{"query":"electricity","topic":"data-centers","geography":"Virginia","count":1,"results":[{"schemaVersion":"2026-09-19","id":"guide:data-center-electricity-measurement","type":"guide","slug":"data-center-electricity-measurement","parentId":"guide:data-centers","title":"How much electricity do data centers use?","query":"electricity","answer":"A megawatt measures a rate of power. A megawatt-hour measures energy delivered over time. A proposed 500-megawatt connection is not evidence that a facility continuously consumed 500 megawatts, and it cannot be converted into annual electricity without an explicit load factor and operating period.","scope":"Bright synthesis","topic":"electricity-demand","topics":["data centers","electricity-demand","infrastructure","energy","evidence"],"aliases":["data center electricity","server farm power use","grid demand","megawatts","power generation","hyperscale electricity demand"],"intents":["measure electricity use","distinguish power from energy","understand grid demand"],"geography":"Virginia","locality":{"localDeterminationMade":false,"statement":"Bright has not determined the outcome for Virginia. The answer describes the relevant evidence and variables; use local utility, regulator, project, water, tax and land-use records for a local conclusion.","variables":["facility design and realized load","utility structure, tariff and cost allocation","generation mix, transmission and grid upgrades","cooling system, climate, watershed and reclaimed-water access","jurisdiction, incentives and negotiated agreements","construction phase, operating model and staffing plan"]},"sections":[{"id":"data-center-electricity-measurement-section-1","title":"Power and energy answer different questions","answer":["A megawatt measures a rate of power. A megawatt-hour measures energy delivered over time. A proposed 500-megawatt connection is not evidence that a facility continuously consumed 500 megawatts, and it cannot be converted into annual electricity without an explicit load factor and operating period.","Lawrence Berkeley National Laboratory estimates that U.S. data centers used 176 terawatt-hours in 2023, or 4.4% of national electricity consumption. Its 325–580 terawatt-hour range for 2028 is a scenario range under uncertain growth and efficiency assumptions—not a reading from the future and not a forecast for AI alone."],"evidenceIds":["lbnl-energy"],"canonicalUrl":"https://brightaifuture.com/guides/data-center-electricity-measurement"},{"id":"data-center-electricity-measurement-section-2","title":"Ask what sits inside the boundary","answer":["A facility meter includes servers, cooling, power conversion and other onsite loads. A regional estimate may combine colocation, hyperscale and smaller enterprise facilities. Queue requests can include projects that never operate. Bright keeps those categories apart before comparing numbers."],"evidenceIds":["lbnl-energy"],"canonicalUrl":"https://brightaifuture.com/guides/data-center-electricity-measurement"}],"facts":[{"id":"data-center-electricity-measurement-section-1","claim":"A megawatt measures a rate of power. A megawatt-hour measures energy delivered over time. A proposed 500-megawatt connection is not evidence that a facility continuously consumed 500 megawatts, and it cannot be converted into annual electricity without an explicit load factor and operating period.","qualifier":"Bright synthesis; read the linked section and limitations for scope.","evidenceIds":["lbnl-energy"]},{"id":"data-center-electricity-measurement-section-2","claim":"A facility meter includes servers, cooling, power conversion and other onsite loads. A regional estimate may combine colocation, hyperscale and smaller enterprise facilities. Queue requests can include projects that never operate. Bright keeps those categories apart before comparing numbers.","qualifier":"Bright synthesis; read the linked section and limitations for scope.","evidenceIds":["lbnl-energy"]}],"limitations":["The national estimate cannot predict one facility’s demand.","The 2028 range is modeled, not observed.","Electricity use alone does not establish emissions, grid cost or public value."],"evidence":[{"id":"lbnl-energy","title":"2024 United States Data Center Energy Usage Report","url":"https://datacenters.lbl.gov/publications/2024-lbnl-data-center-energy-usage-report","note":"National historical estimate, scenarios and documented uncertainty.","provenance":"government-or-regulator","supports":["data-center-electricity-measurement-section-1","data-center-electricity-measurement-section-2"]}],"relatedResources":[{"type":"record","id":"ohio-data-center-tariff","title":"Ohio’s contract for large new computing loads","url":"https://brightaifuture.com/discoveries/ohio-data-center-tariff"},{"type":"guide","id":"guide:data-centers","title":"Data Centers","url":"https://brightaifuture.com/data-centers"}],"canonicalUrl":"https://brightaifuture.com/guides/data-center-electricity-measurement","markdownUrl":"https://brightaifuture.com/read/guides/data-center-electricity-measurement.md","lastReviewedAt":"2026-09-19","publicationDate":"2026-09-19","lastUpdatedAt":null,"methodology":"Bright synthesis from the cited primary and institutional sources. Source checks are not independent replication, legal advice, engineering review, or a local impact determination."}]}