Rates and Other Regulatory Activities Rates and Regulatory Activities (Tables)

3 Months Ended

Mar. 31, 2019

Rates and Regulatory Activities [Abstract]

Summary of Effects of Federal Tax Reform on Regulated Businesses [Table Text Block]

The following table summarizes the TCJA impact on our regulated businesses:

	Regulatory Liabilities related to ADIT
Operation and Regulatory Jurisdiction	Amount (in thousands)	Status	Status of Customer Rate impact related to lower federal corporate income tax rate
Eastern Shore (FERC)	$34,190	Will be addressed in Eastern Shore's next rate case filing	Implemented one-time bill credit (totaling $900,000) in April 2018 - Customer rates adjusted in April, 2018
Delaware Division (Delaware PSC)	$13,082	PSC approved amortization of ADIT in January 2019	Customer rates adjusted March 1, 2019. One-time bill credit to be implemented during the second quarter of 2019
Maryland Division (Maryland PSC)	$4,171	PSC approved amortization of ADIT in May 2018	Implemented one-time bill credit (totaling $365,000) in July 2018 - Customer rates adjusted effective May 1, 2018
Sandpiper Energy (Maryland PSC)	$3,803	PSC approved amortization of ADIT in May 2018	Implemented one-time bill credit (totaling $608,000) in July 2018 - Customer rates adjusted effective May 1, 2018
Chesapeake Florida Gas Division/Central Florida Gas (Florida PSC)	$8,346	PSC issued order authorizing amortization and retention of net ADIT liability by the Company on February 25, 2019	PSC Staff recommendation issued on January 24, 2019; final order was issued on February 25, 2019; No one-time bill credit or adjustment in rates will be applied; the tax savings arising from the TCJA rate reduction will be retained by the Company
FPU Natural Gas (includes FPU, Fort Meade, and Indiantown) (Florida PSC)	$19,478	Same treatment on a net basis as Chesapeake Florida Gas Division (above)	Same treatment on a net basis as Chesapeake Florida Gas Division (above)
FPU Electric (Florida PSC)	$5,950	In January 2019, PSC issued order approving amortization of ADIT through purchased power cost recovery, storm reserve and rates	TCJA benefit will flow back to its customers through a combination of reductions to the fuel cost recovery rate, base rates, as well as application to the storm reserve over the next several years