Puerto Rico’s 2019 and 2021 Greenhouse Gas Inventories Report

Client: Puerto Rico Department of Natural and Environmental Resources (DNER)

Authors: Liz Stanton, PhD, Joshua R. Castigliego, Chirag T. Lala, Sachin Peddada,
Jay Bonner, Eliandro Tavares, Sumera Patel, Alicia Zhang, Myisha Majumder,
David Jiang, and Jordan Burt; Ramón Bueno and Kari Hewitt

July 2023

On behalf of the Puerto Rico Department of Natural and Environmental Resources (DNER), AEC staff and partners prepared a report that presents the results for Puerto Rico’s 2019 and 2021 greenhouse gas emission inventories together with 20-year emissions projections under several scenarios and sensitivities. AEC established a methodology for conducting greenhouse gas emission inventories in Puerto Rico, which went through a comprehensive quality assurance and quality control process by an Expert Panel (established for this project and composed of experts in greenhouse gas emissions measurement and Puerto Rico climate and energy issues). Using AEC’s Emissions Measurement Inventory Tool (AEC-EMIT), AEC calculates net greenhouse gas emissions released in Puerto Rico’s seven emitting sectors: (1) Power Supply, (2) Direct Fuel, (3) Industrial Processes and Product Use, (4) Transportation, (5) Agriculture, (6) Forestry and Other Land Use, and (7) Waste Management.

Puerto Rico’s 2019 Climate Change Mitigation, Adaption, and Resiliency Law (i.e., Puerto Rico Act No. 33-2019) measures mandated emission reductions against an estimated 2005 emissions level of 53.3 MMT CO₂e and calls for a 50 percent reduction relative to 2005 emissions by 2025 (26.7 MMT CO₂e). Emission levels achieved in 2021 (34.3 MMT CO₂e) represent a 36 percent reduction in emissions from 2005 levels. With 14 percentage points and 4 years left to go, Puerto Rico must find another 7.7 MMT CO₂e to eliminate. Based on the Business-as-Usual projection in AEC’s analysis, Puerto Rico’s greenhouse gas emission levels will reach their mandated levels (50 percent of 2005 levels, or 26.7 MMT CO₂e) in 2035, 10 years later than the required 2025 target.

Based on the analysis presented in this report, AEC has identified several key recommendations to further facilitate Puerto Rico’s work towards achieving its ambitious and necessary decarbonization goals set out in Puerto Rico’s 2019 Climate Change Mitigation, Adaption, and Resiliency Law, including: (1) better data collection, (2) increased climate progress reporting (3) reprioritization in rebuilding its electric sector, and (4) a new focus in transportation planning.

Link to Report (English)

Link to Report (Español)

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Assessing TVA’s IRP Planning Practices

Norris Dam in Anderson County, Tennessee. Image Credit: Brian Stansberry / Creative Commons

Client: Prepared on behalf of the Southern Environmental Law Center

Authors: Chirag Lala, Elisabeth Seliga, Liz Stanton, PhD

July 2023

On behalf of the Southern Environmental Law Center, Researcher Chirag Lala, Assistant Researcher Elisabeth Seliga, and Senior Economist Liz Stanton, PhD published a report that compares the Tennessee Valley Authority’s (TVA’s) Integrated Resource Planning (IRP) processes in 2011, 2015, and 2019 to the actual changes in capacity additions and retirements made by TVA from 2011 to 2021. The paper also examines the site-specific planning process used by TVA to determine the replacements for the Cumberland Fossil Plant.

AEC staff make several key recommendations for TVA’s 2024 Integrated Resource Planning Process: (1) TVA must set aggressive climate goals in line with the Paris Agreement and the Biden Administration’s executive orders on achieving carbon free electricity by 2035; (2) TVA must be transparent about its assumptions and modeling inputs; (4) TVA must select a portfolio with a more targeted preferred resource plan; (3) TVA must plan to utilize the grants, loans, and tax credits of the Inflation Reduction Act; (5) TVA must clarify how it demarcates “ownership” of solar and wind resource; (6) TVA should conduct an all-resource Request for Proposals (RFP) for new resources; (7) TVA must ensure its site-specific planning documents reflect the most recent IRP plans and use methods that do not contradict overall system- and other site-specific planning exercises.

