I believe it is for the DC interview, but there are also AC interties that may be for hourly fluctuations. https://en.m.wikipedia.org/wiki/Pacific_DC_Intertie

I believe it is for the DC interview, but there are also AC interties that may be for hourly fluctuations. https://en.m.wikipedia.org/wiki/Pacific_DC_Intertie https://en.m.wikipedia.org/wiki/Pacific_DC_Intertie