Electric Plant (Schedule Of Net Electric Plan) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	$ 2,566,211	$ 2,549,435
Accumulated depreciation	(1,173,293)	(1,116,531)
Net Property, plant, and equipment	1,392,918	1,432,904
Nuclear fuel, at amortized cost	16,340	19,155
Construction work in progress	80,088	56,075
Net Electric Plant	1,489,346	1,508,134
Wildcat Point [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	881,910	879,319
Accumulated depreciation	(151,206)	(125,832)
Net Property, plant, and equipment	730,704	753,487
Construction work in progress	1,600	245
Net Electric Plant	732,304	753,732
North Anna [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	427,567	418,073
Accumulated depreciation	(283,675)	(272,036)
Net Property, plant, and equipment	143,892	146,037
Nuclear fuel, at amortized cost	16,340	19,155
Construction work in progress	65,822	47,378
Net Electric Plant	226,054	212,570
Clover [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	706,831	708,240
Accumulated depreciation	(438,720)	(427,304)
Net Property, plant, and equipment	268,111	280,936
Construction work in progress	1,761	159
Net Electric Plant	269,872	281,095
Combustion Turbine Facilities [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	444,241	441,000
Accumulated depreciation	(263,802)	(254,425)
Net Property, plant, and equipment	180,439	186,575
Construction work in progress	2,234	227
Net Electric Plant	182,673	186,802
Other [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	105,662	102,803
Accumulated depreciation	(35,890)	(36,934)
Net Property, plant, and equipment	69,772	65,869
Construction work in progress	8,671	8,066
Net Electric Plant	$ 78,443	$ 73,935