FAQ

In over 51 countries, we have set up fish cages. Please see the list

Sun Rise fish cage is famous for its resistance to wind and waves. In the past 20 years, it has never had a failure at sea. It has experienced three typhoons in the Philippine Sea within one year without being damaged, thus it has earned its reputation as the only surviving fish cage. Now it has a 100% market share in this sea area and there are approximately 3,000 pcs in total. In addition, it has a record of withstanding waves of 7 meters in the North Sea.

Sun Rise uses one-piece injection molding technology to reduce the risk of manual errors and has the following advantages:

• Strength and consistency: accessories are heated evenly during the process of one-piece injection molding and have no seams or welding joints, resulting in greater strength and better consistency.
• Anti-leakage: since there are no welding joints, they have lower risk of leakage and cracks.
• Production efficiency: one-piece injection molding enables mass production, shorter lead time, and high quality consistency.
• Appearance: the surface of the accessories is smooth and the appearance is neater and more beautiful.

No restrictions for square type. For round type, regular sizes are from dia.12m to 70m (circumference around 40m to 220m). For more details, please visit Offshore Fish Cage.

When using PE100, the max. operating temperature range of HDPE is -118°C to +120°C, but the recommended temperature range is between -60°C and +60°C.

Sun Rise have projects in hot or icy/snowy areas, including Indonesia, Malaysia, the United Arab Emirates, Saudi Arabia, New Zealand, Chile, Iceland, Norway, Finland, etc.

Fish cages come in a variety of shapes and designs to suit different site conditions. Common shapes are:

Square type:

• Traditional and most common fish cage shape, usually used for small scale or fry cultivation.
• Simple structure, easy to install and maintain, but rarely used in large-scale marine aquaculture.

Round type:

• Round type structure is more stable in waves and currents.
• They usually come in larger sizes and are suitable for large-scale farming, such as Atlantic salmon farming.

Both of the above types can be connected through walkways to form a large farming area. Welcome to contact us for more details.

Norway has been engaged in fish cage farming for more than half a century, and they have the world-leading technology in this section. NS 9415 certification is a Norwegian standard for the design, installation and operation of marine aquaculture facilities, especially fish cages. This standard was developed by the Norwegian Standards Association (NS) to ensure the safety and stability of facilities in the marine environment to avoid the risk of facility damage and fish escape. This standard puts forward specific requirements for the design, structural strength, material selection and installation methods of those facilities. The NS 9415 standard covers the following aspects:

Design: it stipulates the design requirements for facilities under different environmental conditions such as wind, waves, tides and sea currents to ensure that they can withstand the challenges of extreme weather and sea conditions.

Material & Structure: materials that are durable and suitable for the marine environment is required, and the stability and safety of the structure are regulated to prevent cage damage and fish escape.

Installation & Operation: the installation methods and operating procedures of the facilities are specified in detail to ensure that they can be installed correctly and operate safely.

Maintenance & Inspection: regular maintenance and inspection procedures for facilities are stipulated in order to detect potential problems in a timely manner and ensure the long-term operation.

Till 2024, Sun Rise floating system (complete and in progress) are over 400MW in total. They're currently installed in:

1. Taiwan
2. Japan
3. Laos
4. Thailand

Besides, projects in discussion are over 3GW, this proves we're highly trusted from our customers.

Sun Rise floating system has undergone comprehensive safety testing and multiple verifications to ensure its reliability and safety. Our process includes the following main aspects:

Wind tunnel test:
We conduct array tests to simulate the interaction between floaters to ensure that the floating system could maintain overall strength and stability under various wind conditions.

Computational Fluid Dynamics:
We cooperate with West Japan Fluid Engineering Laboratory, a professional Japanese submarine design team, and use advanced computer fluid dynamics to calculate the anchoring weight required for each location in each project based on the specific panels, hydrological data, wind speed, etc, to ensure that the anchoring is stable and safe.

Certification by Structural Engineer:
All calculation results are reviewed and calculated by professional structural engineers, and safety factors are included on this basis to further reduce risks and improve overall safety.

Through these comprehensive tests and verifications, we are committed to providing our customers with the safest and most reliable floating systems.

Sun Rise floating system has no limitations on water depth. We can design a suitable anchoring plan based on hydrological data. Currently, we have successfully implemented anchoring in reservoirs with water depth up to 120 meters, proving our capability.

In addition, our system is also suitable for areas that will dry up in dry seasons. Because we adopt the tube design, only a small area on ​the base pipes touches the ground. If it's a muddy area, our system will not get stuck. This is different from common floating system in the market that has a large contact area with the ground, as they're mostly floating blocks on the bottom, instead of pipes. Our floating system can float as long as the water depth exceeds 30 cms.

Sun Rise designed a variety of floating system structures for different wind speeds and wave heights to ensure its stability and safety in various environments. The following are the specific wind and wave resistance capabilities:

There are 3 type of floaters:

3 types of structures for different wave heights:

The warranty period of Sun Rise far exceeds the industry standard and is four times longer than that of other suppliers. The details are as follows:
HDPE floater & Racking system: 25 years
Anchoring: 5 years

The long warranty period represents our confidence in quality and commitment to customers.

Yes, anchoring design is one of Sun Rise’ advantages. We have 25 years of rich experience in offshore anchoring, with advanced computational fluid dynamics, we can accurately calculate the anchoring numbers required in each direction according to the environmental parameters of each case, and the selected floater structure to ensure the stability and security. In addition, the overall design of the floating system and anchoring can also avoid problems such as incompatibility and provide customers with a complete integrated solution.

