Summary Of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2023

Accounting Policies [Abstract]

Schedule of Depreciation Rates

Our depreciation rates for the past three years were as follows:

	Depreciation Rates
Generating Facility	2023			2022			2021
Wildcat Point		3.1	%		3.1	%		3.1	%
North Anna		3.3			3.3			3.3
Clover		1.9			1.9			1.9
Louisa		3.1			3.1			3.1
Marsh Run		3.0			3.0			3.0

Schedule Of Operating Revenue

Our operating revenues by type of purchaser for the past three years were as follows:

	Year Ended December 31,
	2023		2022		2021
	(in thousands)
Operating revenues:
Member distribution cooperatives:
Formula rate:
Energy revenues	$	571,109	$	540,423	$	328,045
Renewable energy credits		375		259		36
Demand revenues		431,399		410,437		398,819
Total Formula rate revenues		1,002,883		951,119		726,900
Market-based rates:
Energy revenues		18,880		—		—
Demand revenues		2,568		—		—
Total Market-based rates revenues		21,448		—		—
Total Member distribution cooperatives revenues		1,024,331		951,119		726,900
Non-members:
Energy revenues (1)		33,760		42,818		45,255
Renewable energy credits		24,300		11,980		8,485
Total Non-member revenues		58,060		54,798		53,740
Total operating revenues	$	1,082,391	$	1,005,917	$	780,640

(1)Includes TEC’s sales to non-members from second quarter 2022 through first quarter of 2023. TEC's sales to non-members were $8.9 million and $29.4 million, respectively, for the years ended December 31, 2023 and 2022. TEC did not have sales to non-members in 2021.

Schedule Of Reduction In Revenues Utilizing Margin Stabilization

The following table details the reduction in revenues utilizing Margin Stabilization for the past three years:

	Year Ended December 31,
	2023		2022		2021
	(in thousands)
Margin Stabilization adjustment	$	3,298	$	2,255	$	11,614

Schedule Of Rate Changes Implemented To Address Under- And Over-Collection Of Energy Costs

The following table summarizes the changes to our total energy rate since 2021, which were implemented to address the differences in our realized as well as projected energy costs:

Effective Date of Rate Change	% Change
January 1, 2021	(15.9)
January 1, 2022	20.3
May 1, 2022	6.7
July 1, 2022	47.7
January 1, 2023	(1.5)
August 1, 2023	(14.8)
January 1, 2024	(7.0)