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Helion announced on 10 May 2023 an agreement to provide Microsoft electricity from its first fusion power plant, expected online by 2028 and targeting 50 MW or more after a one-year ramp-up, with Constellation as power marketer. Copy claim link
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Machine-checked, not reviewed by an editor Stated in source Supported
Supporting evidence: primary · 1 source; Context: primary · 1 source
Date 2023-05-10 · announcement Figure measures generation capacity Stated dates (targets and terms, not events) target operation: 2028 Stage contracted Quantity at least · 50 MW (as worded: '50 MW or greater') Scope and limits An agreement for a plant that did not exist at the time; 2028 is Helion's projection. The release ties it to Microsoft's carbon-negative goal and does not mention data centres or AI. No price or term is stated.
The evidence 04 primary source Supports the claim
Helion announces world’s first fusion energy purchase agreement with Microsoft ↗ Helion Energy · 2023-05-10
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Source excerpt “Helion Energy (Helion) today announced an agreement to provide Microsoft electricity from its first fusion power plant.” Location in source paragraph beginning “EVERETT, WASHINGTON – MAY 10, 2023…”
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-30
Source details and check notes Authors Helion Energy Version Retrieved for the candidate pack on 2026-10-28 (SHA-256 b8f20e87ed21c117b681510fefda8014a43906113168fc9ae070a8b5c12c1e2d). helionenergy.com page as served on 2026-10-28 (redirected from /articles/ to /newsroom/); dateline EVERETT, WASHINGTON – MAY 10, 2023. Retrieved again at admission on 2026-10-30 (SHA-256 b8f20e87ed21c117b681510fefda8014a43906113168fc9ae070a8b5c12c1e2d, the same bytes). Its wording can change; earlier wording is not authenticated. Canonical address Open the canonical source ↗ Accessed 2026-10-28 Language English (en) Attribution Helion Energy, “Helion announces world’s first fusion energy purchase agreement with Microsoft”, 2023-05-10. Reuse No open redistribution licence asserted. Bibliographic metadata, editorial paraphrases and short attributed quotations (at most 50 words each). Recheck terms before wider redistribution. Check notes Candidate pack passage, compute, power and orbit (research/compute-power-orbit). The quotation (17 words) matched the text retrieved for the candidate pack on 2026-10-28 and again at admission on 2026-10-30, in a fresh retrieval whose SHA-256 equals the pack’s. Matching ignored differences of whitespace, case, quotation marks, dashes and Unicode compatibility forms, so the source’s typography can differ. No human editorial review. primary source Supports the claim
Helion announces world’s first fusion energy purchase agreement with Microsoft ↗ Helion Energy · 2023-05-10
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Source excerpt “The plant is expected to be online by 2028 and will target power generation of 50 MW or greater after a 1-year ramp up period.” Location in source paragraph beginning “The plant is expected to be…”
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-30
Source details and check notes Authors Helion Energy Version Retrieved for the candidate pack on 2026-10-28 (SHA-256 b8f20e87ed21c117b681510fefda8014a43906113168fc9ae070a8b5c12c1e2d). helionenergy.com page as served on 2026-10-28 (redirected from /articles/ to /newsroom/); dateline EVERETT, WASHINGTON – MAY 10, 2023. Retrieved again at admission on 2026-10-30 (SHA-256 b8f20e87ed21c117b681510fefda8014a43906113168fc9ae070a8b5c12c1e2d, the same bytes). Its wording can change; earlier wording is not authenticated. Canonical address Open the canonical source ↗ Accessed 2026-10-28 Language English (en) Attribution Helion Energy, “Helion announces world’s first fusion energy purchase agreement with Microsoft”, 2023-05-10. Reuse No open redistribution licence asserted. Bibliographic metadata, editorial paraphrases and short attributed quotations (at most 50 words each). Recheck terms before wider redistribution. Check notes Candidate pack passage, compute, power and orbit (research/compute-power-orbit). The quotation (25 words) matched the text retrieved for the candidate pack on 2026-10-28 and again at admission on 2026-10-30, in a fresh retrieval whose SHA-256 equals the pack’s. Matching ignored differences of whitespace, case, quotation marks, dashes and Unicode compatibility forms, so the source’s typography can differ. No human editorial review. primary source Supports the claim
