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Dr. Kathleen Spees is a Principal at The Brattle Group with expertise in wholesale electricity and environmental policy design and analysis.

Her work for market operators, regulators, regulated utilities, and market participants focuses on:

  • Wholesale Power Market Reform
  • Capacity Market Design
  • Wholesale Energy and Ancillary Service Market Design
  • Carbon and Environmental Policy
  • Generation and Transmission Asset Valuation
  • Analysis of Emerging Technologies and Specialized Products

Dr. Spees has worked in more than a dozen international jurisdictions supporting the design and enhancement of environmental policies and wholesale power markets. Her clients include electricity system operators in PJM, Midcontinent, New England, Ontario, New York, Alberta, Texas, Italy, and Australia. Electricity market design assignments involve ensuring adequacy of capacity and energy market investment incentives to achieve reliability objectives at least cost; designing carbon and clean energy policies that effectively interact with wholesale electricity markets; enhancing operational reliability and efficiency through energy market, scarcity pricing, and ancillary service market improvements; effectively integrating intermittent renewables, storage, demand response, and other emerging technologies; evaluating benefits and costs of industry reform initiatives; and enhancing efficiency at market interties.

For system operators and regulators, Dr. Spees provides expert support through stakeholder forums, independent public reports, and testimony in regulatory proceedings. For utilities and market participants, her assignments support business strategy, investment decisions, asset transactions, contract negotiation, regulatory proceedings, and litigation. Dr. Spees has developed and applied a wide range of analytical and modeling tools to inform these policy, market design, and business decisions.

Dr. Spees earned her PhD in Engineering and Public Policy within the Carnegie Mellon Electricity Industry Center and her MS in Electrical and Computer Engineering from Carnegie Mellon University. She earned her BS in Physics and Mechanical Engineering from Iowa State University.

Testimony
Before the Federal Energy Regulatory Commission, Docket No. ER17-284-000, Testimony of Dr. Samuel A. Newell, Dr. Kathleen Spees, and Dr. David Luke Oates on Behalf of Midcontinent Independent System Operator (MISO) regarding the Competitive Retail Solution.
November 1, 2016
Before the Environmental Protection Agency, Docket No. EPA-HQ-OAR-2015-0199. Comments of Judy Chang, Kathleen Spees, and David Luke Oates on the Clean Power Plan Federal Implementation Plan Proposal. Sponsored by Wolverine Power Supply Cooperative, Inc.
January 21, 2016
Before the Federal Energy Regulatory Commission, Docket No. ER14-2940-000, Response of Dr. Samuel A. Newell and Dr. Kathleen Spees on Behalf of PJM Interconnection, LLC, regarding variable resource requirement curve, for use in PJM’s capacity market.
November 5, 2014
Federal Energy Regulatory Commission, Docket ER14-2940-000. Affidavit of Dr. Samuel A. Newell and Dr. Kathleen Spees on behalf of PJM Interconnection, LLC regarding periodic review of variable resource requirement curve shape and key parameters.
September 25, 2014
Before the Federal Energy Regulatory Commission, Docket No. ER14-1639-000, Testimony of Dr. Samuel A. Newell and Dr. Kathleen Spees on Behalf of ISO New England Inc. regarding a Forward Capacity Market Demand Curve
April 1, 2014
Before the Federal Energy Regulatory Commission, Docket No. ER12-13-000, Response of Dr. Samuel A. Newell and Dr. Kathleen Spees on Behalf of PJM Interconnection, LLC, re: the Cost of New Entry Estimates for Delivery Year 2015/16 in PJM’s Reliability Pricing Model
January 13, 2012 (filed)
Before the Federal Energy Regulatory Commission, Docket Nos. RM10-17-000 and EL09-68-00, Filed Comments re: Supplemental Notice of Proposed Rulemaking and September 13, 2010 Technical Conference
October 4, 2010
Before the Maryland Public Service Commission, Administrative Docket PC22, Filed Comments In the Matter of the Reliability Pricing Model and the 2013/2014 Delivery Year Base Residual Auction Results
October 1, 2010
Before the Federal Energy Regulatory Commission, Docket No. RM10-17-000 and EL09-68-00, Filed Comments re: Notice of Proposed Rulemaking regarding wholesale compensation of demand response
May 13, 2010
Publications
Report
Opportunities to More Efficiently Meet Seasonal Capacity Needs in PJM
April 12, 2018
Samuel A. Newell, Kathleen Spees, Yingxia Yang, Elliott Metzler, and John Imon Pedtke
Prepared for the Natural Resources Defense Council (NRDC)
Presentation
Hello World: Alberta's Capacity Market
March 18, 2018
Presented at the 2018 IPPSA Conference