Link to Report

Link to Environmental Group Comments on TVA IRP

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The Interconnection Bottleneck: Why Most Energy Storage Projects Never Get Built

Image Credit: Sara Levine | Pacific Northwest National Laboratory

Client: Prepared on behalf of Clean Energy Group

Authors: Chirag Lala, Jordan Burt, Sachin Peddada

May 2023

On behalf of the Clean Energy Group, Researcher Chirag Lala and Assistant Researchers, Sachin Pedadda and Jordan Burt prepared a report that assesses the obstacles preventing efficient interconnection of distributed energy storage resources. This Applied Economics Clinic (AEC) white paper identifies and explains these interconnection barriers in Massachusetts and makes recommendations to state agencies and working groups overseeing interconnection, distribution utilities, independent system operators, and the Federal Energy Regulatory Commission.  

AEC staff make these five key recommendations to stakeholders: (1) Develop proactive, integrated, and system-wide interconnection planning that takes a systemic view of applications and separates hosting capacity upgrades from particular project or cluster applications and makes hosting capacity upgrades in anticipation of grid-needs and future interconnection volume. (2) Continuously iterate interconnection processes to build in regular improvements, examine effectiveness, and coordinate public and private stakeholders to tackle ad hoc coordination problems. (3) Tackle barriers and solutions comprehensively by integrating multiple solutions. (4) End cost causation by spreading distribution system upgrade costs over a broader set of stakeholders (including ratepayers) than just allocating those costs to the projects or clusters applying for interconnection. (5) Incorporate storage operational parameters into interconnection processes so that storage resources are assessed in a manner reflecting how they would reasonably be expected to operate once interconnected alone or in conjunction with technologies regulating bidirectional power flows and facilitating predictable charging and discharging.

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Massachusetts MLPs Exemption from RPS: Impacts on Clean Energy

Client: Prepared on behalf of Massachusetts Climate Action Network

Authors: Tanya Stasio, PhD, Elisabeth Seliga, Liz Stanton, PhD

April 2023

On behalf of the Massachusetts Climate Action Network, Researcher Dr. Tanya Stasio, Assistant Researcher Elisabeth Seliga, and Senior Economist Dr. Liz Stanton prepared a presentation on the Massachusetts Municipal Light Plant (MLP) exemption from the Renewable Portfolio Standard (RPS) and the impact on clean energy in the Commonwealth. AEC finds that the MLP Greenhouse Gas Emissions Standard, and the RPS exemption, allow MLPs to remain at today's level of Class I renewable energy sources, resulting in substantially less clean energy in the Commonwealth than if MLPs were required to comply with the RPS.

This work was presented at the April 19th, 2023 MCAN Legislative Launch titled, "Advancing Clean Energy, Equity, and Innovation in Municipal Utilities." For more information, or to watch the recording of the event, visit the MCAN website here.

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Comparing Connecticut's Electric Vehicle Charging Program with Others from around the United States

Prepared on behalf of Connecticut Office of Consumer Counsel

Authors: Bryndis Woods, PhD, Sachin Peddada, Jay Bonner, Liz Stanton, PhD

March 2023

On behalf of the Connecticut Office of Consumer Counsel, this Applied Economics Clinic (AEC) white paper reviews the potential for electric vehicle (EV) charging programs to provide net benefits to consumers in Connecticut and fourteen other states. AEC finds that Connecticut’s EV charging programs are well-positioned to provide net benefits to consumers and meet the state’s EV and electric vehicle supply equipment deployment goals. Connecticut stands out as a leader due to the detailed nature of its EV and EV charging deployment goals, the inclusion of alternative rate structures to incentivize public EV charging stations, the availability of incentives to cover up to 100 percent of EV charging “make-ready” costs, and enhanced incentives for underserved communities (inclusive of low-income populations). AEC also finds, however, that Connecticut’s EV charging program could be strengthened by adopting best practices from other states’ programs, such as by setting more ambitious EV and EV charging deployment goals, working to target EV charging in as equitable a fashion as possible, and by offering ongoing incentives for EV charging.

