CORPORATE PROFILE & BUSINESS PORTFOLIO FLOATING PV DESIGN & QUALITY CHALLENGES

Transcription

1 CORPORATE PROFILE & BUSINESS PORTFOLIO FLOATING PV DESIGN & QUALITY CHALLENGES

2 Benefits of Floating Solar Power Generation Regardless of the land price Using idle water surface owned by the Gov t Solving civil complaints Cooling effect by low water temperature Reflection and distraction on the water surface Increased efficiency about 10% (source: K-Water) Minimizing the destruction of natural green Excellent results in algae prevention Eco-friendly structure (ex. Spawn for underwater creatures) New demands in solar and composite materials Job creation in maintenance field in rural areas Artificial islands, natural learning etc. creation

3 Core Technology of Floating Solar Systems Conventional solar power generation on land is expanded to water surface. Floating technology is added up to the existing solar power technology. Requires technical capability to secure structural stability and durability on the water up to 20 years. Analysis and engineering of structures to ensure safety. Solar Power Plant Technology Floating Technology Mooring system to fix the structures. PV module suitable for the water environment. Underwater cabling + connection system.

4 Top 15 floating solar PV plants worldwide Rank Size (kw) Name of reservior (lake) / Name of Plant Country City/Province Operating from Coal mining area of Huainan City China Anhui Province April, Kawashima Taiyou Solarpark Japan Saitama October, Queen Elizabeth II reservoir UK London March, Otae Province South Korea Sangju City October, Jipyeong Province South Korea Sangju City October, Godley Reservoir Floating Solar PV UK Godley January, Tsuga Ike Japan Mie August, Sohara Ike Japan Mie March, Sakasama Ike Japan Hyogo April, Reservior in Kumagaya city Japan Saitama December, Kinuura Lumberyard Japan Aichi February, Yado Ooike (Sun Lakes Yado) Japan Hyogo January, Hirono Shinike Japan Hyogo September, Yakenoike Japan Hyogo July, Nishi Hiraike Japan Hyogo April, 2015

5 Design Configuration (Assembly Types)

6 Configuration Optimum Design for High-durability Wind load and water surface motion consideration Repetitive unit assembly for easy construction + quality High-durable, high-strength structure to cope with - humidity, rust, saline environment Durability secured and proven in the fatigue environment caused by frequent movement of water surface. Design for Structural Stability Optimum frame configuration to simplify load transfer channel. Lightweight materials and technology to improve workability. High-durable frame members. Proven safety through structural & fluid analysis. Fatigue test under 2 million cycles of dynamic load, wind tunnel test, and various load resistance & performance test to secure structural safety. Flat Frame Floating Body

7 Configuration The structural members (materials) are eco-friendly, high-durability FRP suitable for the wet and humid floating environment. The structure satisfies the IFS method of NET #758 that has the optimum configuration to support the solar power module. Structure & mooring connection Footrest Vertical member Solar power module Maintenance area Floating body connection Solar power module bearing member Floating body Solar power module supporting member Diagonal bracing

8 Configuration Details Lateral Beam (Solar Module Bearing Member) Floating Body Vertical Member Solar Module Supporting Member Unit Connection Vertical Member Floating Member Solar Module Supporting Member Unit Connection

9 Stress ( ) Configuration (Structure Material Types) Steel Aluminum PE (Polyethylene) Fiber-Reinforced Plastic (FRP) Steel FRP Composite Strain ( )

10 Configuration (Structure Material Types) Structural Members (PFRP) Vertical Members (SMC FRP)

11 Mooring System Multiple auxiliary floating bodies Uses multiple auxiliary floating bodies. Uses multiple auxiliary weights. Operated solely by the gravity of auxiliary weights without any mechanical system. Suitable for sites with deep water and big difference in water level. Auxiliary mooring structure Auxiliary weights and mooring anchors are connected through mooring lines. Indirect areas are reduced through auxiliary structures. Operated solely by the gravity of auxiliary weights without any mechanical system. Suitable for sites with deep water and big difference in water level.

12 Environmental Impact Assessment

13 Environmental Impact Assessment

14 Construction Process Material Delivery Unit Build-up

15 Construction Process Dispatching Unit Assembling

16 Construction Process Mooring Completion

17 Design Samples in Korea 30kWp Floating Solar Power System, Cheongho Lake, Buan, Jeonbuk Korea Rural Community Corporation, 2012

18 Design Samples in Korea 1,000kWp Floating Solar Power System for Water Inlet at Dangjin Thermal Power Plant, East-West Power Co., Ltd., 2013

19 Design Samples in Korea 100kWp Tracking Floating Solar Power System for Hapcheon Dam, Gyeongnam K-Water, 2013 Four circular structures (25kW) are rotated to track the sun.

20 Design Samples in Korea 48kWp Floating Solar Power System on Gasa Island, Jeonnam Korea s first energy-independent island s micro grid model Supplies power to islands

21 World s 4th largest floating solar system Floating Solar Power System on Sang Ju, Kyoung Buk LG CNS, 2015 The First Project-Financing Model.

22 THANK YOU Veyis Neo Toprak Smart Energy Biz Division General Manager