Sun Rise floating system can be highly customized to match solar modules selected by customers, so there’s no limitation as to panel sizes and weights. Our floating system is suitable for following types as well:

• Smaller old-styled module
• M10 module
• G12 module
• Single facial module
• Bi-facial module

In addition, Sun Rise is the only floating solar structure that can be equipped with reflector boards. From an actual rest result, the patented reflector board can increase power output up to 7%.

Sun Rise floater is fully customized, and there’s no limitation to panel size and weight. The following items can be customized:

1. Floater length
2. Walkway and water way gap
3. Panel height (currently max. 160cm from water)
4. Panel angle (0-30 deg.)
5. Panel layout (vertical/horizontal)
6. Panel direction (facing south or east-west)

PE100 and PE80 are different grades of polyethylene materials. The main difference lies in their physical and mechanical properties. Simply put, PE100 has better performance.

• Tensile strength

PE100: higher tensile strength, usually above 10 MPa, suitable for higher pressure applications.

PE80: relatively low, usually around 8 MPa, suitable for medium pressure applications.

• Long-term pressure resistance

PE100: better long-term pressure resistance and longer service life. The max. working pressure it can withstand reaches up to 16 Bar.

PE80: lower long-term pressure resistance. The max. working pressure it can withstand is around 12.5bar.

• Application

PE100: suitable for pipeline systems requiring high strength and pressure, such as natural gas transmission pipelines, municipal water supply pipelines, and industrial pipelines.

PE80: suitable for medium and low pressure pipeline systems, such as agricultural irrigation systems, underground drainage pipelines and some industrial purposes.

• Service life

PE100: generally has a longer service life and can maintain stable performance in harsh environments. The expected service life is usually more than 50 years.

PE80: the service life is relatively short, but under normal use conditions, it can still reach 20 to 30 years.

• Cost

PE100: due to its superior performance and higher technical requirements, the cost of PE100 materials is usually higher.

PE80: relatively lower cost, suitable for applications with limited budget but less performance requirements.

• Density and Crystallinity

PE100: higher density and crystallinity, which means its molecular chains are more tightly arranged and the material is stronger and more durable.

PE80: the density and crystallinity are relatively low, and the rigidity and hardness of the material are slightly inferior to PE100.

Sun Rise uses new HDPE raw materials of PE100 grade, and the recommended operating temperature range is -60°C to +60°C. Within this range, HDPE pipes can maintain good physical and mechanical properties without significant performance degradation due to temperature changes.

Above +60°C it will result in a decrease in the material's strength and rigidity, as well as a decrease in its ability to withstand pressure, and accelerates the aging process of HDPE, thereby shortening its service life.

In environments below -60°C, HDPE pipes may become more fragile and more likely to break when impacted. Therefore, when using HDPE pipes in extremely low temperature environments, special attention needs to be paid to the protection of the materials and installation methods to reduce the risk of damage.

Welding methods are quite diverse. Visual inspection and on-site inspection are usually performed at the construction site. When third-party sampling is performed, tensile test and sampling inspection are more commonly used.

1. Visual inspection
   Appearance inspection:check whether the appearance of the welded joint is smooth and uniform, and whether there are obvious defects such as bubbles, cracks, inclusions, etc.
   Dimension inspection:measure the width and height of the weld to ensure it meets relevant specification requirements.
2. On-site inspection
   On-site observation and measurement:real-time monitoring of the welding process at the construction site to ensure that personnel operate in accordance with specifications and that welding parameters such as temperature, time, pressure, etc. are within the allowed range.
3. Destructive test
   Tensile test:do the test on the welded joints to measure its tensile strength and ensure that it meets the specification requirements.
   Bend test:bend the welded joints to check its performance and ensure that no cracks or breaks occur.
4. Pressure test
   Hydrostatic test:fill the welded pipe with water and pressurize it to test its sealing and strength under a certain pressure, and observe whether there is leakage or deformation.
   Air pressure test:similar to hydrostatic test, but using gas for testing. Also check the sealing and strength of the welded pipes.
5. Sampling test
   Sampling:take samples from the welded pipe and conduct detailed laboratory testing, including melt index, density, tensile strength etc., to ensure that the welding materials and processes meet the specification requirements.
6. Non-destructive test
   Ultrasonic inspection:use ultrasonic equipment to detect whether there are defects inside the weld, such as incomplete fusion, inclusions, cracks, etc.
   X-ray inspection:use X-ray equipment to inspect the internal structure of the weld to ensure there are no defects.

These test methods can be used comprehensively to ensure that the welding quality of HDPE pipes meets specification requirements. Specific testing methods and standards should be carried out according to relevant national or industry standards (such as ISO, ASTM, etc.).

There are 6 welding types:

Butt Fusion Welding
It uses a heating plate to heat the two pipe ends and butt them together and apply a certain amount of pressure until the joint cools and solidifies. Suitable for larger diameter HDPE pipes.

Electrofusion Welding
Use electric welding sleeves with embedded heating wires to connect the pipes to the fittings. The electric heating wire is heated by electric current, to melt HDPE and connect together. Suitable for small diameter pipe or in limited construction space.

Socket Fusion Welding
Heat the outside of the pipe and the inside of the fitting simultaneously, then insert the pipe into the fitting until the joint cools and solidifies. Suitable for smaller diameter pipes.

Flange Connection
Flange connections can be used when pipes of different materials need to be disassembled or connected. Weld the flange to the end of the HDPE pipe, and connect the two flange pieces with bolts to connect the pipes.

Compression Fittings
Use special screw coupling to connect HDPE pipes together. Mainly used in small diameter pipe systems, such as household water supply systems.

Mechanical Connection
Use special mechanical connectors, such as compression joints, clamps, etc., to mechanically connect HDPE pipes. Often used for temporary connections or situations that require frequent disassembly.

Each of these welding types has pros and cons. The site conditions and pipe diameters should be considered to decide which one is the most suitable.