No, first understand the concept of market clearing auctions[1], then understand that the there is a dispatch stack (that looks like something like this [2]), and that gas plants are the marginal producer required to balance the market, as they are not baseload (nukes) and not intermittent (renewables) but are dispatchable (ramp up/down capacity as need to balance the market).

[1]https://en.m.wikipedia.org/wiki/Market_clearing [2]https://www.sec.gov/Archives/edgar/data/1105055/000110465912...