Regulation and Rates Schedule of Graduated Sale of Rate Adjustment Mechanism (Tables)

6 Months Ended

Jun. 30, 2015

Regulation and Rates [Abstract]

Schedule of Graduated Scale of Rate Adjustment Mechanisms [Table Text Block]

Key components of the settlement will include the following changes to the PCA mechanism:

		Company's Share				Customers' Share
Annual Power Cost Variability		Over		Under		Over		Under
+/-	$17 million	100	%	100	%	—	%	—	%
+/-	$17 million - $40 million	35		50		65		50
+/-	$40+ million	10		10		90		90