GE’s OpFlex enables class-leading performance
Platte River’s Rawhide Energy Station equips its four GE 7EA gas turbines with OpFlex technology to enhance performance and maintain strict emissions limits.
Overview
In need of a backup for their primary unit and a way to maintain strict control over emissions, Platte River decided to have GE implement their OpFlex Advanced Control Solutions on four 7EA gas turbines.
The challenge
Platte River required a backup of its 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.
The solution
To achieve Platte 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.
Outcomes
OpFlex increasing performance while maintaining efficiency
100+ MW
on grid in less than 10 minutes
less fuel burn during start up
less CO2 emissions
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 is now able to quickly start and load two 7EA gas turbines for approximately 117 MW in 10 minutes. These gas turbines can now realistically act as a backup for Rawhide’s primary unit and for system emergencies.
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