{"id":253529,"date":"2026-08-13T11:02:27","date_gmt":"2026-08-13T15:02:27","guid":{"rendered":"https:\/\/ibkrcampus.com\/campus\/?post_type=glossary-terms&#038;p=253529"},"modified":"2026-08-18T10:48:46","modified_gmt":"2026-08-18T14:48:46","slug":"independent-system-operator","status":"publish","type":"glossary-terms","link":"https:\/\/www.interactivebrokers.com\/campus\/glossary-terms\/independent-system-operator\/","title":{"rendered":"Independent System Operator"},"content":{"rendered":"\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-50\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/ndcdyn.interactivebrokers.com\/mkt\/?src=glossGenAcc&amp;url=%2FUniversal%2FApplication\" target=\"_blank\" rel=\"noreferrer noopener\">Open Account<\/a><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">An Independent System Operator, abbreviated ISO, is an entity that coordinates the operation of an electric grid and its wholesale market across a defined region, a role also filled by Regional Transmission Organizations. Among their functions is day-ahead unit commitment, meaning decisions about which generating units to bring online and where to position them, since thermal plants cannot start instantly and siting generation nearer to load reduces transmission congestion. Because these decisions are made a day in advance and hinge on expected temperature, improvements in next-day temperature forecasts have direct operational and financial consequences for grid operators and the parties serving load within them.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.interactivebrokers.com\/campus\/traders-insight\/ibkr-climate-energy\/energy-expenditure-implications-of-next-day-temperature-forecasts\/\">Energy expenditure implications of next-day temperature forecasts<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>An Independent System Operator, abbreviated ISO, is an entity that coordinates the operation of an electric grid and its wholesale market across a defined region, a role also filled by Regional Transmission Organizations. Among their functions is day-ahead unit commitment, meaning decisions about which generating units to bring online and where to position them, since thermal plants cannot start instantly and siting generation nearer to load reduces transmission congestion. Because these decisions are made a day in advance and hinge on expected temperature, improvements in next-day temperature forecasts have direct operational and financial consequences for grid operators and the parties serving load within them.<\/p>\n","protected":false},"featured_media":0,"parent":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"traders-glossary":[],"class_list":["post-253529","glossary-terms","type-glossary-terms","status-publish"],"pp_statuses_selecting_workflow":false,"pp_workflow_action":"current","pp_status_selection":"publish","acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.9 (Yoast SEO v28.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Archives Term | IBKR Glossary | IBKR Campus<\/title>\n<meta name=\"description\" content=\"Entity that coordinates the operation of an electric grid and its wholesale market across a defined region.\" \/>\n<meta name=\"robots\" content=\"index, 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