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Electric Justice: A Toolkit for the Mid-Atlantic Region

Prepared on behalf of PJM Cities and Communities Coalition

Authors: Tanya Stasio, PhD, Elisabeth Seliga, Sachin Peddada, Elizabeth A. Stanton, PhD

Energy decisions affect everyone, but local communities and businesses often lack the time and resources needed to engage in grid operator decision-making. On behalf of the PJM Cities and Communities Coalition, AEC Researcher Tanya Stasio, PhD, Assistant Researchers Elisabeth Seliga and Sachin Peddada, and Senior Economist Liz Stanton, PhD developed a report to assist coalition members and other consumer groups in advocating for greater equity in PJM Interconnection decision-making. This resource was developed with the invaluable input of representatives of organizations that sponsored the Fix the Grid campaign in New England, which is focused on rejecting fossil fuels and calling for a just and democratic energy grid.

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Cumulative Impact Assessment of the North Brooklyn Pipeline Project

Prepared on behalf of Sane Energy and Alliance for a Green Economy

Author: Tanya Stasio, PhD, Jordan Burt, Elisabeth Seliga, Sachin Peddada, Elizabeth A. Stanton, PhD

The National Grid Phase 5 expansion of fossil fuel infrastructure and the Vaporizer 13/14 project at the Greenpoint Energy Center create a multi-pronged set of threats to the North Brooklyn communities.

AEC Researcher Tanya Stasio, PhD, Research Assistant Jordan Burt, Assistant Researchers Elisabeth Seliga and Sachin Peddada, and Senior Economist, Liz Stanton, PhD  have prepared a cumulative impact assessment on behalf of Sane Energy and Alliance for a Green Economy to highlight the existing and overlapping socioeconomic, environmental, and health-related burdens facing the communities living near the pending Phase 5 pipeline construction and vaporizer additions at the Greenpoint Energy Center. AEC finds that the Bushwick, Bedford, and Williamsburg neighborhoods would be impacted the most from these fossil fuel expansion projects and include densely populated communities with majority BIPOC and low-income residents.

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Testimony on The United Illuminating Company’s Proposed Clean Energy Transformation Initiatives

Prepared on behalf of The Connecticut Office of Consumer Counsel

Author: Elizabeth A. Stanton, PhD

On behalf of the Connecticut Office of Consumer Counsel, Senior Economist Elizabeth A. Stanton provided expert testimony to Docket No. 22-08-08 before Connecticut’s Public Utilities Regulatory Authority (PURA). In her testimony, Dr. Stanton reviewed The United Illuminating Company’s (UI) Application and proposed Clean Energy Transformation initiatives to assess whether they are consistent with Connecticut’s climate and clean energy policies, plans, and targets and in the best interest of ratepayers. Dr. Stanton concluded that UI has not provided enough information to adequately assess its proposed cost recovery for clean energy transformation initiatives. Dr. Stanton recommends that PURA should require electric distribution companies to do the following when seeking approval of proposed initiatives and programs: (1) submit benefit-cost analyses, (2) present comparative assessments, (3) engage in public stakeholder processes, and (4) evaluate performance based on specific metrics.

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Energy Storage Benefit-Cost Analysis

Prepared on behalf of the Clean Energy States Alliance

Authors: Bryndis Woods, PhD, Sachin Peddada, Elisabeth Seliga, Chirag Lala, Eliandro Tavares, Gabriel Lewis, Tsanta Rakotoarisoa, Elizabeth A. Stanton, PhD

Contributing Editor: Todd Olinsky-Paul, Clean Energy States Alliance

AEC staff prepared a report that provides a framework for state energy agencies contemplating a benefit-cost analysis (BCA) for battery storage on behalf of the Clean Energy States Alliance. AEC’s battery storage BCA framework provides guidance for state energy agencies preparing to conduct cost-effectiveness evaluation for battery storage, including information regarding: cost-effectiveness tests, discount rates, benefits, costs, sensitivity analyses, and stakeholder engagement.

