January 22, 2018

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Federal Energy Regulatory Commission (FERC) Addresses Fuel Obligations of Capacity Resources in ISO New England

A capacity resource may not take economic outages, but a resource may be considered physically unavailable if it cannot obtain natural gas or transportation.

On August 27, the Federal Energy Regulatory Commission (FERC) issued an order addressing the fuel obligations of capacity resources in ISO New England Inc. (ISO-NE). FERC concluded that ISO-NE's Transmission, Markets, and Services Tariff (ISO-NE Tariff) imposes a strict performance obligation on capacity resources. Capacity resources thus may not take economic outages, including outages based on economic decisions not to procure fuel or transportation. However, if a capacity resource is not able to obtain natural gas or transportation, then that resource may be considered physically unavailable and thus excused from its performance obligations.

The ISO-NE Tariff does not include a specific firm fuel requirement for capacity resources. However, as relevant here, a capacity resource that is physically available must (a) offer into the day-ahead and real-time energy markets a MW amount equal to or greater than its "Capacity Supply Obligation," (b) respond to ISO-NE's directives to start, shutdown or change output levels, and (c) keep supply offers open throughout the operating day. The issue addressed by FERC was whether a capacity resource's failure to comply with these requirements due to fuel procurement violates the ISO-NE Tariff.

FERC concluded that a plain reading of the ISO-NE Tariff establishes that nonperformance by a capacity resource is excused only in limited circumstances and that "merely exercising Good Utility Practice in an effort to procure fuel is not one of them." FERC stated that the tariff imposes a strict performance obligation on capacity resources unless a capacity resource is unable to follow dispatch instructions due to Forced Outages, Force Majeure events, or other events that result in a capacity resource not being physically available. FERC stated that the price of fuel or an unwillingness to procure fuel at the prevailing price does not "qualify as a 'Forced Outage' or 'Force Majeure' event based upon a reasonable interpretation of those terms." A capacity resource thus may not make an economic determination not to procure fuel or transportation, but its failure to perform due to a "demonstrated inability" to procure fuel or transportation for a resource to run beyond its day-ahead commitment "may" legitimately affect whether a resource is physically available. Whether a capacity resource can show that it was unable to procure fuel or transportation will be determined on a case-by-case basis. Note that, while FERC stated that a demonstrated inability "may" provide an excuse for nonperformance, FERC did not indicate when such a demonstration may not provide such an excuse.

FERC also stated that, under the circumstances present in ISO-NE, FERC will not pursue any pending enforcement referrals that are based solely on a capacity resource's alleged inability to procure natural gas. FERC stated that, going forward, it expects ISO-NE and its market monitor to refer suspected violations to FERC. Further, ISO-NE, through its market monitor, must develop a written explanation of the factors it expects to examine to determine whether there is a reason to believe a violation has occurred. ISO-NE must submit an information filing within 30 days of FERC's order.


FERC's order is based on specific language in the ISO-NE Tariff. Thus, on its face, the order is limited to capacity resources in ISO-NE. However, to the extent the tariff of another Regional Transmission Organization or Independent System Operator that operates capacity markets does not specifically address fuel requirements of capacity resources and includes requirements like those in the ISO-NE Tariff, FERC may apply similar reasoning if the issue arises in other regions.

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About this Author

Glen S. Bernstein, Electric Utility Regulation Attorney, Morgan Lewis Law Firm

Glen S. Bernstein is a partner in Morgan Lewis's Energy Practice. Mr. Bernstein represents clients in all aspects of electric utility regulation and deregulation, with an emphasis on transmission and interconnection access, rates, and planning; independent transmission providers; electricity markets; and compliance with Federal Energy Regulatory Commission (FERC) Standards of Conduct and Codes of Conduct, affiliate transaction rules, and antimarket manipulation rules.


John D. McGrane is a partner in Morgan Lewis's Energy Practice. Mr. McGrane has more than 30 years of experience representing electric utilities and other participants in the electric power industry. He is listed in Chambers USA: America's Leading Lawyers for Business, Chambers Global: The World’s Leading Lawyers, and The Best Lawyers in America as one of America's leading energy attorneys.