# Ironwood REDACTED Application The 1,110-page REDACTED Application of [[Entergy Arkansas]] for a Certificate of Environmental Compatibility and Public Need for the [[Ironwood|LC5]] generation unit, filed 2024-11-01. Filed before Act 373 (the GAJA Act), which is the key timing argument [[Palmer Rebuttal on Ironwood|Palmer's rebuttal]] relies on for Strategic Investment eligibility. ## Key takeaways - **LC5 is a 446 MW natural-gas combustion turbine**, simple cycle, EAL self-build. - Sited at the existing **Lake Catherine facility, Hot Spring County**. - **Replaces LC4** (522 MW gas, in service since 1970, required to deactivate by 2027-12-31 under federal consent decree). - Schedule: development 2024 Q1 – 2025 Q4; construction 2025 Q4 – 2028 Q2; **commercial operation 2028 Q4**. - Hydrogen co-blending capability up to 30% by volume with additional investments. - Interconnects via existing Arklahoma Substation – LC4 115 kV line; no new ROW. The Application's Purpose and Need section frames LC5 primarily as a federal-consent-decree-driven replacement of LC4 — not as data-center-load justified. ## Cross-references See the [[psc/docket-24-072-u-ironwood-2026-05-22/_overview|Docket 24-072-U production overview]] for the cross-cutting findings.