Lighter loads caused by milder weather in the Southwest Power Pool footprint combined with stronger wind output and weaker natural gas prices to push day-ahead on-peak locational marginal prices for electricity lower in May, compared with May 2018. Looking forward, June, July and August forward packages were mixed, with the North Hub’s forwards generally stronger than the South Hub. The SPP North Hub’s day-ahead on-peak locational marginal prices averaged about 15% higher than April’s, but about 5.5% lower than those of May 2018. SPP South Hub’s corresponding prices were almost 21% higher than April’s but about 5.7% lower than last May’s. The population-weighted average daily temperature in the SPP footprint in May was about 65 degrees F, up from April’s 59 degrees, but down sharply from last May’s 75 degrees F. Consequently, average daily peakloads this May were just about 31.2 GW, compared with April’s 28.8 GW and last May’s 36.8 GW.
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机译：与2018年5月相比，西南电力库区天气更温和，风力输出强劲和天然气价格疲软导致负荷较轻，5月电力的日间高峰时段边际电价较5月有所下降。展望6月，7月和8月份的远期交易组合好坏参半，北枢纽的远期交易总体上强于南枢纽。 SPP North Hub的日前高峰时段边际价格平均比4月份高出约15％，但比2018年5月低约5.5％。SPP South Hub的相应价格比4月份高出近21％，但比4月低5.7％。去年五月的。 5月SPP足迹中的人口加权平均日温度约为65华氏度，高于4月的59华氏度，但较去年5月的75华氏度大幅下降。因此，与5月相比，5月的平均日高峰负荷仅为31.2 GW 4月的28.8吉瓦和去年5月的36.8吉瓦。
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