This presentation provides an update on the policy framework and draft proposal of Alberta’s new electricity market.

Presentation
A Dynamic Clean Energy Market in New England
November 2017
Prepared by The Brattle Group and Coalition Partners (Conservation Law Foundation, Brookfield Renewable, NextEra Energy Resources, National Grid, and Robert Stoddard)
Report
Near-Term Reliability Auctions in the NEM: Lessons from International Jurisdictions
August 23, 2017
Kathleen Spees, Samuel A. Newell, David Luke Oates, Toby Brown, Neil Lessem, Daniel Jang, and John Imon Pedtke
Prepared for the Australian Energy Market Operator (AEMO)
Presentation
Flexibility Enhancements: Alberta Needs and Experience from Other Jurisdictions
August 15, 2017
Prepared for Alberta Electricity System Operator
Report
Pricing Carbon into NYISO’s Wholesale Energy Market to Support New York’s Decarbonization Goals
August 10, 2017
Prepared for the New York Independent System Operator (NYISO)
The study, prepared for the New York Independent System Operator (NYISO), finds that adding a carbon charge into the wholesale energy market could improve the state’s ability to meet its decarbonization goals cost-effectively.
Article
How Wholesale Power Markets and State Environmental Policies Can Work Together
July 10, 2017
Published in Utility Dive
Report
Advancing Past "Baseload" to a Flexible Grid: How Grid Planners and Power Markets Are Better Defining System Needs to Achieve a Cost-Effective and Reliable Supply Mix
June 26, 2017
Prepared for the Natural Resources Defense Council (NRDC)

The report examines why traditional “baseload” power plants, such as coal and nuclear, are becoming less economical, why their ability to produce power continuously is less essential in today’s supply mix, and why operational flexibility is an increasingly important ingredient for a cost-effective supply of electricity.

Presentation
Decarbonisation and Tomorrow's Electricity Market
June 12, 2017
Presented at the 2017 IESO Stakeholder Summit
Article
Reforming Ontario’s Wholesale Electricity Market: The Costs and Benefits
June 2017
Published in Energy Regulation Quarterly, Volume 5, Issue 2
This article provides a review of a recent report authored by Brattle economists examining the net benefit that Ontario could realize through implementation of a locational energy market, improving the system’s operating flexibility, and the introduction of an incremental capacity auction for maintaining resource adequacy.
Report
Energy and Ancillary Services Market Reforms in Greece: A Path to Enhancing Flexibility and Adopting the European Target Model
May 2017
Prepared for Hellenic Association of Independent Power Producers (HAIPP)
Report
The Future of Ontario's Electricity Market: A Benefits Case Assessment of the Market Renewal Project
April 20, 2017
Johannes P. Pfeifenberger, Kathleen Spees, Judy Chang, Mariko Geronimo Aydin, Walter Graf, Peter Cahill, James Mashal, and John Imon Pedtke
Prepared for IESO
Presentation
Using Competitive Markets to Achieve Policy Objectives: How the Systems Built for Fossil Plants Can Evolve to Support the Clean, Distributed Grid of the Future
March 29, 2017
Presented at the Energy Bar Association 2017 Annual Meeting & Conference
Presentation
Rethinking Capacity Mechanisms in the Context of Emerging Flexibility Challenges
February 03, 2017
Presented at the European Capacity Mechanisms Forum
Report
CO2 Allowance Allocation Options: Considerations for State Policymakers when Developing Mass-Based Compliance Strategies Under the Clean Power Plan
November 28, 2016
Judy Chang, Kathleen Spees, and Tony Lee
Prepared for the Natural Resources Defense Council (NRDC)

