UJVN Limited has issued a notice inviting e-tender (Specification No: T-01/EE(Solar)/2026-27) for the tariff-based competitive setup of a 90 MW/225 MWh Standalone Battery Energy Storage System (BESS) near Chilla HEP under a BOOT model, with online bid receipt portals closing on 25-08-2026 at 4:00 p.m. and verification files hosted on uktenders.gov.in.