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Mr. Tsoukalis has broad experience helping clients respond to a range of issues related to wholesale power markets. He is an expert in electric market modeling, analyzing regional market participation, transmission rate design, market design, detection of market manipulation and damages analyses, and strategic planning.

Mr. Tsoukalis has assisted electric utilities, cooperatives, public power authorities, transmission developers, generation owners, and power traders. In addition, he has worked with ISOs and RTOs to develop market rules governing capacity auctions, wholesale markets, ancillary services, and financial products. He has also helped ISOs and RTOs to design market power mitigation regimes and auction clearing mechanics.

Mr. Tsoukalis has led numerous efforts in modeling the power system to assess the benefits of participating in wholesale power markets, value generation assets, and analyze the benefits of new transmission. Among his transmission experience, Mr. Tsoukalis has assisted clients in analyzing alternative transmission rate designs and led strategic planning initiatives to help clients plan for the ongoing clean energy transition. He has also worked with transmission developers to analyze investment opportunities in the US and Canada.

Mr. Tsoukalis’s experience also extends to assisting clients with antitrust and competition issues in North America and Europe. He has helped create systems to monitor and prevent potential market manipulation and market power abuse in the US and Europe. He has assisted clients in analyzing allegations of market manipulation – including assessing liability – and the potential distortion or harm to the market.

Publications
Presentation
2020 CAISO Blackouts and Beyond: The Future of California Resource Planning
January 29, 2021
Frank C. Graves, John Tsoukalis, and Sophie Leamon
Presented at LSI Electric Power in the West Conference
Report
Western Energy Imbalance Service and SPP Western RTO Participation Benefits
December 2, 2020
John Tsoukalis, Johannes P. Pfeifenberger, Metin Celebi, Sophie Leamon, Carson Peacock, and Sharan Ganjam
Prepared for Southwest Power Pool
Report
Joint Dispatch Agreement Energy Imbalance Market Participation Benefits Study
January 14, 2020
Judy Chang, Johannes P. Pfeifenberger, John Tsoukalis, Sophie Leamon, and Carson Peacock
Prepared for Black Hills Corporation, Colorado Spring Utilities, Platte River Power Authority, and Public Service Company of Colorado
Report
Potential Benefits of a Regional Wholesale Power Market to North Carolina's Electricity Customers
April 2019
Commissioned by the North Carolina Clean Energy Business Alliance, Carolina Utility Customers Association, and Conservatives for Clean Energy – North Carolina
Presentation
SPP's Proposed Ramp Product: Initial Recommendations for Maximizing the Benefits of a Ramping Product
September 11, 2018 and October 23, 2018
Presented to Holistic Integrated Tariff Team
Report
Initial Comments on SPP's Draft Ramp Product Report
August 30, 2018
Prepared for Golden Spread Electric Cooperative, Inc.
Report
Production Cost Savings Offered by Regional Transmission and a Regional Market in the Mountain West Transmission Group Footprint
April 10, 2017
Prepared for Basin Electric Power Cooperative; Black Hills Corporation; Colorado Springs Utilities; Platte River Power Authority; Public Service Company of Colorado; Tri-State Generation and Transmission Cooperative; and Western Area Power Administration

This report analyzes how different market structures could alter production costs in the combined service areas of the Mountain West Transmission Group entities.

Report
Building an Effective Trade Surveillance System: A Framework-Based Approach using Guidance from Two Recent FERC White Papers
March 20, 2017
Published by The Brattle Group, Inc.

The whitepaper outlines a cost-effective, learning-driven approach for companies to develop in-house trade surveillance systems to analyze potentially manipulative behavior.

Presentation
FERC's Market Manipulation Rule: Impact on FTRs and the Virtual Market
March 08, 2016
Presented at the Energy Bar Association Midwest Chapter Annual Meeting
Presentation
The Critical Role of Transmission in Clean Power Plan Compliance
November 17, 2015
Presented at the Kinetic Conference on Competitive Bidding for Transmission Expansion
Presentation
Investment Trends and Fundamentals in U.S. Transmission and Electricity Infrastructure
July 17, 2015
Presented to the JP Morgan Investor Conference
Article
Market Manipulation Push is Widening the Compliance Gap
January 23, 2015
Published in Risk.net
Presentation
Dynamics and Opportunities in Transmission Development
December 02, 2014
Presented to TransForum East, Washington, DC
News & Events
January 28, 2021
Experts Daniel Gaynor, Fabricio Nuñez, Nicholas Powers, and John Tsoukalis Promoted to Principal at The Brattle Group

The Brattle Group is pleased to announce that four experts were recently promoted to Principal: Daniel Gaynor, Fabricio Nuñez, Nicholas Powers, and John Tsoukalis.

November 19, 2020
John Tsoukalis to Discuss Market Design at Southeast Renewable Energy Conference

Brattle Senior Associate John Tsoukalis will speak at Infocast’s 5th Annual Southeast Renewable Energy Conference, which will take place virtually on November 17–19.

February 21, 2018
Shaun Ledgerwood and John Tsoukalis to Present at Energy Risk Event on Trade Surveillance & Market Compliance for Energy Trading Organizations

Brattle Principal Shaun Ledgerwood and Senior Associate John Tsoukalis will present at Energy Risk’s training event, “Trade Surveillance & Market Compliance for Energy Trading Organizations,” taking place February 21-22, 2018 in Houston, TX.

January 29, 2018
Shaun Ledgerwood and John Tsoukalis to Present at EUCI Conference on Financial Transmission and Auction Revenue Rights

Brattle Principal Shaun Ledgerwood and Senior Associate John Tsoukalis will present at Electric Utility Consultants, Inc.’s (EUCI) conference, “Financial Transmission and Auction Revenue Rights (FTRs/CRRs/TCRs/ARRs),” taking place January 29-30, 2018 in Washington, DC.

August 25, 2017
Brattle Announces Senior Associate Promotions

The Brattle Group is pleased to announce the promotions of Lucia Bazzucchi, Francesca Mazzarella, Akarsh Sheilendranath, Mike Tolleth, and John Tsoukalis to Senior Associate.

April 10, 2017
Report by Brattle Economists Evaluates Production Cost Savings of Regional Market Participation by Mountain West Entities

Brattle Principals Judy Chang and Johannes Pfeifenberger, and Associate John Tsoukalis have authored a report that analyzes how different market structures could alter production costs in the combined service areas of the Mountain West Transmission Group entities.

March 20, 2017
Building an Effective Trade Surveillance System: Guidance from FERC White Papers

Brattle Principal Shaun Ledgerwood and Associate John Tsoukalis have authored a white paper that outlines a cost-effective, learning-driven approach for companies to develop in-house trade surveillance systems to analyze potentially manipulative behavior.

July 20, 2015
Brattle Economists Show Record $20 Billion in Annual U.S. Transmission Investments Will be Sustained Over Next Several Years

Economists at The Brattle Group have released an updated study showing that transmission investment in the United States will remain strong over the next decade, with a projected $20 billion investment required annually over the next several years and at least $120 billion to $180 billion needed over the next decade.

August 21, 2014
Testimony by Principal Bob Mudge Key to Ameren Win in $500 Million Rate Dispute Before Missouri Public Service Commission

Testimony provided by Brattle principal Bob Mudge underpinned key criteria cited by the Missouri Public Service Commission in a unanimous ruling against Ameren’s largest customer, Noranda Aluminum, Inc.