The report examines the economic and policy implications of different carbon dioxide (CO2) allowance allocation approaches under the Clean Power Plan’s (CPP) mass-based standard and/or carbon-cutting programs.

Report
Covering New Gas-Fired Combined Cycle Plants under the Clean Power Plan: Implications for Economic Efficiency and Wholesale Electricity Markets
November 16, 2016
Prepared for the Natural Resources Defense Council

The report examines the potential implications for competitive wholesale electricity markets if new gas-fired combined cycle (CC) plants are not covered under the Clean Power Plan’s (CPP) mass-based state implementation plans (SIPs).

Presentation
CO2e Cap-and-Trade: Interactions with Electricity Markets
November 15, 2016
Presented to the Association of Power Producers of Ontario
Report
Enabling Canadian Electricity Imports for Clean Power Plan Compliance: Technical Guidance for U.S. State Policymakers
June 28, 2016
Prepared for the Canadian Electricity Association, Canadian Hydropower Association, Canadian Wind Energy Association, Emera Incorporated, Government of Canada, Government of Québec, Manitoba Hydro, Nalcor Energy, and Powerex Corporation
Presentation
Clean Power Plan in Texas: Implications for Renewables and the Electricity Market
February 09, 2016
Presented at the 2016 Renewable Energy Law Conference
Report
Western Australia's Transition to a Competitive Capacity Auction
January 29, 2016
Kathleen Spees, Samuel A. Newell, and Colin A. McIntyre
Prepared for EnerNoc
Report
The Clean Power Plan: Focus on Implementation and Compliance
January 2016
Published by The Brattle Group, Inc.
Report
Enhancing the Efficiency of Resource Adequacy Planning and Procurements in the Midcontinent ISO Footprint: Options for MISO, Utilities, and States
November 2015
Prepared for NRG
Report
International Review of Demand Response Mechanisms
October 2015
Prepared for the Australian Energy Market Commission (AEMC)
Presentation
Impacts of Distributed Storage on Electricity Markets, Utility Operations, and Customers
May 01, 2015
Presented at the 2015 MIT Energy Initiative Associate Member Symposium
Report
The Value of Distributed Electricity Storage in Texas - Proposed Policy for Enabling Grid-Integrated Storage Investments (Full Technical Report)
March 2015
Ioanna Karkatsouli, James Mashal, Lauren Regan, Judy Chang, Matthew Davis, Johannes P. Pfeifenberger, and Kathleen Spees
Prepared for Oncor
Presentation
The Value of Distributed Electrical Energy Storage in Texas: Proposed Policy for Enabling Grid-Integrated Storage Investments
January 29, 2015
Presented at the Energy Storage Policy Forum 2015, Washington, DC
Presentation
EPA’s Clean Power Plan: Potential Impacts on Asset Values
January 13, 2015
Presented at Infocast's 7th Annual Projects & Money Summit 2015
Report
The Value of Distributed Electricity Storage in Texas: Proposed Policy for Enabling Grid-Integrated Storage Investments
November 10, 2014
Prepared for Oncor
Report
Quantifying the Amount and Economic Impacts of Missing Energy Efficiency in PJM’s Load Forecast
September 2014
Prepared for The Sustainable FERC Project
Presentation
Hydropower and the EPA Section 111(d) Proposal
August 12, 2014
Presented at the National Hydropower Association
Report
Resource Adequacy in Western Australia: Alternatives to the Reserve Capacity Mechanism
August 2014
Prepared for EnerNOC, Inc.
Article
How Will The EPA's Clean Power Plan Impact Wind?
July 01, 2014
Published in North American Windpower
Report
Policy Brief - EPA’s Proposed Clean Power Plan: Implications for States and the Electric Industry
June 2014
Published by The Brattle Group, Inc.
Report
Third Triennial Review of PJM’s Variable Resource Requirement Curve
May 15, 2014
Johannes P. Pfeifenberger, Samuel A. Newell, Kathleen Spees, Ann Murray, and Ioanna Karkatsouli
Prepared for PJM Interconnection, L.L.C.
Report
Cost of New Entry Estimates for Combustion Turbine and Combined Cycle Plants in PJM
May 15, 2014
Samuel A. Newell, Michael Hagerty, Kathleen Spees, Johannes P. Pfeifenberger, Quincy Liao, Christopher D. Ungate, and John Wroble
Prepared for PJM Interconnection, L.L.C.
Presentation
Energy and Capacity Markets: Tradeoffs in Reliability, Costs, and Risks
February 27, 2014
Presented at the Harvard Electricity Policy Group Seventy-Fourth Plenary Session
Report
Estimating the Economically Optimal Reserve Margin in ERCOT
