XML 71 R27.htm IDEA: XBRL DOCUMENT v3.19.3
Income tax Income tax (Tables)
 9 Months Ended
Sep. 30, 2019
Income Tax Disclosure [Abstract]  
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] The significant differences between the U.S. Federal statutory tax rate and PGE’s effective tax rate are reflected in the following table:
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2019
 
2018
 
2019
 
2018
Federal statutory tax rate
21.0
 %
 
21.0
 %
 
21.0
 %
 
21.0
 %
Federal tax credits*
(14.8
)
 
(12.3
)
 
(13.8
)
 
(15.8
)
State and local taxes, net of federal tax benefit
6.5

 
6.5

 
6.5

 
6.5

Flow through depreciation and cost basis differences
1.0

 
(0.1
)
 
1.2

 
(2.3
)
Amortization of excess deferred income tax
(3.9
)
 
—

 
(3.5
)
 
—

Other
—

 
(0.6
)
 
0.2

 
3.0

Effective tax rate
9.8
 %
 
14.5
 %
 
11.6
 %
 
12.4
 %
 
 
 
 
 
 
 
 
* Federal tax credits consists of production tax credits (PTCs) earned from Company-owned wind-powered generating facilities. PTCs are earned based on a per-kilowatt hour rate and, as a result, the annual amount of PTCs earned will vary based on weather conditions and availability of the facilities. PTCs are earned for 10 years from the in-service dates of the corresponding facilities. PGE’s wind-powered generating facilities are eligible to earn PTCs until various dates through 2024.