Interpretation of the Chengdu Municipal Government Procurement Case and Winning Bid Solution for the Dongfeng D6 Blue-Plate 3-Cubic-Meter Sludge Tipper Truck: Cost Comparison Between Fuel-Powered and Battery-Electric Versions. In the context of integrated urban-rural sanitation development, sludge transport vehicles serve as the 'last-mile' link in wastewater treatment and pipeline desilting—vehicle selection directly impacts operational efficiency and lifecycle costs. Recently, a municipal sanitation department in Chengdu conducted a public tender for Dongfeng D6 blue-plate 3-cubic-meter sludge tipper trucks, focusing on evaluating the applicability of fuel-powered versus battery-electric variants. This article analyzes, based on actual delivery cases from Chengli Special Purpose Vehicle Co., Ltd. (hereinafter referred to as 'Chengli'), the differences between the two powertrain options in terms of cost, operational scenarios, and charging infrastructure requirements, supplemented by an FAQ section addressing common procurement concerns. I. Project Background and Procurement Requirements A municipal sanitation department in Chengdu plans to procure a batch of blue-plate 3-cubic-meter sludge tipper trucks for urban sewage pipeline desilting and sludge transportation. The project specifies the following core requirements: • Anti-corrosion Coating: Given the high concentrations of acidic and alkaline substances in sludge, the cargo body and piping must feature anti-corrosion treatment to extend service life; • Sealant Durability in Humid-Hot Environments: Chengdu experiences hot, humid, and rainy summers; sealants must resist corrosion and aging to prevent sludge leakage; • High-Load Performance During Rainy Season: Increased desilting frequency during the rainy season demands vehicles capable of sustained high-load operation with stable and reliable powertrains; • Blue-Plate Compliance & C-Class Driving License Compatibility: Gross vehicle weight must not exceed 4.5 tons to meet blue-plate regulatory requirements, facilitating flexible driver assignment. Ultimately, Chengli Special Purpose Vehicle won the bid with its fuel-powered Dongfeng D6 chassis solution, delivering five units of the CLW5040ZWXD6 sludge tipper truck (based on publicly available tender information, unit price approximately RMB 118,000). Chengli also provided a battery-electric variant for future reference; a detailed comparison follows. II. Fuel-Powered vs. Battery-Electric: Cost Comparison Analysis Based on Chengli’s product database and official announcement parameters (e.g., CLW5040ZWXD6), this analysis benchmarks lifecycle costs against actual procurement data from the Chengdu municipal sanitation department. Dongfeng D6 Blue-Plate 3-Cubic-Meter Sludge Tipper Truck: Cost Comparison Between Fuel-Powered and Battery-Electric Versions (Reference Public Tender Data) Comparison Item Fuel-Powered Version (CLW5040ZWXD6) Battery-Electric Version (Reference Chengli Electric Product Line) Purchase Price (Tax-Inclusive, Delivered) Approx. RMB 118,000 Approx. RMB 220,000–250,000 (varies per local procurement practice) Annual Operating Cost (Fuel/Electricity + Maintenance) Approx. RMB 42,000 (fuel consumption: 12 L/100 km; annual mileage: 20,000 km; fuel price: RMB 8/L) Approx. RMB 18,000 (energy consumption: 40 kWh/100 km; annual mileage: 20,000 km; electricity rate: RMB 0.6/kWh) Total 5-Year Cost (Purchase + Operations) Approx. RMB 328,000 Approx. RMB 310,000–340,000 Emission Standard China VI Zero Emissions Charging Infrastructure Requirement Refueling at gas stations—immediate refueling capability Requires supporting charging infrastructure (recommended: one 60 kW DC charger per vehicle, investment approx. RMB 30,000–50,000 per unit) Applicable Scenarios Operations without charging infrastructure, long-distance transport, continuous-duty applications Fixed-route operations, short-haul transport, urban areas with stringent environmental requirements Sealant