January 31, 2014
Samuel A. Newell, Kathleen Spees, Johannes P. Pfeifenberger, Ioanna Karkatsouli, Nick Wintermantel, and Kevin Carden
Prepared for The Public Utility Commission of Texas
Report
Developing a Market Vision for MISO - Supporting a Reliable and Efficient Electricity System in the Midcontinent
January 27, 2014
Prepared for the Midcontinent Independent System Operator, Inc. (MISO)
Presentation
Characteristics of Successful Capacity Markets
October 31, 2013
Presented at the APEx Conference 2013, New York, NY
Article
Capacity Markets — Lessons Learned from the First Decade
September 2013
Published in Economics of Energy & Environmental Policy, Vol. 2, No. 2
Report
Resource Adequacy Requirements: Reliability and Economic Implications
September 2013
Johannes P. Pfeifenberger, Kathleen Spees, Kevin Carden, and Nick Wintermantel
Prepared for the Federal Energy Regulatory Commission (FERC)
Presentation
Outlook on Fundamentals in PJM’s Energy and Capacity Markets
August 08, 2013
Presented at the 12th Annual Power and Utility Conference, Hosted by Goldman Sachs
Report
Evaluation of Market Fundamentals and Challenges to Long-Term System Adequacy in Alberta’s Electricity Market: 2013 Update
March 2013
Prepared for the Alberta Electric System Operator
Presentation
Get Ready for Much Spikier Energy Prices: The Under-Appreciated Market Impacts of Displacing Generation with Demand Response
February 07, 2013
Presented at the Cadwalader Energy Investor Conference
Report
Resource Adequacy in California: Options for Improving Efficiency and Effectiveness
October 2012
Prepared for Calpine
Presentation
Seams Inefficiencies: Problems and Solutions at Energy Market Borders
July 27, 2012
Presented at the EUCI Canadian Transmission Summit
Report
ERCOT Investment Incentives and Resource Adequacy
June 01, 2012
Prepared for the Electric Reliability Council of Texas
Presentation
New U.S. Emission Regulations: Electric Industry Impacts
May 11, 2012
Presented at the U.S. Energy 24th Annual Energy Conference
Report
Supply Chain and Outage Analysis of MISO Coal Retrofits for MATS
May 2012
Metin Celebi, Kathleen Spees, Quincy Liao, and Steve Eisenhart
Prepared for Midwest Independent Transmission System Operator
Presentation
Resource Adequacy: Current Issues in North American Power Markets
November 29, 2011
Prepared for the Alberta Power Summit
Presentation
Options for Extending Forward Certainty in Capacity Markets
November 09, 2011
Presented at the EUCI Conference on Capacity Markets: Achieving Market Price Equilibrium
Report
Second Performance Assessment of PJM's Reliability Pricing Model: Market Results 2007/08 through 2014/15
August 26, 2011
Johannes P. Pfeifenberger, Samuel A. Newell, Kathleen Spees, Attila Hajos, and Kamen Madjarov
Prepared for PJM Interconnection
Report
Cost of New Entry Estimates For Combustion Turbine and Combined-Cycle Plants in PJM
August 24, 2011
Prepared for PJM Interconnection
Presentation
Second RPM Performance Assessment and CONE Study
August 18, 2011
Prepared for PJM Interconnection
Report
Evaluation of Market Fundamentals and Challenges to Long-Term System Adequacy in Alberta’s Electricity Market
April 2011
Prepared for the Alberta Electric System Operator by The Brattle Group, Inc.
Presentation
Capacity Market Designs: Focus on CAISO, NYISO, PJM, and ISO-NE
July 19, 2010
Published by The Brattle Group, Inc.
Report
Renewables and Storage – Does Size Matter?
March 11, 2010
Published by The Brattle Group, Inc.
Presentation
Best Practices in Resource Adequacy
January 27, 2010
Presented at the PJM Long Term Capacity Issues Symposium
Report
Midwest ISO’s Resource Adequacy Construct: An Evaluation of Market Design Elements
January 19, 2010
Samuel A. Newell, Kathleen Spees, and Attila Hajos
Prepared for Midwest Independent System Operator (MISO)
Report
A Comparison of PJM's RPM with Alternative Energy and Capacity Market Designs
September 2009
Prepared for PJM Interconnection
Article
Impacts of Responsive Load in PJM: Load Shifting and Real Time Pricing
2008
Kathleen Spees and Lester B. Lave
Published in The Energy Journal
Article
Demand Response and Electricity Market Efficiency
April 2007
Kathleen Spees and Lester B. Lave
Published in The Electricity Journal
News & Events
March 19, 2018
Judy Chang to Present at Independent Power Producers Society of Alberta's Annual Conference

