Zhejiang Province has released a new development guideline aimed at accelerating the growth of its marine clean energy sector by concentrating on four key industries: offshore wind power, offshore solar power, ocean energy, and coastal nuclear power.

The guideline seeks to cultivate new quality productive forces in the marine sector and establish a full-chain marine clean energy industry cluster.

By 2030, the province aims to push the scale of its marine clean energy and equipment industry past 300 billion yuan, with installed offshore wind capacity exceeding 10 million kilowatts.

The plan includes building a 10-million-kilowatt offshore wind base, commissioning landmark projects such as a wind power home port, achieving commercial application of hundred-megawatt-level tidal current energy, realizing contiguous "wind-solar co-location" development for offshore solar, and establishing an initial green hydrogen-ammonia-methanol industry.

It also targets nurturing more than 50 leading and specialized small-and-medium enterprises in the marine clean energy field, essentially building a national innovation hub, industrial cultivation cluster, and integrated development pioneer zone for marine clean energy.

Offshore Wind Power

For the upstream segment, the focus is on strengthening the foundation of raw materials and key components.

This includes consolidating advantages in high-voltage submarine cables, glass fiber and composite materials, and large castings, while enhancing supporting capabilities in high-grade marine steel, gear transmission, large-megawatt main bearings, and electrical equipment.

Key gaps to be filled include large blades and carbon fiber main beams, as well as high-voltage power devices.

Further efforts will bolster sub-segments such as blade structures, transmission and power generation, and submarine cable electrical systems to improve upstream chain integrity and stable supply capacity.

In the midstream segment, the goal is to upgrade complete machine manufacturing and engineering integration capabilities.

Priorities include developing large-megawatt offshore wind turbines, advancing research and engineering application of floating units, and improving wind resource and sea area survey and design, engineering procurement construction, and system integration.

This involves strengthening coordination among complete machines, foundation structures, submarine cable electrical systems, and transmission systems, and developing key equipment and systems for floating foundations, deep-water mooring, dynamic cables, and long-distance transmission.

For the downstream segment, the focus is on improving development, construction, and operational services.

This means promoting contiguous and large-scale development of offshore wind projects, refining engineering services such as project development and investment, foundation construction, turbine installation, submarine cable and booster station installation, port logistics, and grid connection, and enhancing full-lifecycle service capabilities including wind farm operation, inspection and maintenance, fault diagnosis, spare parts, and major component replacement.

In terms of technology, the guideline emphasizes research on larger, lighter, and typhoon-resistant offshore wind turbine units to improve safety and long-term reliability under complex sea conditions such as typhoons and strong waves.

It also calls for strengthening floating wind technology to enhance foundation stability, deep-water mooring reliability, and dynamic cable durability, and for improving ultra-long-distance, ultra-high-voltage flexible DC transmission technology to boost efficiency and stability for far-offshore wind power.

Additionally, it highlights research on long-lasting anti-corrosion and anti-fouling measures for marine environments, equipment condition monitoring, fault diagnosis, digital twins, drone and robot inspections, and major component replacement to raise intelligent operation and maintenance levels for far-offshore wind.

Cangnan No. 3 Offshore Wind Power Project

Development and utilization should follow a centralized, contiguous, and large-scale base approach, advancing deep-sea site development in phases and coordinating near-term demonstration projects with medium- and long-term reserve projects.

This aims to form a resource development pattern of stable near-shore development and continuous deep-sea expansion.

The guideline promotes coordinated development of offshore wind with offshore solar, ocean energy, energy storage, and green hydrogen production, exploring models such as wind-solar co-location, wind-fishery integration, and local green power consumption.

It also seeks to expand application scenarios like green marine fuels and green power computing, extend offshore green power to port shipping, petrochemicals, and coastal manufacturing, and improve comprehensive utilization of sea area resources and conversion of green energy.

Offshore Solar Power

For the upstream segment, the focus is on consolidating the foundation of solar manufacturing and electrical equipment.

This includes strengthening photovoltaic glass, EVA and POE films, backsheets, high-efficiency battery modules, inverters, box transformers, and switchgear and distribution complete sets, and developing marine weather-resistant modules and specialized marine electrical equipment.

In the midstream segment, the aim is to enhance offshore system and engineering construction capabilities.

Key areas include developing fixed and tracking brackets, floating platforms, floating structures, and mooring and anchoring specialized offshore equipment, improving sea area survey, system design, engineering procurement construction, offshore construction, and electrical installation capabilities, and promoting coordinated integration of modules, support systems, electrical systems, and energy storage.

For the downstream segment, the focus is on improving power station development and operational services.

This involves developing offshore solar project development, investment and operation, grid connection, and power trading services, and refining operation monitoring, intelligent inspection, fault diagnosis, and safety maintenance systems to enhance long-term operational support for offshore solar.

On the technology front, priorities include improving the long-term service performance of solar materials, modules, and electrical equipment in high-salt-spray, high-humidity, and strong-wave marine environments.

It also calls for research on wind-wave resistance, typhoon resistance, anti-overturning, and long-lasting anchoring technologies for floating solar to improve system stability and durability, strengthening joint wind-solar dispatch and grid connection control technologies to enhance coordinated operation, and conducting long-term real-sea tests under different sea conditions to verify equipment durability and operational reliability.

China Resources Power Daishan ShuangjianTu Phase III 302.3 MW Fishery-Solar Complementary Project

Development and utilization should focus on already developed sea areas such as enclosed aquaculture zones, offshore wind farm areas, and power plant confirmed warm water discharge zones, promoting pile-fixed and floating solar development according to local conditions.

