Construction of Dachen Island as a low- and zero-carbon island
大陈岛低零碳海岛建设
2026-09-23
作者:台州市生态环境局

Company/Organization Profile

Lead agency: As a key working department of the Municipal Government, Taizhou Municipal Ecology and Environment Bureau adheres to institutional guidance and coordinated management, and fully performs its ecological and environmental oversight duties. In implementing the “dual carbon” strategy, it coordinates efforts to address climate change, reduce greenhouse gas emissions, and promote synergistic reduction of pollution and carbon emissions. In pollution prevention and control, it upholds integrated protection and restoration of mountains, waters, forests, farmlands, grasslands, and deserts, and systematically advances comprehensive management of air, water, soil, and solid waste, while ensuring the bottom line of nuclear and radiation safety. In management and services, it strictly enforces environmental access requirements, and strengthens ecological and environmental monitoring, law enforcement, and public education. At the same time, it continues to deepen reforms, empower environmental governance through digitalization, and pool broad social synergies, so as to provide a solid ecological guarantee for building a beautiful and livable Taizhou.

Co-applicant: Jiaojiang Branch of Taizhou Municipal Ecology and Environment Bureau. It is a field office of the Bureau. Within its jurisdiction, it specifically implements the ecological and environmental systems, coordinates and oversees regional ecological and environmental supervision and law enforcement. It is responsible for supervising the implementation of emission reduction targets, carrying out pollution prevention and control, ecological protection and restoration, and radiation safety supervision, as well as organizing and implementing ecological and environmental monitoring and environmental publicity and education, and promoting social co-governance.

机构简介

牵头单位:台州市生态环境局作为市政府重要工作部门,坚持以制度为引领、以统筹为抓手,全面履行生态环境监管职责。在落实“双碳”战略方面,统筹推进应对气候变化、温室气体减排与减污降碳协同增效;在污染防治方面,坚持山水林田湖草沙一体化保护修复,系统推进大气、水、土壤、固体废物综合治理,守牢核与辐射安全底线;在管理服务方面,严把环境准入关,强化生态环境监测执法与科普宣传教育。同时,持续深化改革,以数字化赋能环境治理,广泛凝聚社会合力,为建设生态宜居的美丽台州提供坚实生态保障。

联合申报单位:台州市生态环境局椒江分局,是台州市生态环境局的派出机构。在辖区具体落实生态环境制度,统筹协调区域生态环境监管与执法。负责监督辖区减排目标落实,开展污染防治、生态保护修复及辐射安全监管等工作,并组织实施生态环境监测与环保宣传教育,推动社会共治。

 

Project Overview

Taizhou's Dachen Island is rich in natural resources, with a forest coverage rate of 66%. It is located in one of the country's most wind-energy-rich areas and boasts significant advantages in marine resources and coastal public spaces. The project takes Dachen Island as its implementation site, serving residents, tourists, students, and other groups, with a focus on ecological governance and low-carbon construction for all.

Current Problems: In terms of energy structure, low-carbon living scenarios have not yet been fully implemented, and the living environment needs improvement. In terms of marine carbon sinks, Dachen Island is abundant in shellfish aquaculture and has high forest coverage, offering great potential for marine blue carbon sinks. However, systematic development and market-based conversion have not yet been achieved, making it difficult to translate ecological resources into benefits for local prosperity. In terms of residents' daily life, there are challenges with waste disposal and marine pollution. In terms of public participation, the public lacks low-carbon awareness, low-carbon living has not yet become a habitual practice, and the atmosphere for universal environmental participation remains weak.

Cause Analysis: "Green electricity" energy has not yet been fully integrated into all aspects of production and daily life; Dachen Island's blue carbon resources lack a specialized and market-oriented development system; long-term mechanisms for waste disposal and marine pollution control are not yet well-established; and there is a lack of effective incentive mechanisms for public low-carbon and environmental behaviors, making it difficult to mobilize active participation.

Improvement Goals: Optimize clean energy to achieve green energy development; build eco-friendly facilities, prioritize the use of clean energy, and make green travel the norm; advance the "marine blue carbon" pilot program to fully utilize the island's blue carbon resources; promote public participation mechanisms such as blue carbon point incentives and blue carbon science education; expand green and low-carbon paths for increasing prosperity; disseminate the concepts of carbon peaking and carbon neutrality; and stimulate diverse groups to engage in pollution and carbon reduction actions, jointly building a low-carbon and zero-carbon green Dachen Island.