Brattle Principal Judy Chang will present at the Independent Power Producers Society of Alberta’s (IPPSA) 24th Annual Conference, “A Market Reborn,” taking place March 18-20, 2018 in Alberta, Canada.

November 20, 2017
Kathleen Spees to Present at APPrO's Canadian Power Conference

Brattle Principal Kathleen Spees will present at the Association of Power Producers of Ontario’s (APPrO) 29th Annual Canadian Power Conference and Networking Centre, taking place November 20-21, 2017 in Toronto.

August 14, 2017
Brattle Economists: NYISO Carbon Charge Could Help Meet New York Decarbonization Goals More Cost-Effectively

A report authored by Brattle economists and prepared for the New York Independent System Operator (NYISO) finds that adding a carbon charge into the wholesale energy market could improve the state’s ability to meet its decarbonization goals cost-effectively. The study reveals that refunding collected carbon revenues back to customers results in minimal impact on customer electricity costs compared to current policies.

June 26, 2017
Brattle Economists Recommend Moving beyond "Baseload" Generation for Planning and Operating Today's Electric Grid

Brattle economists have released a report explaining how the use of the term “baseload” generation is no longer useful for the purposes of planning and operating today’s electricity system.

June 20, 2017
Brattle Economists Contribute Two Articles to Energy Regulation Quarterly

Brattle economists have contributed two articles to the current issue of Energy Regulation Quarterly, a journal that provides a forum for debate and discussion on issues surrounding the regulated energy industries in Canada.

April 26, 2017
Ontario Market Renewal Effort Could Provide Up to CAD $5.2 Billion in Customer and Supplier Benefits, According to Brattle Economists

Brattle economists have authored a report that concludes the Independent Electricity System Operator’s (IESO) proposed Market Renewal efforts to reform the province’s wholesale electricity markets could provide significant benefits to customers and suppliers in Ontario.

