Estimated: Allen Acres Solar EIA plant 70055 reporting point, Allen Township / Ransom area, LaSalle County, Illinois; approximate project contextAvangrid Power LLC
May 1 is month-only precision for EIA’s[1] proposed May 2029 operation. Parent construction-start approval does not confirm commissioning or replace the target with a research date.
EIA plant 70055 lists Avangrid Power LLC’s Allen Acres Solar in LaSalle County at 150 MW, targeting May 2029. Iberdrola’s September 2026 results instead describe approval to start construction of a 210 MW Allen Acres project; the rating basis is unspecified.