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Expert Memo: Review of Memphis Light, Gas, and Water RFP Update and Staff Power Supply Recommendation

Client: Southern Environmental Law Center (SELC)

Authors: Elizabeth A. Stanton, PhD, Joshua R. Castigliego, Myisha Majumder, Eliandro Tavares, Sachin Peddada

AEC staff conducted an assessment of Memphis Light, Gas, and Water (MLGW)’s 2020 Integrated Resource Plan on behalf of the Southern Environmental Law Center, finding multiple instances of biases in favor of gas resources and against renewables and batteries. In light of these discoveries, AEC staff recommend that the biases be addressed prior to the MLGW Board making a decision on power supply alternatives.

Link to Memo

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Bringing Equity into Energy Reliability Decisions

Client: Environmental Defense Fund

Authors: Bryndis Woods, PhD, Sachin Peddada, Sagal Alisalad, Jordan Burt, Elisabeth Seliga, Tanya Stasio, PhD, Eliandro Tavares, Grace Wu, Elizabeth A. Stanton, PhD

AEC staff prepared a report on behalf of the Environmental Defense Fund that analyzes the connection between issues of energy system reliability and equity. This data-driven report utilizes case studies of advocates’ for more equitable energy systems real-world experiences to assess how decision-makers should account for equity when making decisions regarding system reliability. The report concludes with recommendations for future decision-making in energy system reliability, including strengthening consumer and community representation. A common theme across the real-world experiences of the advocates discussed in this report is the ways in which community engagement efforts in energy system decision-making often fall short of creating real change in energy sector decisions, and environmental justice and other under-resourced and underserved communities are often left out and left behind in decisions that directly disproportionately harm the health and wealth of their communities.

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District of Columbia Public Service Commission Formal Case No. 1167 Affidavit regarding Washington Gas and Light Company's 5 and 30 Year Plans

Author: Liz Stanton, PhD

July 2022

In July 2022, Senior Economist and Director Liz Stanton, PhD, filed an affidavit with the Public Service Commission of the District of Columbia on behalf of the Office of the People’s Counsel for the District of Columbia regarding Washington Gas and Light Company’s (WGL) 5- and 30-Year Plans as part of Formal Case No. 1167. The affidavit addressed WGL Plans’ lack of accounting for justice and equity in planning, lack of planning for fuel sources, and the need for a new cost-benefit analysis to properly analyze WGL’s Plans.

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Entergy Louisiana IRP Comments

Author: Tyler Comings

July 2022

AEC Senior Researcher Tyler Comings co-authored comments (along with Sierra Club) on Entergy Louisiana's Integrated Resource Plan (IRP). The comments ask Entergy to include more reasonable costs for renewable and storage resources, to model more early retirement options for its coal units, and fully capture the costs of using hydrogen fuel.

Link to Comments

Link to Comments on Draft IRP

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Testimony on Consumers IRP in Michigan

Author: Tyler Comings

July 2022

AEC Senior Researcher Tyler Comings filed direct and rebuttal testimony on Consumers Energy's Integrated Resource Plan (IRP) before the Michigan Public Service Commission. Mr. Comings argued with the economics of the company's proposal to acquire three affiliate gas plants, and also supported the company's plan to retire its Campbell coal units by 2025.

Link to Testimony

Link to Rebuttal Testimony

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Minnesota Power IRP Comments

Authors: Tyler Comings and Joshua R. Castigliego

July 2022

AEC Senior Researcher Tyler Comings and Researcher Joshua Castigliego co-authored an expert report (along with Energy Futures Group) on the Minnesota Power (MP) Integrated Resource Plan. The report presents an alternative to MP's plan to procure a share of a new natural gas combined cycle plant--showing that additional renewable, storage and demand-side resources provided a lower-cost solution than new gas for the utility.

