Company/Organization Profile

Chongqing Dongjiang Industrial Co., Ltd., founded in 2001 with a registered capital of RMB 297.3 million, is a backbone private enterprise deeply engaged in the cultural-tourism passenger shipping sector of the Yangtze River Three Gorges. The company has consistently upheld the philosophy of safe development and green shipping, operating in Yangtze waterway passenger transport for over three decades.

It has successively been awarded honors including "Outstanding Private Enterprise of Yuzhong District," Chongqing's "Advanced Enterprise in Water Transport," "Advanced Unit in Tourism," "Tourist-Satisfaction and Integrity Enterprise in the Tourism Industry," and "Advanced Unit in Waterway Traffic Safety Production."

For consecutive years, it has earned ministerial-level titles such as the "Five-Star Safe and Integrity Shipping Company" by the Changjiang Maritime Safety Administration, the "Safe and Integrity Shipping Company" by the Ministry of Transport, and the "Yangtze Integrity Port and Shipping Enterprise" by the Changjiang Administration of the Ministry of Transport.

Actively practicing the Yangtze River Protection Strategy, the company is driving the green and low-carbon transformation of the shipping industry and has built the "Meiwei Kaixuan," the first solar-powered luxury cruise ship on the Yangtze River. Through technological innovation, it empowers the high-quality development of the Yangtze Economic Belt, setting a benchmark for the green integration of transport and tourism in inland waterways.

机构简介

重庆市东江实业有限公司成立于2001年，现注册资金29730万元，是深耕长江三峡水上文旅客运领域的骨干民营企业。企业始终坚守安全发展、绿色航运发展理念，深耕长江水上客运三十余年，先后获评“渝中区优秀民营企业”、重庆市“水运工作先进企业”“旅游工作先进单位”“旅游行业游客满意诚信企业”“水上交通安全生产先进单位”等荣誉，连续多年获评长江海事“五星安全诚信航运公司”、交通运输部“安全诚信航运公司”、交通运输部长航管理局“长江诚信港航企业”等部级称号。公司主动践行长江大保护战略，聚力推进航运产业绿色低碳转型，打造长江首艘光伏发电豪华游轮“美维凯璇轮”，以技术创新赋能长江经济带高质量发展，树立内河绿色交旅融合发展标杆。

Project Overview

Current Situation: Traditional luxury cruise ships on the Yangtze currently rely mainly on pure diesel propulsion, resulting in high energy consumption, prominent exhaust and noise pollution, and insufficient energy efficiency. In addition, with densely distributed docks along the Three Gorges section and voyage distances varying greatly, the conventional propulsion model is difficult to adapt to segmented navigation conditions, leaving the industry without a mature and replicable low-carbon development model.

Cause Analysis: New-energy vessels require large upfront investment, and the technology for coordinated management and control of multiple energy sources is highly demanding. Having long prioritised operational benefits, the industry lacks sufficient impetus for low-carbon transformation, and its exploration of green shipping practices has lagged behind.

Improvement Goals: Build a new multi-energy hybrid luxury cruise ship integrating lithium battery energy storage, photovoltaic power generation, high-efficiency generator sets and an intelligent energy management and control system, enabling pure-electric navigation on individual segments to reduce fuel consumption and pollutant emissions; establish a benchmark for new-energy cruise ships on the Yangtze inland waterway, drive the green transformation of the Three Gorges cruise industry, and serve the overall goals of the Yangtze River Protection strategy and the "dual carbon" initiative.The implementation of this project is both an urgent response to the national "dual carbon" strategy and a necessary step to fill the gap in green technology for inland waterway shipping; it is also a key measure to solve the high-energy-consumption and high-pollution problems of traditional cruise ships and to lead the industry's transformation and upgrading. It is of significant practical importance for building Chongqing into a green transport benchmark and enhancing the competitiveness of the regional shipbuilding industry.

项目背景

问题现状：当前长江传统豪华游轮多依赖纯柴油动力，能耗偏高、尾气及噪声污染突出，能源利用效率不足；加之三峡航段码头密集、航距跨度不一，传统船舶动力模式难以适配分段航行工况，行业缺乏成熟可复制的低碳发展样板。

原因分析：新能源船舶前期投入大、多能源协同管控技术难度高，行业长期重运营效益、低碳转型动力不足，绿色航运实践探索滞后。

改进目标：新建一艘多能源混合动力豪华游轮，集成锂电储能、光伏发电、高效发电机组与智慧能源管控系统，实现分段纯电航行，降低燃油消耗与污染物排放；打造长江内河新能源游轮标杆，带动三峡游轮行业绿色转型，服务长江大保护与“双碳”建设大局。项目实施既是响应国家双碳战略、补齐内河航运绿色技术短板的迫切需要，也是破解传统游轮高耗能高污染难题、引领行业转型升级的关键举措，对打造重庆绿色交通标杆、提升区域船舶产业竞争力具有重要现实意义。

Project Implementation

Dongjiang Industrial Co., Ltd. has built the "Meiwei Kaixuan", China's first inland-waterway luxury cruise ship powered by photovoltaic (PV) generation, with a total investment of RMB 200 million. It made its maiden voyage at Chaotianmen Dock in September 2025, marking the Yangtze cruise industry's entry into the "PV+" era.

