{"instance":[{"timestamp":"2026-05-29 21:43:00","AECI":"208","LGEE":"156","MHEB":"-1562","MISO":"-5133","ONT":"-823","PJM":"-2778","SOCO":"88","SPA":"-79","SWPP":"-437","TVA":"-179"}],"RefId":"29-May-2026 - Interval 21:43 EST","MktDay":null}