Fishery-solar Hybrid PV Mounting System Manufacturers

Adaptability and safety analysis of the support system in fishery-solar hybrid mode

Fishery-solar hybrid is a composite utilization model that combines aquaculture with photovoltaic power generation. It is common to build photovoltaic power stations above fish ponds, lakes or shallow water areas, while retaining the aquaculture function under the water body. In order to achieve efficient operation of this model, the design of the mounting system must meet the dual needs of "upper-layer power generation and lower-layer aquaculture", and put forward high requirements on structural strength, material anti-corrosion performance, and construction convenience.

Basic requirements for system design
The core of the fishery-solar hybrid PV mounting system lies in the compatibility of structural stability and aquaculture. The design needs to consider the following key factors:
* Load-bearing performance: The mounting system needs to support solar panels, cables, inverters and other equipment, and at the same time be able to resist wind pressure, water surface fluctuations, and long-term corrosion.
* Lighting optimization: Some aquatic products are sensitive to light, and the mounting spacing and component inclination angles need to be scientifically arranged according to fish habits and climatic conditions.
* Convenient for water body operation: The mounting structure should reserve necessary operating space for aquaculture activities, such as patrolling the pond, feeding, sampling, changing water, etc.
* Strong adaptability: The system should be able to adapt to different water depths, different breeding densities and water surface fluctuations, and the design should be flexible and adjustable.

mounting structure type and selection principle
At present, most fish-light complementary projects use pile foundation mounting systems, and common structural forms include H-shaped steel, C-shaped steel or aluminum alloy profiles:
* Single column structure: Suitable for shallow water areas or areas with hard bottom. A single steel pile and a beam form a three-dimensional support system, which has the characteristics of simple construction and relatively controllable costs.
* Double column structure: Used in places with large water depths or higher structural stability requirements. Double columns improve lateral wind resistance and are suitable for areas with frequent typhoons or severe fluctuations.
* Floating structure (under development): In some areas, explore the way to install mountings through floating platforms so that they float with the water level, but currently it is mainly used for pilot projects in non-breeding areas and has not yet been used on a large scale in fish-light complementary farms.
When selecting, it is necessary to comprehensively consider the water depth, bottom structure, construction method, economic cost and the needs of the fish species to be farmed, and formulate a mounting plan that suits local conditions.

Anti-corrosion and durability design
The photovoltaic mounting for fishery-photovoltaic hybrid is exposed to high humidity and high corrosion environment all year round, and the material must have good durability. Common anti-corrosion treatment methods include:
* Hot-dip galvanized steel: suitable for most aquaculture environments, with good economy, but strict requirements on thickness and zinc layer quality.
* Aluminum alloy profile: with good corrosion resistance and lightweight characteristics, suitable for projects with high requirements on mounting weight, but the cost is relatively high.
* Stainless steel material (304 or 316): suitable for highly corrosive waters (such as aquaculture waters with high salt content), long service life but high cost.
To ensure the service life, the mounting connection parts need to use anti-corrosion bolts, and do a good job of sealing and welding to prevent micro-corrosion from causing structural failure.

Load calculation and safety design in fish-photovoltaic complementary projects
The load calculation of the mounting system must include:
*The weight of photovoltaic modules and the load of system auxiliary equipment
*Wind load (based on the statistics of extreme wind speed at the project site)
*Live load (such as maintenance personnel inspection)
*The impact of water surface reflection and humidity on the long-term performance of materials
The design unit shall conduct structural stress simulation and wind tunnel test verification in accordance with standards such as the "Building Structure Load Code" and the "Photovoltaic mounting Design Code".
The mounting must still maintain structural stability during the high water level season. Some projects will also design anti-settlement foundations to enhance the grip of the mounting root.

Key points of construction and installation
Since the project is often located in waters such as fish ponds and lakes, the construction is difficult. The following are the key construction links:
*Piling in water: hydraulic piling or vibration piling should be selected according to the bottom soil to ensure the verticality and depth of the pile foundation.
*Beam assembly: modular prefabrication assembly is adopted to improve installation efficiency and reduce on-site operation time.
*Component installation: anti-slip working platform and special lifting equipment are required to ensure personnel safety and installation accuracy.
* Cable laying: Cables should be laid in mountings to avoid direct contact with the water surface or waterlogged areas to ensure the long-term stability of the electrical system.

Operation and maintenance management and structural monitoring
During the later operation of the fishery-solar hybrid system, it is necessary to regularly check the corrosion condition of the mounting, the looseness of the connecting parts, and the settlement of the pile foundation. Some projects have introduced a structural health monitoring system to collect data through sensors to achieve real-time evaluation of the structural status. Operation and maintenance work such as water cleaning and component cleaning should be carried out within the safe load-bearing range of the mounting to avoid structural damage caused by irregular operations.

