Calpine makes changes in Deepwater plant air permit

The New Jersey Department of Environmental Protection will be taking comment until Nov. 6 on air permit changes for Calpine Corp.’s (NYSE: CPN) Deepwater power plant – changes in part due to the fact the plant no longer burns coal.

The Deepwater Generating Station (DGS) is located at 373 N Broadway, Pennsville. It is operated by Calpine New Jersey Generation LLC.

The facility’s current operating permit was approved in December 2011. This new modification would allow the following changes to the approved operating permit:

  • To reduce hours of operation for 878 million Btu/hour boiler (U1) from 8,760 to 1,752 hours per year. This boiler has a nominal capacity of 82 MW.
  • To reduce hours of operation for 820 million Btu/hour boiler (U3) burning No. 6 fuel Oil to 876 hours per year with total hours of operation for burning both fuel (#6 fuel oil and natural gas) of 3,504 hours per year. This boiler has a nominal capacity of 74 MW.
  • To include a start-up scenario for U3 with No. 2 fuel oil.
  • To remove the testing requirements for hydrochloric acid and hydrofluoric acid for U3 because the boiler no longer uses coal.
  • To remove continuous emission monitoring for SO2 for U3 because the boiler no longer burns coal.
  • Revise the hourly SO2 emission limits for natural gas firing in U1 and U3 to reflect the sulfur content in pipeline natural gas.

“The Deepwater Energy Center is located on the Delaware River in New Jersey,” said the Calpine website. “The original plant construction began in 1929. The two remaining operating units were constructed in the 1950s. Calpine acquired Deepwater in 2010 as part of its purchase of the Conectiv Energy assets. Unit 6/8 was commissioned in 1954, and Unit 1 in 1959. The units are conventional steam boilers with superheat and reheat sections. In keeping with its commitment to producing power in an environmentally sensitive fashion, Calpine discontinued burning coal at the site when it acquired the facility in 2010. The unit is configured to run primarily on natural gas with low sulfur diesel fuel oil as a back-up option.”

Calpine said this plant has 158 MW of peaking capacity.

About Barry Cassell 20414 Articles
Barry Cassell is Chief Analyst for GenerationHub covering coal and emission controls issues, projects and policy. He has covered the coal and power generation industry for more than 24 years, beginning in November 2011 at GenerationHub and prior to that as editor of SNL Energy’s Coal Report. He was formerly with Coal Outlook for 15 years as the publication’s editor and contributing writer, and prior to that he was editor of Coal & Synfuels Technology and associate editor of The Energy Report. He has a bachelor’s degree from Central Michigan University.