(I) Revolutionising the green propulsion system to achieve multi-energy integrated empowerment. To address the problems of high energy consumption and heavy pollution of the traditional single-energy propulsion system, the project pioneered an "oil-electric hybrid + photovoltaic generation" propulsion system for inland-waterway cruise ships, fundamentally revolutionising the traditional single-energy supply model.

High-efficiency PV panels covering 1,500 square metres are installed on the top deck, forming a 300 kW photovoltaic system that generates over 400,000 kWh annually on average, with PV power supplying more than 30% of the ship's total electricity demand. This is complemented by a 1,600 kWh energy storage battery bank and four 1,500 kW Weichai high-efficiency diesel generator sets (high-pressure common-rail), which rely on the battery's peak-shaving and valley-filling function to enable intelligent coordination among multiple energy sources.

The twin-engine, twin-propeller electric propulsion technology replaces traditional mechanical transmission, raising energy conversion efficiency by 20% and reducing navigation noise by 15 decibels. During periods of sufficient sunlight, a single generator set combined with the PV system is enough to meet the ship's entire electricity demand, reducing overall energy consumption by over 30% and significantly enhancing navigation energy efficiency and stability.

(II) Establishing an intelligent energy-efficiency system to improve the quality and efficiency of energy utilisation. To tackle the problems of high grid-connection losses and extensive operation and maintenance, the project adopts DC networking technology to resolve the multi-energy grid-connection loss issue, enabling seamless, intelligent switching among photovoltaic, energy storage and diesel generation.

A high-voltage shore power receiving system is installed, allowing the ship to shut down its own generator sets and rely entirely on shore power while at berth, achieving "zero emissions and zero noise" during berthing. A ship-wide intelligent energy management system is established to monitor and dynamically regulate all energy-consuming equipment in real time and optimise operating modes on demand.

Energy-saving LED lighting is adopted throughout the ship, cutting energy use by over 60% compared with traditional lighting. A digitalised, refined low-carbon operation and maintenance system is thus established, improving overall energy utilisation efficiency.

(III) Adhering to ecological construction standards to promote the integration of green development and cultural tourism. To address insufficient pollution control during construction and inadequate integration of culture and tourism, the project practises a whole-life-cycle ecological construction philosophy throughout, adopting advanced techniques such as sectional pre-assembly, high-precision positioning and inclined-way launching to effectively reduce construction pollution and material waste and extend the ship's service life.

Advanced domestic sewage treatment equipment is installed to strictly ensure that sewage is discharged in compliance with standards, reinforcing the ecological protection defence line of the Yangtze. Meanwhile, the project promotes the deep integration of green technology with regional culture and tourism, creating the first mobile "Riverside Courtyard" themed space on the Yangtze, which incorporates Western Sichuan courtyard culture and tea ceremony experiences, achieving the organic unity of ecological protection, cultural heritage and tourism experience.

项目实施

东江实业有限公司打造全国首艘内河光伏发电豪华游轮“美维凯璇轮”，总投资2亿元，2025年9月在朝天门码头首航，标志着长江游轮进入“光伏+”时代。

（一）革新绿色动力体系，实现多能融合赋能。针对传统单一动力能耗高、污染重问题，项目首创内河游轮“油电混合+光伏发电”动力体系，彻底革新传统单一供能模式。船舶顶层铺设1500平方米高效光伏板，搭载300KW光伏系统，年均发电量超40万度，光伏供电占全船用电量30%以上。配套1600kW/h储能电池组及4台1500KW潍柴（高压共轨）高效柴油发电机组，依托电池削峰填谷实现多能源智能协同运行。采用双机双桨电力推进技术，取代传统机械传动，能源转换效率提升20%，航行噪音降低15分贝。光照充足时段仅需单台机组搭配光伏即可满足全船用电，整体能耗压降30%以上，大幅提升航行能效与稳定性。

（二）搭建智能能效体系，提升能源利用质效。针对多能源并网损耗大、运维粗放问题，项目运用直流组网技术，解决多能源并网损耗难题，实现光伏、储能、柴油发电无缝智能切换。配备高压岸电受电系统，船舶停泊期间可停用自有机组、全程使用岸电，实现停泊“零排放、零噪音”。搭建全船智能能源管理系统，对各类耗能设备实时监测、动态调控，按需优化运行模式。全船普及节能LED灯具，较传统照明节能60%以上。构建数字化、精细化的低碳运维体系，能源利用效率提升。