项目背景

台州市大陈岛自然资源丰富,森林覆盖率达66%,处于全国风能最富集地区之一,海洋资源和滨海公共空间优势显著。项目以大陈岛为实施载体,服务对象涵盖大陈岛居民、游客、学生等群体,聚焦生态治理与全民低碳建设。

问题现状:在能源结构方面,低碳生活场景尚未完全落地,生活环境有待提升。在海洋碳汇方面,大陈岛贝类养殖资源丰富、森林覆盖率高,海洋蓝碳汇潜力巨大,但尚未实现系统化开发与市场化转化,生态资源难以转化为富民收益。在居民生活方面,存在垃圾处置与海洋污染难题;在公众参与方面,群众低碳意识不足,低碳生活尚未形成自觉习惯,全民环保参与氛围薄弱。

原因分析:“绿电”能源尚未在生产生活等全方面落地;大陈岛蓝碳资源缺少专业化、市场化开发体系;垃圾处置与海洋污染治理的长效机制尚未健全;公众低碳环保行为缺乏有效激励机制,群众参与积极性难以调动。

改进目标:做好清洁能源优化,实现能源绿色发展;打造生态友好设施,优先使用清洁能源,让绿色出行变成常态;推动“海洋蓝碳”试点,让岛上的蓝碳资源得到充分利用;推行蓝碳积分激励、蓝碳科普等公众参与机制,拓展绿色低碳富民路径,宣贯双碳理念,激发多元群体参与减污降碳行动,共建低零碳绿色大陈岛。

 

Project Implementation

1. Addressing the Energy Structure Issue: Promoting Clean Energy Optimization and All-Electric Production and Living

We aim to establish a production model primarily powered by wind energy, setting a typical example for clean energy development on islands. We have built the world's first flexible low-frequency transmission project and the nation's first island-based "green hydrogen" integrated energy demonstration project, creating a stable and efficient green electricity supply system.

Within the province, we pioneered the innovative implementation of an all-electric living model for islands. On the basis of green electricity empowerment, we have creatively developed a value-co-creation ecosystem of "green electricity + blue carbon + ecological restoration." The entire island has completely phased out fuel-powered vehicles; ferry services have been converted to electric power, promoting full electrification of sea-land transport and making green travel a daily choice. We have implemented all-electric homestays, with 32 such homestays completed, covering electric replacements in heating, cooling, fresh-air systems, water supply, and lighting. We have also built fully electric aquaculture farms, promoting the transformation and upgrading of yellow croaker farming enterprises toward electrification and intelligence, and establishing "zero-carbon fishery farms." While improving the production and living environment, these efforts further advance the development of a low-carbon and zero-carbon green island.

2. Addressing the Underutilization of Marine Carbon Sinks: Promoting the "Marine Blue Carbon" Pilot Project and Establishing the "Dual-Carbon Dachen Digital Platform" and a "Dual-Carbon" Exhibition Hall

Dachen Island has launched a pilot project for a coastal carbon accounting system, establishing local standards for marine blue carbon. Comprehensive surveys and sampling have been carried out in regional sea areas and on land to systematically assess carbon sink potential and automatically account for marine carbon sinks. The Taizhou local standard Specifications for Carbon Budget Accounting in Coastal Areas has been issued and implemented, standardizing accounting and measurement methods for carbon budgets in coastal ecosystems, thereby filling the gap in quantitative standards for carbon budgets in coastal regions.

A "Dual-Carbon Dachen Digital Platform" has been built to achieve full-time and full-space monitoring of carbon sources and sinks on the island, enabling integrated analysis of energy and ecological data to provide decision-making support for the development of the blue economy. The "Dual-Carbon" Dachen Digital Exhibition Hall has also been completed and put into operation, serving to disseminate low-carbon concepts, promote the ecological island, and provide an important channel for advancing carbon sink trading and creating a model for low- and zero-carbon island development.

3. Addressing Waste Disposal and Marine Pollution: Implementing Synergistic Innovation in Pollution Reduction and Carbon Reduction

We have improved the island-wide waste treatment facilities. Two ecological waste treatment centers and 21 smart waste sorting stations have been built, enabling comprehensive treatment and resource utilization of all domestic waste and wastewater on the island. The low-carbon treatment of domestic waste and wastewater across the island is expected to reduce carbon dioxide emissions by 6270 tonnes annually.

