name

Floating photovoltaics

Floating photovoltaic equipment

Structural analysis result (CD)

Floating body shapes of the conventional technology and developed technology

* Patent registration: 10-2172303 Design registration: 30-1067606
Division Polyethylene (PE)
(Conventional technology)		 Fiber glass reinforced plastic (FRP)
(Conventional technology)		 High density polyethylene (HDPE)
(Developed technology)
Structure performance Thickness is 3 mm or less
Weak for shock and sunlight		 Low reliability in material properties
Weak for shock and moisture		 Reliable material properties due to the isotropic material and resistance to shock
Productivity Continuous mass production is possible for the body Difficulty in production due to manual work
Styrofoam molding filling method 		Rotational molding for whole process
Mass production is possible
Constructability Lightweight, excellent constructability Good constructability Excellent constructability lightweight
Maintenance Requires frequent replacement of connections
Cracks and leaks at the edges		 Difficulty in maintenance
Field work is difficult		 Convenient repair in case of damage
Field work is easy
Durability Durability and chemical resistance concerns Excellent durability and chemical resistance Excellent durability and chemical resistance
Economics Not available for long-term use
Low economics due to excessive replacement and maintenance		 High cost and difficulty in mass production due to manual work Low cost and easy to establish mass production system
When evaluating the durability of the material, it is estimated that the strength will decrease by 20% after 100 years.
※ Evidence data: Korea Conformity laboratories, 2016.11, Article 24 Sanitary and Safety Standards of Water Supply and Waterworks Installation Act, Quality assurance team of Daelim Industrial’s Yeosu factory, 2019.03 Testing PE properties
※ Evidence data : Exova, France, 2015. 06, Durability evaluation, 1 year testing period