April 03, 2017
Kathleen Spees to Present at EBA 2017 Annual Meeting and Conference

Brattle Principal Kathleen Spees will present at the Energy Bar Association’s (EBA) 2017 Annual Meeting & Conference, taking place April 3-4, 2017 in Washington, DC.

November 28, 2016
Report by Brattle Economists Examines Implications of Carbon Allowance Allocation Approaches under Clean Power Plan

A report by Brattle consultants examines the economic and policy implications of different carbon dioxide (CO2) allowance allocation approaches under the Clean Power Plan’s (CPP) mass-based standard and/or carbon-cutting programs.

November 16, 2016
Including New Gas-Fired Combined Cycle Plants in State Clean Power Plan Compliance Could Lower System Costs of Achieving Carbon Reduction Goals, According to Brattle Economists

A report issued by Brattle consultants examines the potential implications for competitive wholesale electricity markets if new gas-fired combined cycle (CC) plants are not covered under the Clean Power Plan’s (CPP) mass-based state implementation plans (SIPs).

June 28, 2016
Report by Brattle Economists Provides Guidance on Enabling Canadian Clean Energy Imports for Clean Power Plan Compliance

Brattle consultants have issued a report that provides technical guidance to U.S. state policymakers on how to enable clean energy imports from Canada for compliance with the Environmental Protection Agency’s (EPA) Clean Power Plan (CPP).

May 05, 2016
Open Letter by Brattle Economists Offers Responses to U.S. Senators’ Questions Concerning the Efficacy of U.S. Electricity Capacity Markets

Hannes Pfeifenberger, Sam Newell, Kathleen Spees, and Roger Lueken have authored an open letter in response to a series of questions on the state of U.S. electricity capacity markets posed by members of the United States Senate’s Committee on Energy and Natural Resources.

January 06, 2016
Policy Brief by Brattle Economists Examines Compliance and Implementation Options Under EPA’s Clean Power Plan

Economists at The Brattle Group issued a policy brief that examines the compliance and implementation challenges facing states and utilities under the Environmental Protection Agency’s (EPA) proposed CO2 emissions standards for existing fossil units under the Clean Air Act (CAA) Section 111(d), known as the Clean Power Plan (CPP).

September 02, 2015
Brattle Report Cited in Utility Dive Article on Energy Storage in the Texas Market

A November 2014 Brattle report was recently featured in a Utility Dive article discussing the possibility of Texas market rules holding back utilities from deploying cost-effective energy storage.

March 13, 2015
Deploying Up to 5,000 MW of Grid-Integrated Electricity Storage in Texas Could Provide Substantial Net Benefits According to Brattle Economists

A report recently released by Brattle economists finds that the deployment of grid-integrated distributed electricity storage in Texas could provide substantial net benefits to the power system in ERCOT and its electricity customers. The report evaluates whether storage could be cost-effectively deployed from the perspectives of retail customers, wholesale electricity market participants, and the combined system or “society as a whole” while maintaining wholesale power prices that continue to support necessary generation investments.

January 05, 2015
The Brattle Group Announces Three Principal Promotions

The Brattle Group is pleased to announce the promotion of Toby Brown, Ryan Hledik, and Kathleen Spees to principal.

November 10, 2014
Deploying Up to 5,000 MW of Grid-Integrated Electricity Storage in Texas Could Provide Substantial Net Benefits According to Brattle Economists

A report by Brattle economists finds that the deployment of grid-integrated distributed electricity storage in Texas could provide substantial net benefits to the power system in ERCOT and its electricity customers.

June 18, 2014
Policy Brief by Brattle Economists Provides Insights into EPA’s Proposed Carbon Emission Standards for Existing Fossil Units

Brattle economists issued a policy brief that examines the primary features and implications of the Environmental Protection Agency’s (EPA) proposed CO2 emissions standards for existing fossil units under the Clean Air Act (CAA) Section 111(d).