Leveraging the "Blue Cycle" marine plastic waste management model, we dispose of marine litter near the island. Driven by the dual incentives of "high-price recycling + public-welfare jobs," local residents are encouraged to actively join the front-line collection teams, helping to tackle the challenge of marine pollution control.

4. Addressing Low Public Awareness and Limited Enthusiasm for Participation: Establishing a Blue Carbon Points Incentive Mechanism

Taizhou Dachen Island is the first scenic area in the province to launch a blue carbon points system. Through this system, participants earn exclusive blue carbon points for activities such as collecting marine litter, engaging in environmental public-welfare activities, and choosing green and low-carbon travel. These points can be redeemed for homestay vouchers, telecom data packages, bottled water, and other rewards, guiding both the public and businesses to adopt low-carbon practices. Jiaojiang Power Supply Company has innovatively launched a "Green Electricity Points" platform to promote the shared benefits of carbon footprint value, driving upgrades in the cultural tourism and fishery industries.

At the "Blue Cycle" Marine Ecological Civilization Education Base, recycled products from marine plastics are displayed. More than 70 research and educational activities have been organized, with cumulative participation exceeding 1000 person-times. University student practice teams have also visited Dachen Island to help co-build a green island.

项目实施

一、针对能源结构问题,推进清洁能源优化与全电生产生活。

打造以风电为主的生产模式,在海岛清洁能源发展方面作典型示范,建成国际首创柔性低频输电项目和全国首个海岛“绿氢”综合能源示范项目,构建起稳定高效的绿电供应体系。

在省内率先创新推行海岛全电生活模式。在绿电赋能基础上,创新打造“绿电+蓝碳+生态修复”价值共创生态。全岛全面淘汰燃油车,轮渡电能改造,推进海陆交通全电化,绿色出行成为日常选择;实施全电民宿,建成32家全电民宿,在供暖制冷、新风系统、供水照明等方面完成电能替代改造;建成全电水产养殖场,推动黄鱼养殖企业向全电化、智能化转型升级,建成“零碳渔场”。在改善生产生活环境的同时,进一步推动低零碳绿色海岛建设。

二、针对海洋碳汇利用不足问题,推动“海洋蓝碳”试点建设,建设“双碳大陈数字平台”和“双碳”展厅。

大陈岛开展滨海碳核算体系试点,建立海洋蓝碳地方标准,对区域海域和陆地开展全面调查采样,系统评估碳汇潜力、自动核算海洋碳汇。发布并实施台州市地方标准《滨海地区碳收支核算规范》,规范滨海生态系统碳收支核算、计量方法等内容,填补滨海地区碳收支量化领域标准空白。

建设“双碳大陈数字化平台”,实现海岛碳源碳汇全时域、全空间感知,统筹分析能源、生态数据,为蓝色经济发展提供决策支撑。建成并启用“双碳”大陈数字化展厅,传播低碳理念,宣传生态海岛,并为推进碳汇交易、打造低零碳海岛发展样板提供重要途径。

三、针对垃圾处置与海洋污染难题,实施减污降碳协同创新。

完善大陈岛全域垃圾处理设施。 建成2个垃圾生态处理中心、21座智慧垃圾分类亭,对全岛生活垃圾和废水进行综合处理与资源化利用。全岛开展低碳生活垃圾处置和废水处理,预计每年减少二氧化碳排放6270吨。

依托“蓝色循环”海洋塑料废弃物治理模式,对近岛海洋垃圾进行处置。以“高价回收+公益性岗位”双轮驱动,吸引岛上居民主动加入一线收集队伍,破解海洋污染治理难题。

四、针对公众低碳意识不足、参与积极性不高,建立蓝碳积分激励机制。

台州大陈岛是全省率先启动首个蓝碳积分的景区。通过建立蓝碳积分体系,群众参与海洋垃圾收集、环保公益活动、绿色低碳出行等获得专属蓝碳积分,可兑换民宿代金券、电信流量、矿泉水等,引导群众及商家践行低碳。椒江供电公司创新推出“绿电积分”平台,推动碳足迹价值普惠共享,带动文旅、渔业产业升级。

在“蓝色循环”海洋生态文明教育基地,展示海洋塑料再生产品;开展研学及主题教育活动70余场,累计参与超1000人次。大学生实践团队走进大陈岛,共建绿色海岛。

 

Project Outcome

Before Dachen Island embarked on its low- and zero-carbon development path, it relied mainly on traditional energy sources, with clearly identifiable carbon emission sources. With the completion of clean energy projects such as wind power and green hydrogen, its carbon emission structure has undergone a fundamental transformation. Blue carbon trading has achieved a breakthrough from scratch, allowing the island's ecological value to be truly "quantified" and "monetised," while the public now enjoys a more tangible low-carbon and environmentally friendly lifestyle.

