International Competition on Second Life for Retired Batteries from Electic Vehicles

Championship in Hong Kong : 25 June 2017

Award : Medals, Certificates and Designated Visit to Green Facilities in Germany

Competition Groups: Open Group and Student Group




Unlimited Power of EV Battery

Electric vehicles (EV) have gained popularity worldwide in recent years. In Hong Kong, the Government’s promotion of EV has led to an almost 60-fold increase in the EV population in less than six years (from less than 100 at the end of 2010 to over 5,800 at the end of July 2016). Since retired EV batteries still have 70% to 80% of electricity storage capacity, their potential for second-life applications is immense. The Competition will help find innovative and practical ideas for re-using retired EV batteries, whose numbers are expected to increase with the increased popularity of EV.

Let's brainstorm a useful second life for EV Batteries!


EV have no tailpipe emissions. Replacing conventional vehicles with EV can help improve roadside air quality and reduce greenhouse gas emissions. A wider use of EV also contributes to the development of green industries.

The Financial Secretary of the Hong Kong Special Administrative Region (HKSAR) Government chairs a Steering Committee on the Promotion of Electric Vehicles with members from the relevant sectors to recommend a strategy complementary with specific measures to promote the use of electric vehicles in Hong Kong, having regard to the resulting energy efficiency, environmental benefits and the creation of business opportunities.

Tell Me More


15 May 2017
Thanks for all the great submissions. Top 5 finalists for both Open and Student Groups are selected! Congratulations to the finalists! You will receive a notification email and we will contact you for the arrangement on championship to be held in Hong Kong on 25 June 2017.
International Competition on Second Life for Retired Batteries from Electric Vehicles

Key milestones



Environment Bureau




Cathay Pacific
Sino Group