In suitable offshore wind farm areas, floating solar demonstrations should be steadily carried out to expand offshore solar development space.

The guideline encourages deeper composite utilization such as wind-solar co-location, fishery-solar complementarity, and nuclear-solar coordination, promotes shared construction of offshore booster stations, transmission cables, energy storage, and operation and maintenance facilities, and expands application scenarios like offshore island solar microgrids and supporting power supply for offshore production and operation platforms.

Ocean Energy

For the upstream segment, the focus is on consolidating resource exploration and basic supporting facilities.

This includes strengthening resource surveys, exploration evaluation, and site design for tidal current, tidal range, and wave energy, and developing basic supporting facilities such as marine corrosion-resistant materials, anti-corrosion coatings, monitoring sensors, generators and power conversion equipment, and dynamic and submarine cables.

In the midstream segment, the aim is to enhance power generation equipment and project construction capabilities.

Key priorities include developing megawatt-level tidal current power devices, bidirectional large-capacity tidal range units, and wave energy devices such as oscillating water column and point absorber types, and improving engineering construction capabilities for power device and platform system integration, engineering procurement construction, offshore lifting and deployment, and submarine cable laying.

For the downstream segment, the focus is on improving testing and verification, operations, and supporting services.

This involves developing real-sea testing, performance evaluation, testing and certification, project development and operation, home port support, and marine engineering services, and refining professional services such as grid connection control, power station dispatch, operation and maintenance, underwater repair, and device recovery.

On the technology side, priorities include improving coordinated control, power smoothing, and stable grid connection for tidal current arrays, strengthening high-efficiency wave energy conversion, survival in harsh sea conditions, marine-grade sealing, ultra-low-speed power generation, and anti-corrosion technologies for key components, and enhancing bidirectional large-capacity power generation and power station efficiency expansion for tidal range energy.

Deep-Sea Marine Energy Equipment System Integration and Smart Laying Project

Development and utilization should focus on promoting array deployment and large-scale demonstration of tidal current units, forming a concentrated zone for tidal current resource development, equipment application, and engineering verification.

Leveraging existing tidal power station foundations, the guideline promotes efficiency expansion of tidal range energy, and based on wave resource conditions off Zhejiang's coast, orderly lays out wave energy demonstration projects.

Combined with scenarios such as island power supply, deep-sea aquaculture, breakwaters, and offshore wind farms, it promotes coordinated development of tidal current, wave energy, wind power, solar, and energy storage.

It also explores integrated deployment of wave energy devices with wind power foundations, breakwaters, and aquaculture facilities, advances connections between ocean energy and island microgrids, offshore integrated energy stations, and off-grid power supply systems, and forms an application pattern of multi-technology routes and multi-scenario demonstrations.

Coastal Nuclear Power

For the upstream segment, the focus is on strengthening the foundation of nuclear fuel and nuclear-grade materials.

This includes enhancing linkages in the front end of the nuclear fuel cycle, consolidating material foundations such as nuclear-grade stainless steel, nickel-based alloys, titanium and titanium alloys, and high-temperature alloys, strengthening characteristic supporting facilities like nuclear-grade pipes and fittings, nuclear-grade and special cables, and large nuclear-grade castings and forgings, and improving the supply capacity of special nuclear-grade materials.

In the midstream segment, the aim is to enhance nuclear power equipment and engineering construction capabilities.

Key priorities include developing nuclear-grade pumps and valves, pressure vessels, HVAC equipment, nuclear-grade fans, and instrumentation and electrical equipment, improving the supply capacity of key equipment such as safety-grade digital instrumentation and control and nuclear-grade main pumps, and strengthening professional services like nuclear island and conventional island installation, large equipment lifting, system commissioning, engineering procurement construction, and project management to boost nuclear power project construction and equipment integration capabilities.

For the downstream segment, the focus is on improving nuclear power operations, backend services, and comprehensive utilization.

This involves developing professional operation and maintenance services such as shutdown maintenance, in-service inspection, equipment condition monitoring, technical transformation, spare parts, and life cycle management, strengthening backend service support linkages for spent fuel storage and transport, radioactive waste treatment and disposal, and nuclear facility decommissioning, and expanding applications like medical isotopes, radiopharmaceuticals, irradiation processing, nuclear heating, industrial steam supply, and comprehensive utilization of warm water discharge.

On the technology side, priorities include improving high-temperature resistance, corrosion resistance, and long-life performance of nuclear-grade materials, tackling safety-grade digital instrumentation and control, key sensors, and intelligent equipment diagnosis technologies, strengthening research on condition monitoring, in-service inspection, aging assessment, and predictive maintenance for multi-reactor units to enhance long-term safe operation of complex units, and conducting forward-looking research on advanced reactor types such as small modular reactors and high-temperature gas-cooled reactors, while advancing technology verification for nuclear heating, hydrogen production, seawater desalination, energy cascade utilization, and multi-energy coordinated control.

Sanao Nuclear Power Phase I

Development and utilization should coordinate coastal nuclear power bases, promote efficiency improvements of operating units, orderly commissioning of projects under construction, and phased development of subsequent projects, and strengthen preliminary demonstration of future plant sites and medium- and long-term reserve research to form a development pattern linking operation, construction, demonstration, and reserves.

It calls for categorized layout of application scenarios such as residential heating, industrial steam supply, medical isotopes, irradiation processing, and nuclear medicine.

It also explores warm water discharge solar, seawater desalination, energy storage, green intelligent computing, and energy cascade utilization, promotes coordinated layout of nuclear power with offshore wind and offshore solar, and strengthens spatial coordination between nuclear power plant site protection zones and shipping lanes, ecological protection, marine ranching, and other marine energy projects.