Rebuild Battery Subpack ESS

Dallas Area Rapid Transit (DART) is soliciting bids for the rebuilding of 26-SC-0042 Streetcar Energy Storage System (ESS) Battery Sub-Packs. The scope of work requires the contractor to replace original batteries with new Enerdel NMC 48V 50Ah 2.2kWh batteries while reusing existing cooling plates. The contract is based on a two-year term with an estimated quantity of 120 units. All rebuilding, servicing, and function testing must be performed at the contractor's facility, with rebuilt units returned to DART Materials Management. The contractor is responsible for providing sub-pack thermal padding, disposing of original components according to regulations, and submitting hard copy and PDF pass/fail function testing reports. Bids must be submitted electronically via the DART supplier portal by November 13, 2025, at 2:00 PM local Dallas time. Award considerations include a first-article testing process conducted by DART within 30 days of receipt to verify quality. Offerors must provide comprehensive documentation, including representations and certifications regarding business ownership, conflict of interest, and non-discrimination, as well as a business responsibility questionnaire and financial authorization. Compliance with DART's Brookville Streetcar repair, maintenance, and parts manuals is mandatory, and packaging must follow best industry practices to protect against shock and vibration during transit.