Innovation in Model: First "Platform-based Verification + Public Auction" Blue Carbon Trading Model to Solve the Value Conversion Challenge.Dachen Island has abandoned the traditional third-party certification approach. Instead, it relies on the "Dual-Carbon Dachen Digital Platform," which uses satellite remote sensing, flux towers, and Internet of Things (IoT) technologies to achieve real-time, full-space monitoring and online accounting of carbon sources and sinks across the island. Through online trading, the blue carbon value is effectively converted into economic benefits.

Innovation in Technology: Two World-Class Power Projects Support the Development of a "Zero-Carbon Island".The island's 34 wind turbines have a total installed capacity of 25.5 MW, generating over 60 million kWh of electricity annually and reducing carbon emissions by 45000 tonnes per year. The nation's first island-based "green hydrogen" demonstration project and the world's first flexible low-frequency transmission submarine cable have been successively put into operation. The former achieves zero-carbon electricity-to-hydrogen and hydrogen-to-power processes, while the latter increases the transmission capacity of offshore wind power by 30%.

Innovation in Mechanism: First Blue Carbon Points System in the Province

Taizhou Dachen Island is the first scenic area in Zhejiang Province to launch a blue carbon points system. Through this system, participants earn exclusive blue carbon points for activities such as collecting marine litter, engaging in environmental public-welfare activities, and choosing green and low-carbon travel. These points can be redeemed for homestay vouchers, telecom data packages, bottled water, and other rewards, guiding both the public and businesses to adopt low-carbon practices and achieving mutually beneficial outcomes for all parties.

The above innovations collectively form a long-term operational mechanism for Dachen Island's low- and zero-carbon development. From local island practice to nationwide promotion, Dachen Island has developed institutionalised and standardised conditions that can be replicated in other coastal areas.

成果亮点

大陈岛在推进低零碳发展之前,主要依赖传统能源模式,存在明显的碳排放来源。随着风电、绿氢等清洁能源项目的建成,其碳排放结构发生了根本性转变;蓝碳交易实现从无到有的突破,海岛生态价值被真正“量化”和“变现”,公众也能更充分地享受到低碳环保的生活。

模式创新:首创“平台核证+公开拍卖”蓝碳交易模式,破解价值转化难题。大陈岛摒弃传统的第三方认证路径,依托“双碳大陈数字化平台”,通过卫星遥感、通量塔、物联网技术等,实现全岛碳源碳汇的全时域感知和在线核算。通过网上交易,将蓝碳价值有效转化为经济收益。

技术创新:两大世界级电力工程落地为“零碳海岛”发展提供支撑。 岛上34台风力发电机总装机25.5兆瓦,年均发电量超6000万千瓦时,年减碳4.5万吨。全国首个海岛“绿氢”示范工程和全球首条柔性低频输电海底电缆相继投运,前者实现清洁电力制氢及氢发电全过程零碳,后者可提高海上风电输送容量30%。 机制创新:台州大陈岛是全省率先启动首个蓝碳积分的景区。通过建立蓝碳积分体系,群众参与海洋垃圾收集、环保公益活动、绿色低碳出行等获得专属蓝碳积分,可兑换民宿代金券、电信流量、矿泉水等,引导群众及商家践行低碳,实现各方共赢。

上述几大创新共同构成了大陈岛低零碳发展的长效运行机制。从海岛实践到全国推广,大陈岛已具备向沿海地区复制的制度化、标准化条件。

 

Project Highlights

Ecological and Environmental Benefits:

Carbon emission reduction: In 2023, Dachen Island took the lead in the province in obtaining the greenhouse gas verification certificate issued by the China Quality Certification Centre (CQC), certifying that Dachen Island achieved carbon neutrality in 2022, with a reduction of 32597 tonnes of carbon dioxide emissions.

Marine waste reduction: A cumulative total of approximately 64000 tonnes of marine waste has been collected.

