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Pu Neng
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Developer of large-capacity flow batteries based on vanadium-redox technology

Founded in 2007
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Company type Private Public ()
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Industry Group energy & power

Sector energy storage

TRL Range 9
TRL 1 Basic research
TRL 2 Technology formulation
TRL 3 Applied research
TRL 4 Small scale prototype
TRL 5 Large scale prototype
TRL 6 Prototype system
TRL 7 Demonstration system
TRL 8 First of a kind commercial system
TRL 9 Full commercial application
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Headquarters China Beijing, China
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Updated by Matthew Doe at on 08/19/2013

Edited by Cleantech Group on 10/14/2020

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Date Company
03/02/2011

China Electric Power Research Institute (CEPRI) China Electric Power Research Institute (CEPRI)

Prudent Energy announced today it has finalized the installation of a 1MWh Vanadium Redox Battery (VRB®) energy storage system, sized at a rated power 500kW and a peak power of 750kW pulse capability for the China Electric Power Research Institute (CEPRI) in Zhangbei, Hebei province in northern China.

Confirmed by China Electric Power Research Institute (CEPRI)
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Date Partner Type
03/09/2011
Pacific Gas & Electric (PG&E) Pacific Gas & Electric (PG&E)
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Confirmed by Pacific Gas & Electric (PG&E)
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Date Investors Type Amount
05/29/2017 High Power Exploration High Power Exploration (1)
Post-money valuation of
HPX’s investment in Pu Neng (fka Prudent Energy) underscores growing interest in vanadium redox battery deployment in Asia.
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VRB® Energy Storage System

Unlimited cycles (20+ years); Can produce over 10,000 full-depth charge/discharge cycles with no negative effect on performance; Low self-discharge; 6-8 hours storage duration

 Wide Commercial Availability
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