Vina R&D

Regenerated Energy

VINATech keeps developing a energy storage system to store the regenerated energy devices.

Project overview

Project background and objectives

  • More than 500 elevators for facilities higher than 30 floors have been installed every year since 1996. Over 700 elevators were installed in 2014, and over 2,000 elevators were installed in the same year, if the elevators for facilities higher than 25 floors are included. As the number of high-rise elevators increase, increasing the capacity of super capacitors is required (At least in the case of Korea.).
  • The space of the elevator machine room becomes smaller to reduce construction costs, which also requires the ESS (Energy Storage System) and the reduction of the DC-DC converter size, and increases demand on high-capacity super capacitors.
  • The development goals of this project are to develop the world’s best energy saving ESS and enter new markets, based on “improved materials”, “cell, module and CMS”, “DC-DC converter” and “cooling system” technology.

Implementation organizations

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Organization Role Website

-Developing cells and modules

-Developing CMS

-Developing simulators

-Field testing of the elevator tower

Korea Institute of Carbon Convergence Technology Developing activated carbon http://www.kctech.re.kr  
Kunsan National University Developing electrolytes http://www.kunsan.ac.kr  
Chonbuk National University Developing conductors http://www.chonbuk.ac.kr  
Leekun Industrial Systems Developing DC-DC converters http://www.leekunisc.co.kr  
Sangoh Precision

-Developing cooling systems

-Developing ESS housing

Korea Electronics Technology Institute Legislation, marketing and advertising http://www.keti.re.kr  

Implementation schedule

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Year Phase Implementation aspect
Y1(May. 2015 ~ APR. 2016) Design

-Designing the ESS for elevators

-Analyzing the regeneration system

Y2(May. 2016 ~ APR. 2017) Production

-Developing and testing the ESS

-Supplementary design

Y3(May. 2017 ~ APR. 2018) Verification and legislation

-Application to elevators and testing

-Proposing laws/policies at home and abroad

Expected effects

  • The effects of power consumption reduction are expected to be 2,565GWh every year, by saving regenerated energy that is generated when the elevator goes down. In addition, it is expected to take about 4 years to recoup the investment.
  • Basis of estimation

    -Number of elevators in facilities higher than 25 floors: 500,000 car/country

    -Annual power saving per elevator: 5,130kWh/year·car (assuming 14 hours of daily operation)

    -Electric power efficiency: 121 KRW/kWh

    -Power consumption reduction = 500,000 car/country * 5,130kWh/year·car = 2,565GWh

    -Reduced electrical bills = 2,565GWh * 121 KRW/kWh = 310 billion KRW

    (Estimation applied to Korea only.)