By Steve Haner
The State Corporation Commission’s (SCC) decision on whether Dominion Energy can build a new natural gas-fired power plant will depend on which expert or set of experts it believes, and which of the many computer models that dominate the testimony it judges best predict Virginia’s energy future.
Dominion has filed testimony to the SCC from its outside expert backed by computer modeling that concludes there is a risk to the reliability of our electric grid unless additional “dispatchable” generation resources are built. “Dispatchable” means that they are under operator control, can be turned on or off as needed, and are not dependent on the weather.
The wind, solar and battery resources that are demanded under the Virginia Clean Economy Act are not considered “dispatchable,” at least not as dispatchable as a natural gas plant that starts on ten minutes notice. But opponents of the gas plant application have hired several experts of their own, armed with their own models, who assure the SCC those generation assets coupled with heightened efforts to limit demand will be adequate to keep the lights on in the next decade and beyond.
On behalf of Attorney General Jason Miyares, who participates in utility regulation as the state’s consumer counsel, an expert witness that office often uses endorsed the Dominion application. Scott Norwood did not dive into the reliability debate, however, and noted Dominion only expects the plant to run about 16% of the time. It is designed to be a “peaker” plant, running only at times of constrained electricity supply.