Technical direction of sustainable development
In the future, the fishery-solar hybrid PV mounting system will develop in the following directions:
* Application of lightweight and high-strength materials: such as composite materials or high-strength aluminum profiles to reduce construction loads.
* Intelligent structure monitoring system: remote monitoring and early warning are achieved through the Internet of Things technology.
* Combined with automated operation and maintenance: deploy unmanned boat inspections, water robot cleaning and other solutions to improve operation and maintenance efficiency.
With the support of policies and the market, fishery-photovoltaic complementary projects are gradually expanding in scale. As one of the core structures, the design quality and operational stability of the support system directly affect the overall benefits of the photovoltaic system.

Fishery-Solar Hybrid PV Mounting: Development Demand for Multifunctional Integration
Against the backdrop of the continuous promotion of renewable energy, the upper space of aquaculture areas has been widely developed for the deployment of photovoltaic power generation systems, giving rise to fishery-solar hybrid PV mounting systems. This type of support system must simultaneously meet the technical requirements for the construction of photovoltaic power stations and the sustainable conditions of the aquaculture environment, achieving the dual benefits of "underwater fish farming and water power generation".

Applicable scenarios and environmental challenges
The fishery-solar hybrid PV mounting system is mainly deployed in water areas such as aquaculture ponds, lakes, and reservoirs. Due to the high humidity and high corrosive environment all year round, the structural materials need to have good anti-oxidation and anti-corrosion properties. At the same time, the support foundation design needs to cope with environmental loads such as soft foundations, water level fluctuations, typhoons, and snow accumulation, requiring the overall structure to have stable bearing capacity and wind and earthquake resistance.

Basic points of system structure design
The fishery-solar hybrid PV mounting system structure generally includes key components such as columns, water surface beams, rails, fixed components, and photovoltaic panels. Common installation forms are divided into pile foundation type and pontoon type. The pile foundation type is suitable for areas with shallow water depth and hard bottom, while the pontoon type is suitable for waters with large water level fluctuations and poor foundation bearing capacity. The mounting design should take into account the force distribution, arrangement angle, component maintenance convenience and lighting efficiency.

Material selection and anti-corrosion treatment
In aquatic environments, the fishery-solar hybrid PV mounting system has higher requirements for material durability. The mainstream materials include hot-dip galvanized steel, aluminum alloy and stainless steel. Among them, hot-dip galvanized steel is widely used due to its moderate cost and good anti-corrosion ability. Some key nodes also need to use weather-resistant sealants, caps and closed structures to further reduce the risk of rust and extend the life of the structure.

Installation and construction technical points
During the construction process, the fishery-solar hybrid PV mounting system should pay special attention to the positioning accuracy of foundation piling, construction arrangements during the water level fluctuation period and dynamic adjustment of floating supports. Under soft mud bottom conditions, screw piles, grouting anchors or prefabricated foundations can be used to improve foundation stability. During the construction process, water pollution should be avoided as much as possible to protect the aquaculture ecological environment.

Optimization strategy for photovoltaic module layout
The mounting system should not only carry photovoltaic modules, but also ensure the light transmittance and ventilation performance under the water body. When designing the module layout, the inclination angle and spacing should be determined according to the latitude, light angle and aquaculture type. Some systems are arranged in a north-south direction, which is conducive to uniform light distribution and reduces the impact of photovoltaic shadows on water temperature and water quality circulation.

Aquaculture ecological protection and structural integration design
The goal of fishery-solar hybrid PV mounting is not only energy output, but also needs to be coordinated with the aquaculture system. Some designs use elevated structures to lift photovoltaic modules to ensure fishery operation space, while reserving ventilation openings to improve the microclimate of the water body. To adapt to different aquaculture densities, the column spacing and board spacing of the mounting can be customized according to actual needs.

Operation and maintenance and system monitoring technology
Since the fishery-solar hybrid PV mounting system is in an outdoor humid environment all year round, its later operation and maintenance is particularly important. The system should be equipped with a remote monitoring module to achieve real-time monitoring of power station power, temperature, humidity, mounting displacement, etc. If necessary, drone inspection and infrared imaging technology can be combined to improve maintenance efficiency and reduce operation and maintenance costs.

Fusion solutions and enterprise service paths
Enterprises represented by Taizhou Dongsheng New Energy Technology Co., Ltd. usually provide a one-stop service system from project feasibility assessment, customized design, material procurement, on-site installation guidance to post-maintenance. The company has rich practical experience in fishery-solar hybrid PV mounting systems and can provide reasonable solutions based on different terrain and hydrological conditions to promote the integrated development of fishery and energy industries.

Technical specifications and future development trends
At present, the fishery-solar hybrid PV mounting system is still in the stage of gradual improvement of standards. Future development directions may include: lightweight structural design, modular installation, intelligent operation and maintenance, ecological symbiosis design, etc. In order to cope with more complex environmental conditions, the wind and earthquake resistance of the structure will continue to be optimized, and the trend of coordination between the system and the AI ​​dispatching system and the energy storage system is also gradually strengthening.