Marine ecological improvement: The forest coverage rate of Dachen Island exceeds 60%, and the proportion of seawater areas with Class I and Class II water quality reaches 70.2%. In 2025, the bays around Dachen Island were selected as national-level Beautiful Bays.

Breakthroughs in blue carbon trading: The province's first online transaction of marine blue carbon (shellfish) was completed, with 2223 tonnes of carbon sinks from the island's mussel aquaculture carbon sequestration project sold for 100500 yuan. The city's first forestry carbon sink transaction was also completed, involving 100 tonnes of carbon sinks from Dachen's colourful forest.

Social Impact Regional demonstration: Dachen Island was selected as a typical case of marine ecological protection and restoration by the Ministry of Natural Resources in 2025.

Cross-sector collaboration: A collaborative “blue carbon + judicial” mechanism has been explored, in which the purchase of carbon sinks is used as an alternative means for ecological and environmental damage restoration. In December 2024, the city’s first judicial purchase of a forest carbon sink project was completed, with 99 tonnes of carbon sinks from the camphor tree forest in Dachen’s Colourful Forest successfully purchased for a total of 5445 yuan.

成果影响力

生态环境效益:

碳减排:2023年,全省率先获得中国质量认证中心颁发的大陈岛温室气体核查证书,认证2022年大陈岛实现了碳中和,减少二氧化碳排放32597吨。

海洋废弃物减量:累计收集海洋废弃物约6.4万吨。

海洋生态改善:大陈岛森林覆盖率超60%,海水一、二类水质比例达70.2%;2025年大陈岛诸湾入选国家级美丽海湾。

蓝碳交易突破:完成浙江省首笔海洋蓝碳(贝类)线上交易,大陈岛贻贝养殖固碳项目2223吨碳汇以10.05万元成交;完成全市首笔林业碳汇交易,大陈彩色森林100吨碳汇。

社会影响:

区域带动:大陈岛入选自然资源部2025年海洋生态保护修复典型案例。

跨部门协同:探索“蓝碳+司法”协同机制,以认购碳汇方式替代生态环境和资源损害修复。2024年12月完成台州市首笔森林碳汇项目司法认购,大陈岛彩色森林香樟林碳汇项目99吨碳汇量以总价5445元成功认购。

 

Reviews & Honors

International and National Awards and Honours Received by the Project

2023: The article Exploring “Marine Blue Carbon” Reform: Taizhou Paves a New Path for Two Mountains Theory on Islands was published in Reform Internal Reference, a journal issued by the National Development and Reform Commission (NDRC).

2023: The “Blue Cycle” initiative was awarded the United Nations’ Champions of the Earth Award.

2023: The assessment model for the marine blue carbon system was published in a sub-journal of the internationally renowned journal Nature.

2025: The bays around Dachen Island were recognised as National-level Beautiful Bays.

2025: The case study Drawing from Nature, Co-creating a Beautiful and Harmonious Island was selected for inclusion in the Sustainable Development Economic Journal and was officially launched at the World Conservation Congress (WCC) held in Abu Dhabi, UAE.

2025: The pilot project for standardisation of carbon reduction in the new energy and environmental protection industry park in Taizhou, Zhejiang, was selected as a national carbon emission standardisation pilot project for 2025.

2026: The case study Green Electricity Empowers Islands: Dachen Island’s Low-Carbon Transition Practice, submitted to the “2026 Climate Action Eco-Partnership Conference,” was selected as a typical case in the “Carbon Path Future – 2025 Climate Action Typical Cases” initiative.

评价与荣誉

项目获得的国际级、国家级相关奖项荣誉:

2023年,《探索“海洋蓝碳”改革 台州趟出海岛两山新路径》在国家发改委出版的《改革内参》中刊登。 2023年,蓝色循环荣获联合国荣誉 “地球卫士奖”。

2023年,海洋蓝碳系统的评估模型在国际顶级期刊《Nature》子刊发表。

2025年,大陈岛诸湾获评国家级美丽海湾。

2025年,“取法自然,共绘和美海岛”案例,入选《可持续发展经济导刊》,并在阿联酋阿布扎比举办的世界自然保护大会(WCC)上正式发布。

2025年,浙江台州新能源与环保行业园区降碳标准化试点入选2025年度国家碳排放标准化试点项目。

2026年,在“2026气候行动生态伙伴大会”推送的《绿电赋能海岛,大陈岛低碳转型实践》案例入选“碳路未来-2025气候行动典型案例”。