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Best Quality and Advanced Technology for our Customers

Techwin Photovoltaic Power Generation EPC

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  • Commencing from land photovoltaic EPC experience, we are a total engineering company performing an entire project comprised of design, license and permits, construction, follow-up management related to photovoltaic power since 2007.
  • Especially commencing from the research and development in floating photovoltaic system in 2011, we have accumulated specialized know-how and experiences in the area of floating photovoltaic system through a technical alliance with Ciel et Terre of France in 2014, and completion of 10 sites (about 13MWp) of floating photovoltaic system power plant as of 2019. Based on these capacities, we are providing a total solution on floating photovoltaic system EPC.
  • We have been performing successful projects, with our specialists satisfying customers’ needs on the entire project such as discussion with and obtaining license and permits from the government, resolution of civil complaints, financial advisory, and follow-up management rather than being limited to simple photovoltaic construction.

Features and advantages

  • 1. Experience in business development

    • Experience and know-hows in development and success have been accumulated through various cases of projects
    • Construction complying to technical specification and quality management standards of Korea Rural Community Corporation, municipalities, K-Water, power plants, etc.
  • 2. Direct construction and construction technologies owned

    • Related licenses such as renewable energy specializing enterprise, electric construction business, civil engineering business, industrial environment facilities construction business held and quality guaranteed by direct construction
  • 3. EPC cost competitiveness through direct production of buoyancy structure

    • We directly produce floating photovoltaic system buoyancy structure and supply at a low price to reduce EPC price
  • 4. License, permits and resolution of civil complaints

    • Our specialists are engaged directly at site for license, permits and resolution of civil complaints to ensure smooth progress of a project
  • 5. Systemic follow-up management, monitoring service provided

    • Regular follow-up management implemented and patrol surveillance conducted in case of events such as typhoon, flood, freezing, etc.

Business area, business development

  • description

    Feasibility review

    • Business location development
    • feasibility (economic feasibility) review
    • determination of suitability of location
    • discussion with related institutions
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    Discussion on license, permits, civil complaints

    • All license and permit issues from approval of power generation business to REC certification
    • discussion with neighboring villages on civil complaints
  • print

    REC long term contract PF discussion

    • Acting as agency and arrangement of REC long term contract
    • discussion on PF (financing) and selection of financial institution
  • build

    Materials procurement and construction

    • Procurement of major materials such as module, inverter, electric & civil engineering & structure work, etc.
  • find_in_page

    Follow-up management O&M

    • Power generation amount guarantee after completion, water surface structure and mooring device O&M

Project procedure

  • 사업절차

    1. project location development

  • 사업절차

    2. approval on use of land & water surface

  • 사업절차

    3. licensed and permitted

  • 사업절차

    4. discussion on civil complaints

  • 사업절차

    5. structure construction

  • 사업절차

    6. civil engineering electric work

  • 사업절차

    7. diagnosis and inspection before use

  • 사업절차

    8. license and permit upon completion

  • 사업절차

    9. follow-up management (O&M)


Technology development chronology

Chronology of integral type floating photovoltaic system buoyancy structure

  • Overseas
  • Domestic
  • 19'
    • New product production and delivery commenced.
  • 18'
    • New product development commenced. Currently,
      100MW completed over 95 sites and 200MW in progress at over 50 sites.
    • New product development commenced,
      and factory expanded. 18MW buoyancy structure delivered.
  • 17'
    • Buoyancy structure production factory relocated by expansion,
      10MW buoyancy structures delivered.
  • 16'
    • Domestic floating photovoltaic system buoyancy structure production factory completed and production
    • Queen Elizabeth Ⅱ (drinking water storage reservoir) 6.4MW commercial operation commenced in the U.K.
  • 15'
    • Cheongju Ochang water surface 1st photovoltaic power plant completed.
    • Around 30MW supplied in cumulative total to Japan, U.K., etc.
  • 14'
    • Techwin entered into partnership contract with CILE ET TERRE
  • 13'
    • Japanese Okegawa reservoir 1.2MW commercial power generation commenced
  • 11'
    • France CIEL ET TERRE’s integral type buoyancy structure development and installation

EPC business performance

Completed project

회사 개요
Name of power plant Tilt angle Generation capacity Date of completion Location Image
Ochang reservoir water surface #1 photovoltaic power plant 12 494.50 kWp 2015. 02 Chungbuk Cheongju 설비
Ochang reservoir water surface #2 photovoltaic power plant 15 2,506.48 kWp 2018. 01 Chungbuk Cheongju 설비
Myeonggwan reservoir floating photovoltaic power plant 22 1,211.76 kWp 2018. 01 Gyeongnam Haman 설비
Manwun reservoir floating photovoltaic power plant 22 2,007.36 kWp 2018. 05 Gyeongbuk Andong 설비
Gasan reservoir floating photovoltaic power plant 22 2,007.36 kWp 2018. 07 Gyeongnam Milyang
Baekhyeon reservoir floating photovoltaic power plant 22 954.72 kWp 2018. 11 Gyeongbuk Gumi
Total 9,182.18 kWp

Project in progress

진행사업
Name of power plant Tilt angle Generation capacity Date of completion Location Image
Seonghyeon reservoir floating photovoltaic power plant 22 954.72 kWp 2019. 05 Chungbuk Cheongju
Dowon reservoir floating photovoltaic power plant 22 2,007.36 kWp 2019. 07 Gangwon Gosung
Yonggye reservoir floating photovoltaic power plant 22 2,007.36 kWp 2019. 07 Chungbuk Eumseong
Imgo reservoir floating photovoltaic power plant 22 2,008.80 kWp 2019. 07 Gyeongbuk Yeongcheon
Hwasan reservoir floating photovoltaic power plant 22 2,540.16 kWp 2019. 07 Chungbuk Jincheon
22 9,518.40 kWp

Buoyancy structure delivery, anchor construction and export performance

Domestic performance

국내 실적
Name of power plant Tilt angle Generation capacity Date of completion Location Image
Pyeongji reservoir floating photovoltaic power plant 15 706.23 kWp 2016. 12 Gyeongbuk Mungyeong 설비
Goyeon reservoir floating photovoltaic power plant 15 933.66 kWp 2017. 08 Ulsan Ulju
Cheokdong reservoir floating photovoltaic power plant 15 99.00 kWp 2017. 05 Jeonbuk Gunsan 설비
Gongam reservoir floating photovoltaic power plant 15 994.84 kWp 2018. 05 Ulsan Ulju 설비
Total 2,733.73 kWp

Overseas performance (buoyancy structure export)

해외 실적(부력체 수출)
Name of power plant Tilt angle Generation capacity Date of completion Location Image
Japan, Singapore, Malaysia, Hong Kong in 2016 12 1,706 kWp 2016 buoyancy structure export
Belgium, Japan, Australia in 2017 12 2,350 kWp 2017 buoyancy structure export
Total 12 4,056 kWp

Overseas project

Overseas project
Overseas partner (Ciel et Terre International) 100MW completion performance at 95 sites Overseas partner (Ciel et Terre International) 200MW performance in progress at 50 sites
설비 설비
해외사업
1) Japan: Japanese/Yamakura dam floating photovoltaic power plant 13.7MW 2) U.K. drinking water source : U.K./Queen Elizabeth 2 reservoir (drinking water source) floating photovoltaic power plant 6.3MW 3) China : China/Anhui floating photovoltaic power plant 70MW (Dec. 2018 completion scheduled)
설비 설비 설비