Duke Energy Florida announced plans on Tuesday for three projects: a combined-cycle natural gas plant in Citrus County; installing two simple-cycle combustion turbine generators at the Suwannee Plant near Live Oak; and to retiring two coal-fired units at the Crystal River Energy Complex.
The new 1,640-MW combined-cycle natural gas plant in Citrus County is expected to cost approximately $1.5 billion, including financing costs.
If all regulatory approvals are received, construction is expected to start in early 2016 and will be located adjacent to the existing Crystal River Energy Complex. The plant's first 820-MW is expected to come online in spring 2018, and the second 820-MW is expected to be available by December 2018.
Duke Energy Florida also plans to retire Crystal River coal-fired units 1 and 2 due to changing federal environmental regulations. The retirements will take place when the Citrus County combined-cycle plant becomes operational.
The new 320-MW simple-cycle combustion turbine generators at the Suwannee Plant is expected to cost approximately $197 million, including financing costs. As part of Duke Energy Florida's 10-year site plan, the generators will enter operation in 2016.
The three current steam plants built in the 1950s are slated to be retired when the combustion turbine generators become operational.
In addition, the company will install chilling units at the Hines Energy Complex in Polk County by 2017, adding about 220-MW to the plant's existing 1,912 megawatts of generation. The anticipated cost is about $160 million, including financing costs.
The company will formally submit the plans to the commission for approval on May 27. A commission ruling is expected later this year.