department fully recognizes the difficulty in assessing these multidimensional challenges and expresses its appreciation for the comprehensive Pathways Report.

E3 developed and analyzed eight decarbonization pathways and six regulatory design recommendations as part of a multi-year engagement examining the role of local gas distribution companies (LDCs) in Massachusetts in achieving net-zero greenhouse gas (GHG) emissions in the Commonwealth by 2050. In addition to the Decarbonization Pathways Study, which was developed as part of the Commonwealth’s 20-80 proceeding, E3 assisted each of the LDCs in their filing of a Net Zero Enablement Plan that included LDC-specific recommendations and plans to support the Commonwealth’s decarbonization goals. This project also involved a broad modeling framework designed by E3 as well as an extensive stakeholder process aimed at gauging stakeholder perspectives on gas decarbonization.

Read the detailed project description.


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