Link to Report

Link to Reply Report

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District of Columbia Public Service Commission Formal Case No. 1167 Affidavit regarding Potomac Electric Power Company's 5 and 30 Year Plans

Client: The Office of the People’s Counsel for the District of Columbia

Author: Liz Stanton, PhD

June 2022

In June 2022, Senior Economist and Director Liz Stanton, PhD, filed an affidavit with the Public Service Commission of the District of Columbia on behalf of the Office of the People’s Counsel for the District of Columbia regarding materials submitted by Pepco as part of Formal Case No. 1167. The affidavit addressed Pepco’s lack of accounting for equity in planning and distribution, discrepancies between Pepco and Washington Gas and Light Company’s (WGL) climate plans, and lack of program reassessment and evaluation.

Link to Affidavit

Link to Full Comments

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Barriers and Opportunities for Green Jobs in New Jersey

Authors: Bryndis Woods, PhD, Joshua R. Castigliego, Elisabeth Seliga, Sachin Peddada, Tanya Stasio, PhD, Liz Stanton, PhD

June 2022

Senior Researcher Bryndis Woods, PhD, Researcher Joshua Castigliego, Assistant Researchers Elisabeth Seliga and Sachin Peddada, Researcher Tanya Stasio, PhD, and Senior Economist Liz Stanton, PhD prepared a report that assesses New Jersey’s current clean energy workforce, identifies barriers to green jobs that impede access to—and equitable representation within—the clean energy sector, and provides recommendations regarding how the State of New Jersey can shape policy and regulations to enhance the equity, diversity and inclusion of its clean energy jobs. AEC staff find that there are important barriers to green jobs that reinforce existing inequities in New Jersey’s clean energy workforce, including: educational/experience barriers, logistical barriers, equitable access barriers, and institutional barriers. Achieving a future of clean energy jobs in New Jersey that is diverse, equitable and inclusive will require overcoming barriers to green jobs with intentional efforts targeted at marginalized and underrepresented groups, such as racial/ethnic minorities, women, low-income households, and people with limited English proficiency.

In a companion publication to this report—Economic Impacts of a Clean Energy Transition in New Jersey—AEC assesses the job and other economic impacts associated with achieving a clean energy transition in New Jersey over the next few decades. 

Link to Report

Link to Presentation

Link to Press Release

Media Coverage - NJBiz - June 9, 2022

Media Coverage - NJ Spotlight News - June 8, 2022

Media Coverage - Asbury Park Press - June 8, 2022

Media Coverage - NJ101.5 - June 7, 2022

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Economic Impacts of a Clean Energy Transition in New Jersey

Authors: Joshua R. Castigliego, Sagal Alisalad, Sachin Peddada, Liz Stanton, PhD

June 2022

Researcher Joshua Castigliego, Assistant Researchers Sagal Alisalad and Sachin Peddada, and Senior Economist Liz Stanton, PhD prepared a report on the economic impacts associated with a clean energy transition in New Jersey that aims to achieve the State’s climate and energy goals in the coming decades. AEC staff find that adding in-state renewables and storage, and electrifying transportation and buildings creates additional job opportunities, while also bolstering the state’s economy. From 2025 to 2050, AEC estimates that New Jersey’s clean energy transition will result in almost 300,000 more “job-years” (an average of about 11,000 jobs per year) than would be created without it. AEC also identifies a variety of additional benefits of a clean energy transition, including several benefits that are conditional on the design and implementation of the transition.

In a companion publication to this report—Barriers and Opportunities for Green Jobs in New Jersey—AEC discusses equity, diversity and inclusion in New Jersey’s clean energy sector along with barriers that impede equitable representation in New Jersey’s green jobs.

Link to Report

Link to Presentation

Link to Press Release

Media Coverage - NJBiz - June 9, 2022

Media Coverage - NJ Spotlight News - June 8, 2022

Media Coverage - Asbury Park Press - June 8, 2022

Media Coverage - NJ101.5 - June 7, 2022

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