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Deep Freeze 2021 FAQ

Ice crystals form on a natural gas meter

A major winter storm swept across North America during the week of Feb. 14, 2021.

The ultra-low temperatures led to a dramatic increase in demand for electricity and heating fuels.

This event strained the electrical grid that spans 14 states, including Oklahoma. 

What utilities paid

Utility fuel, purchased power costs from February 2021 Winter Storm

Frequently Asked Questions


Follow up: SPP analysis

SPP presentation - March

Presentation by SPP Chief Operating Officer Lanny Nickell provided to the Corporation Commissioners on March 18, 2021.

Video available upon request by emailing the Commission's Office of Public Information at opi@occ.ok.gov.


SPP presentation - August

Presentation by SPP Chief Operating Officer Lanny Nickell provided to the Corporation Commissioners on Aug. 17, 2021.


Utility cases filed

Regulatory Asset cases: Applications request the extraordinary fuel costs be treated as a 'regulatory asset.' OCC rules allow a utility to recover costs from regulatory assets over many years.

Securitization cases: Application under the new Securitization statute, Senate Bill 1050, the Legislature passed and the Governor signed April 23, 2021.

Case type Company Case #
Regulatory Asset Oklahoma Natural Gas PUD 202100034
Regulatory Asset Arkansas Oklahoma Gas PUD 202100037
Regulatory Asset Oklahoma Gas & Electric Co. PUD 202100039
Regulatory Asset Public Service Co. of Oklahoma PUD 202100040
Regulatory Asset CenterPoint Energy Resources Corp. PUD 202100042
Regulatory Asset Liberty/Empire Electric PUD 202100050
Purchased Gas Adjustment Ft. Cobb Fuel Authority PUD 202100057
Regulatory Asset Panhandle Natural Gas PUD 202100059
Securitization Oklahoma Gas & Electric Co. PUD 202100072
Securitization Public Service Co. of Oklahoma PUD 202100076
Securitization Oklahoma Natural Gas PUD 202100079
Securitization Arkansas Oklahoma Gas PUD 202100084
Securitization CenterPoint Energy Resources Corp. d/b/a CenterPoint Energy Oklahoma Gas Company PUD 202100087
Regulatory Asset Canadian Valley Electric Cooperative PUD 202100158

Find more court documents


Preparing for the 'Big Chill'

Commission hearing on lessons learned from the February 2021 storm and steps to ensure adequate and affordable natural gas supplies for Oklahoma's coming winter.


Have more questions?

Contact the Office of Public Information if you have questions that aren't addressed here.

Have grid questions?

If you have questions regarding the 14-state electricity grid, please contact the Southwest Power Pool's communications office.

Last Modified on Apr 16, 2024