Helion announces world’s first fusion energy purchase agreement with Microsoft ↗ Helion Energy · 2023-05-10
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Source excerpt “Constellation will serve as the power marketer and will manage transmission for the project.” Location in source paragraph beginning “EVERETT, WASHINGTON – MAY 10, 2023…”
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-30
Source details and check notes Authors Helion Energy Version Retrieved for the candidate pack on 2026-10-28 (SHA-256 b8f20e87ed21c117b681510fefda8014a43906113168fc9ae070a8b5c12c1e2d). helionenergy.com page as served on 2026-10-28 (redirected from /articles/ to /newsroom/); dateline EVERETT, WASHINGTON – MAY 10, 2023. Retrieved again at admission on 2026-10-30 (SHA-256 b8f20e87ed21c117b681510fefda8014a43906113168fc9ae070a8b5c12c1e2d, the same bytes). Its wording can change; earlier wording is not authenticated. Canonical address Open the canonical source ↗ Accessed 2026-10-28 Language English (en) Attribution Helion Energy, “Helion announces world’s first fusion energy purchase agreement with Microsoft”, 2023-05-10. Reuse No open redistribution licence asserted. Bibliographic metadata, editorial paraphrases and short attributed quotations (at most 50 words each). Recheck terms before wider redistribution. Check notes Candidate pack passage, compute, power and orbit (research/compute-power-orbit). The quotation (14 words) matched the text retrieved for the candidate pack on 2026-10-28 and again at admission on 2026-10-30, in a fresh retrieval whose SHA-256 equals the pack’s. Matching ignored differences of whitespace, case, quotation marks, dashes and Unicode compatibility forms, so the source’s typography can differ. No human editorial review. primary source Context only
Helion announces world’s first fusion energy purchase agreement with Microsoft ↗ Helion Energy · 2023-05-10
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Paraphrase the release says the facility will help Microsoft achieve its goal of being carbon negative by 2030.
Location in source paragraph on the facility
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-30
Source details and check notes Authors Helion Energy Version Retrieved for the candidate pack on 2026-10-28 (SHA-256 b8f20e87ed21c117b681510fefda8014a43906113168fc9ae070a8b5c12c1e2d). helionenergy.com page as served on 2026-10-28 (redirected from /articles/ to /newsroom/); dateline EVERETT, WASHINGTON – MAY 10, 2023. Retrieved again at admission on 2026-10-30 (SHA-256 b8f20e87ed21c117b681510fefda8014a43906113168fc9ae070a8b5c12c1e2d, the same bytes). Its wording can change; earlier wording is not authenticated. Canonical address Open the canonical source ↗ Accessed 2026-10-28 Language English (en) Attribution Helion Energy, “Helion announces world’s first fusion energy purchase agreement with Microsoft”, 2023-05-10. Reuse No open redistribution licence asserted. Bibliographic metadata, editorial paraphrases and short attributed quotations (at most 50 words each). Recheck terms before wider redistribution. Check notes Candidate pack passage, compute, power and orbit (research/compute-power-orbit). The paraphrase is Selekoa’s, written from the text retrieved for the candidate pack on 2026-10-28; it is not a quotation and was not machine-matched. The cross-family check found it faithful. No human editorial review. Status and meaning Editorial status. Not reviewed by an editor . An exploratory record that no editor has accepted. This status does not say whether a person has read any linked passage. Each evidence record above shows how it was checked.
Relation. A stated agreement on electricity supply, a power purchase, a plant restart or the development of generation, at the stage the parties state. It is not delivery of power, and an agreement to explore is not a contract.
Date. Date of the announcement, as the source gives it.
Record ID cpo-pw-helion-microsoft