Government procurement case of Dongfeng Yizhan-style sewage treatment vehicle in Daqing: Cost comparison and solution analysis between fuel-powered and battery-electric versions. In Northeast China, the procurement of sewage treatment vehicles remains a key priority for municipal sanitation departments. For instance, the Urban Management Bureau of a district in Daqing City recently conducted a public tender for a batch of Dongfeng Yizhan-style sewage treatment vehicles, intended for urban drainage network maintenance and emergency sewage treatment. This article provides an in-depth analysis of this case based on publicly available tender information—comparing total cost of ownership, operational scenario differences, and charging infrastructure requirements between fuel-powered and battery-electric variants—and introduces Chengli Special Purpose Vehicle’s electric solution to support efficient, eco-friendly operations. For inquiries regarding specific models or customized solutions, please contact Zhang Yue, Sales Manager at Chengli Special Purpose Vehicle Co., Ltd. (Tel: ) or call the national hotline at . Case Background: Sewage Treatment Vehicle Procurement Requirements of a District Urban Management Bureau in Daqing According to publicly disclosed tender information, the Urban Management Bureau of a district in Daqing City plans to procure approximately eight Dongfeng Yizhan-style sewage treatment vehicles for underground pipeline desilting and emergency sewage treatment within the urban area. The project budget is capped at approximately RMB 2.705 million, with an estimated unit price of around RMB 300,000. Key requirements include: high-efficiency sewage treatment capability, operational reliability under low-temperature conditions down to -30°C, and rapid deployment to job sites. Consistent with local procurement practices, the chassis must demonstrate high reliability, while the superstructure must comply with national environmental protection standards. Chengli Special Purpose Vehicle Co., Ltd. (located in Chengli Automobile Industrial Park, Suizhou City, Hubei Province) has previously delivered similar vehicles to municipal authorities across multiple regions—for example, five combined water-sprinkler and fog-cannon trucks supplied to an industrial park. For this project, Chengli proposed a Dongfeng-based Yizhan-style sewage treatment vehicle solution, offering both fuel-powered and battery-electric configurations. Cost Comparison: Fuel-Powered vs. Battery-Electric Versions The table below compares cost and operational characteristics of the fuel-powered and battery-electric Dongfeng Yizhan-style sewage treatment vehicles, based on publicly available tender data, Chengli’s product database (e.g., model CLW5070GSSD6 specifications), and user feedback. Please note that actual pricing is subject to final procurement contracts. Comparison Item Fuel-Powered Version (Reference: CLW5070GSSD6 Chassis) Battery-Electric Version (Chengli Electric Solution) Procurement Unit Price (Based on Public Tender Data) Approx. RMB 300,000 Approx. RMB 380,000–420,000 (approx. RMB 350,000 after inclusion of charging infrastructure subsidy) Operating Cost (per 100 km) Diesel fuel: approx. RMB 120–150 (at current fuel prices) Electricity: approx. RMB 30–50 (based on local electricity tariff) Annual Maintenance Cost (Estimated) Conventional engine & transmission servicing: approx. RMB 15,000–20,000/year Motor & battery maintenance: approx. RMB 8,000–12,000/year Range/Endurance Up to 8–12 hours of continuous operation on a full tank Up to 4–6 hours of continuous operation on a full charge (requires recharging) Applicable Scenarios Remote areas lacking charging infrastructure; long-duration, uninterrupted operations Urban centers; short-distance, cyclic operations; zones with stringent environmental requirements Noise Level Relatively high (diesel engine operation) Low (electric drive—suitable for nighttime operations)