（三）坚持生态建造标准，推动绿色文旅融合。针对建造过程污染管控不足、文旅融合不深问题，项目全程践行全生命周期生态建造理念，采用分段预组装、高精度定位、斜架下水等先进工艺，有效减少施工污染与材料损耗，延长船舶使用寿命。配套先进生活污水处理设备，严格保障污水达标排放，筑牢长江生态保护防线。同时推动绿色技术与地域文旅深度融合，打造长江首个移动“江上院子”主题空间，植入川西庭院文化与茶艺体验项目，实现生态保护、文化传承、旅游体验有机统一。

Project Outcome

Through multiple innovations in technology, model and management, this project has achieved a two-way breakthrough in energy saving and carbon reduction on the one hand and service quality improvement on the other, with notable quantified results.

The project saves 100 tonnes of fuel annually and cuts carbon dioxide emissions by over 300 tonnes and carbon monoxide by 3.9 tonnes per year, with an annual carbon reduction equivalent to planting 50,000 trees. Calculated over a 25-year whole life cycle, the cumulative carbon reduction could reach 25,000 tonnes, equivalent to planting 1.25 million trees.

Annual PV generation exceeds 400,000 kWh, shore power consumption decreases by 30%, overall energy consumption is reduced by 30%, and energy conversion efficiency is improved by 20%. Noise inside the ship's cabins is kept within 45 decibels.

Pure-electric navigation produces zero exhaust and low noise, and, combined with distinctive green cultural-tourism scenarios, greatly improves passengers' cruising experience and significantly enhances the quality of green services.

Innovation highlights:

First, technological pioneering — taking the lead in achieving large-scale photovoltaic application on inland-waterway cruise ships and multi-energy complementary power supply through DC networking, breaking through industry technical bottlenecks.

Second, model innovation — building a full-chain development model of "green propulsion + intelligent management and control + ecological construction + cultural-tourism integration" to fill the gap in the industry's green transformation.

Third, demonstration and empowerment — developing mature construction techniques, a quality control system and an energy consumption management mechanism that have been incorporated into the industry's key research cases, enabling wide replication and application in the green upgrading of inland-waterway vessels and providing long-term leadership for the low-carbon transformation of the Yangtze shipping industry.

Sustainability and replicability: The project has established a routine intelligent energy-consumption monitoring and operation and maintenance mechanism to ensure long-term stable operation.

Its multi-energy complementary technical route and ecological construction standards have been incorporated into the industry's key research cases and are ready for replication and promotion in the fields of inland-waterway cruise ships and passenger-cargo vessels, providing long-term leadership for the low-carbon transformation of the Yangtze shipping industry.

成果亮点

本项目通过技术、模式、管理多重创新，实现节能降碳、服务提质双向突破，量化成效显著。项目年均节约燃油100吨，年减排二氧化碳超300吨、一氧化碳3.9吨，年均减碳量等效种植5万棵树，若按全生命周期25年计算，累计减碳量可达2.5万吨，等效植树125万棵。年均光伏发电超40万度，岸电使用率下降30%，整体能耗降低30%，能源转换效率提升20%。船舶舱内噪音控制在45分贝以内，纯电航行零尾气、低噪音，搭配特色绿色文旅场景，极大改善游客乘船体验，绿色服务品质显著提升。

创新性亮点：一是技术首创，率先实现内河游轮规模化光伏应用与直流组网多能互补供电，突破行业技术瓶颈；二是模式创新，构建“绿色动力+智能管控+生态建造+文旅融合”全链条发展模式，补齐行业绿色转型短板；三是示范赋能，形成成熟的建造工艺、品控体系与能耗管理机制，纳入行业重点研究案例，可广泛推广应用于内河船舶绿色升级，长效引领长江航运产业低碳转型。

持续性与可复制性：项目建立了常态化智能能耗监测与运维机制，保障长期稳定运行；其多能互补技术路线和生态建造标准已纳入行业重点研究案例，具备在内河游轮、客货船舶领域复制推广的条件，长效引领长江航运产业低碳转型。

Project Highlights

This project delivers synergistic ecological, economic and social benefits.

Ecological and environmental value: The project continuously reduces fuel consumption, exhaust and noise pollution from shipping in the Three Gorges reservoir area, comprehensively lowering the disturbance of ship navigation on the ecology of the Yangtze River basin.

It saves 300 tonnes of fuel annually and reduces carbon dioxide emissions by over 1,000 tonnes, while shore-power berthing achieves zero emissions and zero noise, effectively safeguarding the water quality and aquatic ecological environment of the Yangtze.

At the economic level, the substitution of clean energy effectively reduces fuel and operation and maintenance costs, achieving dual gains in energy saving and cost reduction.

