SPP work group mulls multi-day market to boost coal dispatch
Platts has the details from a market work group meeting held via conference call this week, part of a continuing discussion in the SPP market about how to best compensate baseload generation as renewables and natural gas take up a larger share of the power mix.
Xcel’s Dixon told attendees that last Friday afternoon, about 41% of SPP’s generation was self-committed coal, and only about 9% was dispatched by SPP. Wind added almost 30%, and natural gas another 15%. “It’s just going to get worse and worse and worse, the more wind and solar resources we get,” Dixon said.
Coal generation in the Southwest Power Pool is falling, down from 59% in spring 2014 to about 41% this year. Simultaneously, wind generation has grown from about 15% last spring to 21% this year. A rise in wind power, combined with sustained low gas prices, has sent power prices on the SPP grid markedly lower in recent years, and the region lacks a capacity market that in other ISOs can deliver payments to baseload generators.