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Constellation and Meta announced on 3 June 2025 that they had signed a 20-year power purchase agreement for the output of the Clinton Clean Energy Center in Illinois, 1,121 MW, beginning in June 2027, with Meta purchasing the plant's clean energy attributes. 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 2025-06-03 · announcement Figure measures generation capacity Stated dates (targets and terms, not events) delivery target: 2027-06 Stage contracted Quantity exact · 1,121 megawatts of emissions-free nuclear energy Scope and limits The power continues to flow onto the local grid; Meta buys the clean energy attributes. A 30 MW uprate is planned. Meta's representative ties the agreement to its AI ambitions; no data-centre site is named.
The evidence 05 primary source Supports the claim
Constellation, Meta Sign 20-Year Deal for Clean, Reliable Nuclear Energy in Illinois ↗ Constellation Energy · 2025-06-03
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Source excerpt “Constellation (Nasdaq: CEG) and Meta have signed a 20-year power purchase agreement (PPA) for the output of the Clinton Clean Energy Center” Location in source paragraph beginning “CLINTON, IL – JUNE 3, 2025…”
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-30
Source details and check notes Authors Constellation Energy Version Retrieved for the candidate pack on 2026-10-28 (SHA-256 624abd6f22b2b655e143cc2d4c36066157c0154b73d841c92370999d5d8e4ab2). Newsroom page as served on 2026-10-28; dateline CLINTON, IL – JUNE 3, 2025. Retrieved again at admission on 2026-10-30 (SHA-256 624abd6f22b2b655e143cc2d4c36066157c0154b73d841c92370999d5d8e4ab2, 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 Constellation Energy, “Constellation, Meta Sign 20-Year Deal for Clean, Reliable Nuclear Energy in Illinois”, 2025-06-03. 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 (22 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
Constellation, Meta Sign 20-Year Deal for Clean, Reliable Nuclear Energy in Illinois ↗ Constellation Energy · 2025-06-03
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Source excerpt “1,121 megawatts of emissions-free nuclear energy. Beginning in June of 2027” Location in source paragraph beginning “CLINTON, IL – JUNE 3, 2025…”
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-30
Source details and check notes Authors Constellation Energy Version Retrieved for the candidate pack on 2026-10-28 (SHA-256 624abd6f22b2b655e143cc2d4c36066157c0154b73d841c92370999d5d8e4ab2). Newsroom page as served on 2026-10-28; dateline CLINTON, IL – JUNE 3, 2025. Retrieved again at admission on 2026-10-30 (SHA-256 624abd6f22b2b655e143cc2d4c36066157c0154b73d841c92370999d5d8e4ab2, 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 Constellation Energy, “Constellation, Meta Sign 20-Year Deal for Clean, Reliable Nuclear Energy in Illinois”, 2025-06-03. 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 (11 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
Constellation, Meta Sign 20-Year Deal for Clean, Reliable Nuclear Energy in Illinois ↗ Constellation Energy · 2025-06-03
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Source excerpt “Meta is purchasing the plant’s clean energy attributes” Location in source paragraph beginning “The Clinton Clean Energy Center was…”
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-30
Source details and check notes Authors Constellation Energy Version Retrieved for the candidate pack on 2026-10-28 (SHA-256 624abd6f22b2b655e143cc2d4c36066157c0154b73d841c92370999d5d8e4ab2). Newsroom page as served on 2026-10-28; dateline CLINTON, IL – JUNE 3, 2025. Retrieved again at admission on 2026-10-30 (SHA-256 624abd6f22b2b655e143cc2d4c36066157c0154b73d841c92370999d5d8e4ab2, 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 Constellation Energy, “Constellation, Meta Sign 20-Year Deal for Clean, Reliable Nuclear Energy in Illinois”, 2025-06-03. 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 (8 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
Constellation, Meta Sign 20-Year Deal for Clean, Reliable Nuclear Energy in Illinois ↗ Constellation Energy · 2025-06-03
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Source excerpt “Securing clean, reliable energy is necessary to continue advancing our AI ambitions” Location in source paragraph beginning ““We are excited to partner with…”
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-30
Source details and check notes Authors Constellation Energy Version Retrieved for the candidate pack on 2026-10-28 (SHA-256 624abd6f22b2b655e143cc2d4c36066157c0154b73d841c92370999d5d8e4ab2). Newsroom page as served on 2026-10-28; dateline CLINTON, IL – JUNE 3, 2025. Retrieved again at admission on 2026-10-30 (SHA-256 624abd6f22b2b655e143cc2d4c36066157c0154b73d841c92370999d5d8e4ab2, 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 Constellation Energy, “Constellation, Meta Sign 20-Year Deal for Clean, Reliable Nuclear Energy in Illinois”, 2025-06-03. 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 (12 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
Constellation, Meta Sign 20-Year Deal for Clean, Reliable Nuclear Energy in Illinois ↗ Constellation Energy · 2025-06-03
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Paraphrase the release says the deal will expand Clinton's clean energy output by 30 megawatts through plant uprates.
Location in source paragraph on the deal
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-30
Source details and check notes Authors Constellation Energy Version Retrieved for the candidate pack on 2026-10-28 (SHA-256 624abd6f22b2b655e143cc2d4c36066157c0154b73d841c92370999d5d8e4ab2). Newsroom page as served on 2026-10-28; dateline CLINTON, IL – JUNE 3, 2025. Retrieved again at admission on 2026-10-30 (SHA-256 624abd6f22b2b655e143cc2d4c36066157c0154b73d841c92370999d5d8e4ab2, 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 Constellation Energy, “Constellation, Meta Sign 20-Year Deal for Clean, Reliable Nuclear Energy in Illinois”, 2025-06-03. 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-meta-constellation-clinton