Finding Flexibility: Cycling the Conventional Fleet

Debra Lew, Greg Brinkman, Nikhil Kumar, Steve Lefton, Gary Jordan, Sundar Venkataraman

Research output: Contribution to journalArticlepeer-review

41 Scopus Citations


Adding new generation, load, or transmission to the grid changes the operation of the incumbent power system. Wind and solar generation plants are no different, but their impact on the rest of the grid is exacerbated by the facts that wind and solar energy is nondispatchable and such generators produce variable output. And because wind and solar effectively bid into the market at very low or negative cost, they are preferred resources in the dispatch stack. They are used by system operators whenever possible, unless there are generator operating limits or transmission constraints.

Original languageAmerican English
Article number6634494
Pages (from-to)20-32
Number of pages13
JournalIEEE Power and Energy Magazine
Issue number6
StatePublished - 2013
Externally publishedYes

NREL Publication Number

  • NREL/JA-6A20-62041


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