Economic value: The "Meiwei Kaixuan" has pioneered a "green energy + premium cultural tourism" integration model among Yangtze inland-waterway cruise ships, providing the industry with a green demonstration example of synergistically advancing shipping carbon reduction and cultural-tourism upgrading.

The average revenue per passenger per voyage has increased by about RMB 1,000, the booking rate in the first month after the maiden voyage reached 85%, and 30% of passengers come from groups with a preference for green tourism.

The substitution of clean energy effectively reduces the ship's fuel and operation and maintenance costs, greatly improves energy utilisation efficiency, and achieves dual gains in energy saving and cost reduction.

Social impact: The project is a benchmark practice for the green development of the Yangtze Economic Belt and the construction of an "electrified Yangtze", raising the green construction technical standards for inland-waterway cruise ships and popularising the concept of green travel.

Its mature models of multi-energy complementarity, intelligent energy saving and ecological cultural-tourism integration provide a high-quality template for the transformation of inland-waterway shipping and the transport-tourism integration industry in Chongqing and across the country, exerting significant radiation-driven and regional empowerment effects on the industry.

成果影响力

本项目生态、经济、社会效益协同凸显。

生态环境价值：项目持续削减三峡库区航运燃油消耗、尾气及噪声污染，全方位降低船舶航行对长江流域生态的扰动。年均节约燃油300吨、减排二氧化碳超1000吨，岸电停泊实现零排放零噪音，有效守护长江水质与水域生态环境。经济层面，清洁能源替代有效压降燃油及运维成本，实现节能降本双向增效。

经济价值：“美维凯璇”轮在长江内河游轮中首创“绿色能源+高端文旅”融合模式，为行业提供了航运减碳与文旅升级协同推进的绿色示范样本。单次航程客单价提高1000元左右，首航次月预订率达85%，30%客源来自绿色旅游偏好群体。清洁能源替代有效压降船舶燃油、运维成本，能耗利用效率大幅提升，实现节能降本双向增效。

社会影响：项目是长江经济带绿色发展、电化长江建设的标杆实践，刷新内河游轮绿色建造技术标准，普及绿色出行理念。其成熟的多能互补、智能节能、生态文旅融合模式，为重庆乃至全国内河航运、交旅融合产业转型提供优质样板，行业辐射带动与区域赋能作用显著。

Reviews & Honors

Evaluation and feedback: Since the maiden voyage, the ship's green, low-noise navigation environment and distinctive cultural-tourism experience have been widely praised by passengers, with passenger satisfaction significantly higher than on traditional cruise ships. The Chongqing Maritime Safety Administration and the China Classification Society (CCS) have highly commended the project, providing a dedicated "joint on-board inspection" service during the maiden voyage and recognising it as a benchmark project for local green shipping and high-quality development.

Media and industry recognition: Mainstream media including CNR (央广网，China National Radio) and Chongqing Daily have carried special reports, and the project has been rated as a landmark achievement in the green transformation of inland-waterway cruise ships. Building on the company's long-standing ministerial-level and municipal-level honours for safety, integrity and industry excellence, the project's demonstration credibility has been further consolidated, making it a high-quality demonstration vehicle for green shipping and transport-tourism integration on the Yangtze.

Awards and honours: The project's achievements have been selected as a Best Practice Case of Reform and Development in the Field of Ecological and Environmental Protection of Chongqing 2025 and a Typical Green and Low-Carbon Case of Chongqing 2025. The ship's maiden voyage marks an important step for inter-provincial tourist passenger transport in entering the "clean energy era". It pioneered the "green energy + premium cultural tourism" integration model among Yangtze inland-waterway cruise ships, providing the industry with a green demonstration example of synergistically advancing shipping carbon reduction and cultural-tourism upgrading.

评价与荣誉

评价反馈：项目首航后，船舶绿色低噪的航行环境、特色文旅体验广受游客好评，乘船满意度较传统游轮明显提升。重庆海事局、中国船级社（CCS）对项目给予高度肯定，首航期间开展“同船共检”专项服务，认定其为地方绿色航运、服务高质量发展标杆项目。

媒体与行业认可：央广网、重庆日报等主流媒体专题报道，获评内河游轮绿色转型标志性成果。依托企业多年获评的部级、市级安全诚信、行业先进等荣誉，项目示范公信力进一步夯实，成为长江绿色航运、交旅融合的优质示范载体。

奖项荣誉：相关成效入选2025年度重庆市生态环保领域改革发展最佳实践案例、重庆市2025年度绿色低碳典型案例。该轮首航是省际旅游客运输进入“清洁能源时代”迈出的重要一步，在长江内河游轮中首创“绿色能源+高端文旅”融合模式，为行业提供了航运减碳与文旅升级协同推进的绿色示范样本。