• Platte River – Power on Demand, Fast and Efficient

Challenge:

Platte River Power Authority is a not-for-profit wholesale electricity generation and transmission provider in Colorado. Platte River’s 668 MW Rawhide Energy Station consists of a primary coal fired unit with four GE 7EA gas turbines as peaking and backup units. Additional power sources include coal, hydro and wind.

Platte River required a backup of it’s primary unit as well as a backup for any other operating sources. Additionally,they wanted a hedge against short term market pricing fluctuations, while maintaining strict emissions controls.

 

Solution:

To achieve Platt River’s goals, GE installed OpFlex Fast Start software solution on two of the four GE 7EA, 65 MW gas units. This software-only modification allows for rapid starting and loading of the gas turbines, with a guarantee of 90% base load within 10 minutes, while reducing fuel burn and start up emissions.

 

Results: 

Platt River is now able to quickly start and load two 7EA gas turbines for approximately 117 MW in 10 minutes. These GTs can now realistically act as a backup for Rawhide’s primary unit and for system emergencies.

 

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