ICE-1-EM_Solar_Inverter_Replacement.pdf

This is an Independent Cost Estimate (ICE) prepared by the Regional Transportation District for the East Metro Solar Inverter Replacement project located at the East Metro Bus Facility in Aurora, Colorado. The project involves the design, supply, and installation of four 20kW solar inverters rated at 480 volts, three-phase that are currently out of service on the facility roof at 14100 E. Colfax Avenue. Associated with the inverter replacement are module-level power optimizers (288 units with rapid shutdown capability), rigid metallic tubing, AC and DC wiring, junction boxes, mounting hardware, and miscellaneous connectors and grounding materials. The scope also includes design and re-engineering services to evaluate and re-engineer all 22 inverters at the facility to support repowering of the entire photovoltaic system, as well as the preparation of city-approved drawings and commissioning.

The independent cost estimate totals $97,971.23, which includes a subtotal of $77,447.61 for materials and labor, with a 10 percent overhead and profit markup ($7,744.76) and a 15 percent contingency allowance ($12,778.86). The estimate incorporates labor costs of $19,200.00 and electrical permit, inspection, and plan review fees of $2,000.00. The document explicitly notes that the line items presented in the ICE are not the actual bidding items and that prospective bidders should base their proposals on the attached design drawings and detailed scope of work rather than using this estimate as a bid tab. The estimate was prepared on May 4, 2026, by Abhishek Phanse of the Regional Transportation District.