Upper panel of the plot shows population-weighted high and low temperature for each day (note: day-1 has high temperature only). Lower panel shows the forecast electricity demand for the service area of the company, in percentage of the normal demand expected under normal weather conditions during this 7-day period.
as observed at Pinehurst/Southern Pines, Moore County Airport
About Central EMC (NC): Serving more than 18,500 commercial and residential member-owners in five North Carolina counties, including Chatham, Harnett, Lee, Moore and Randolph counties. (see website)