Regulated Operations (Tables)

6 Months Ended

Jun. 30, 2020

Regulation and Rates [Line Items]

Schedule of Graduated Scale of Rate Adjustment Mechanism

Effective January 1, 2017, the following graduated scale is used in the PCA mechanism:

	Company’s Share				Customers' Share
Annual Power Cost Variability	Over		Under		Over		Under
Over or Under Collected by up to $17 million	100	%	100	%	—	%	—	%
Over or Under Collected by between $17 million - $40 million	35		50		65		50
Over or Under Collected beyond $40 + million	10		10		90		90

Subsidiaries [Member] | Natural Gas [Member] | Purchased Gas Adjustment [Member]

Regulation and Rates [Line Items]

Schedule of PGA Receivable Payable

The following table presents the PGA mechanism balances and activity for six months ended June 30, 2020 and 2019:

Puget Energy and Puget Sound Energy
(Dollars in Thousands)	At June 30,		At December 31
PGA receivable balance and activity	2020		2019
PGA receivable beginning balance	$	132,766	$	9,922
Actual natural gas costs	169,697		406,162
Allowed PGA recovery	(217,916)		(289,876)
Interest	2,385		6,558
PGA receivable ending balance	$	86,932	$	132,766