The floating power stations are gradually becoming popular in the market at present, especially the ones on the sea surface. However, due to the harsh natural conditions on the sea, such as the severe corrosion of seawater, heavy salt fog and obvious problems of marine organisms' adhesion, human beings are still exploring and developing them. These problems are all urgent to be solved. Currently, the sea surface projects are mostly conducting experimental arrays in the near-sea area, and the application of floating photovoltaic power stations systems is relatively rare. Generally, they are based on pile foundations. But the development direction will become increasingly broad.Floating solar installation systems are the most important parts of the solar power plant project.In order to avoid from the seawater corrosion,HDPE floaters are suitable to the sea harsh environment.
Main Equipment Schematic of the system
|
Item no. |
Part name |
picture |
Item no. |
Part name |
picture |
|
1 |
Main floater |
|
7 |
Rear supporting leg |
|
|
2 |
Equipment floater |
|
8 |
clamp |
|
|
3 |
Walkway floater |
|
9 |
Fixing plate |
|
|
4 |
Connecting floater |
|
10 |
North-south anchor truss |
|
|
5 |
Small walkway floater |
|
11 |
East west anchor truss |
|
|
6 |
Front supporting leg |
|
12 |
Special bolt and nut |
|
Parameters of the HDPE floaters
|
Part name |
material |
Wall thickness |
function |
Buoyancy(N) |
dimension |
|
Solar module floater |
HDPE |
2-5MM |
Solar module mounting buoyancy |
980 |
1036*166*1370 |
|
Walkway floater |
HDPE |
2-5MM |
0&M, buoyancy |
1196 |
2106*182*562 |
|
Equipment floater |
HDPE |
2-5MM |
0&M, buoyancy |
1127 |
712*183*1400 |
|
Connection floater |
HDPE |
2-5MM |
System connection buoyancy |
970 |
1820*182*562 |
|
D floater |
HDPE |
2-5MM |
System connection buoyancy |
206 |
910*182*551 |
|
Module bracket |
HDPE |
/ |
Solar module mounting |
/ |
/ |
|
Bolts and nuts |
HDPE |
/ |
Parts connection |
/ |
/ |
Properties of high density polyethylene(HDPE)
|
PROPERTIES |
Unit |
Value |
Test Method |
|
Melt Flow Rate |
|
|
|
|
@190°C85kg load |
|
0.45 |
|
|
@190°C&21.6kg load |
|
9.5 |
|
|
Density @ 23°C |
Kg/m |
954 |
IS0 1183 |
|
MECHANICAL PROPERTIES |
|
|
|
|
Tensile Modulus |
MPA |
1250 |
1S0 527-1,-2 |
|
Tensile Stress @ Yield |
MPA |
27 |
1S0 527-1,-2 |
|
Tensile Strain @ Yield |
% |
10 |
1S0 527-1,-2 |
|
Tensile lmpact Strength @-30°C (Notched) |
Kg/m |
92 |
IS0 8256 |
|
Hardness (Shore D) |
- |
60 |
IS0 868 |
|
FNCT(3.5 MPa,2 % lqepal BC/9,80°C) |
Hrs |
40 |
IS0 16770 |
Preliminary floating system layout design
PRODUCT ADVANTAGES
- Anti-aging
- Sun protection for UV rays
- Anti-slip design
- Sufficient buoyancy
- Tensile resistance
- Resistant to high and low temperature differences
- A design service life of 25 years
- There is a 5% residual value after retirement.
Frequent answers and questions
Q1.How many square meters of water surface are needed to install a 1-megawatt floating solar power station?
A1.An 1-megawatt floating solar power station requires approximately 7,500 to 8,000 square meters of water surface area.
Q2.Under what water depth is it suitable to install a floating power station on the water surface?
A2.It is only suitable to install floating solar power stations when the water depth is at least 0.5 meters.
Q3.Which type of solar power station generates more electricity, the one on water surface, the one on ground or the one on rooftops?
A3.The floating solar power station can generate 5% more electricity compared to other types of solar power stations under the same installed capacity.
Q4.Does the floating solar power station on water surface have any impact on water quality?
A4.The floating solar power station adopts food-grade high-density polyethylene materials, which are pollution-free to water quality.
Q5.Which of the following has a lower cost, the cost of a floating solar power station or that of a ground-based solar power station or a rooftop solar power station?
A5.The investment cost of the floating solar power station is slightly higher.
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