The Southwest Power Pool (SPP) set a new wind power peak of 9,948 MW on Dec. 19, which represented a penetration level of 33.5%, SPP said in a Twitter posting early Dec. 21.
Southwest Power Pool is a regional transmission organization (RTO) with headquarters in Little Rock, Ark.
It has members in a 575,000 square-mile service territory that includes parts of 14 states (Arkansas, Iowa, Kansas, Louisiana, Minnesota, Missouri, Montana, Nebraska, New Mexico, North Dakota, Oklahoma, South Dakota, Texas and Wyoming).
SPP has a generating capacity of almost 79,000 MW; 825 generating plants and roughly 56,000 miles of transmission line, according to its website.
SPP’s energy consumption during 2014 was fueled chiefly by coal at almost 59%; natural gas (19%); followed by wind (12%) and nuclear (8%). Hydroelectric accounted for more than 2% and the rest was split among fuel oil, solar and biomass.
According to the generation mix tracker on the SPP website, the RTO was getting more than 54% of its power from coal at roughly 12:55 p.m. CT on Dec. 21. Natural gas was second at that moment with more than 28%. Wind power had dipped to below 4%.