Korean Rail Operators Expand Deployment of Maxwell Technologies Ultracapacitors for High-Efficiency Braking Energy Recuperation

       Korean Rail Operators Expand Deployment of Maxwell Technologies
   Ultracapacitors for High-Efficiency Braking Energy Recuperation Systems

Benefits Include Reduced Energy Consumption and Network Voltage Stabilization

PR Newswire

SEOUL, Korea, Feb. 25, 2014

SEOUL, Korea, Feb. 25, 2014 /PRNewswire/ -- Woojin Industrial Systems, a
leading manufacturer of electric rail vehicles and rail system equipment, has
completed installation of its energy storage system (ESS) ultracapacitor-based
braking energy recuperation systems in seven Metro stations in Seoul, Daejon,
Incheon and the Korea Train eXpress (KTX) high-speed rail depot in Seoul.

Enabling Energy's Future

Beginning with installation of demonstration systems in 2009 under a contract
with the Korean federal government's Korean Railroad Research Institute
(KRRI), Woojin and rail system operators have achieved grid power consumption
savings of more than 20 percent and realized additional benefits in the form
of system voltage stabilization that reduces power infrastructure requirements
and helps to ensure uninterrupted operation. The recuperation systems, ranging
from 750 to 1,500 volts, employ Maxwell ultracapacitors to absorb energy
during rail vehicle braking and deliver the stored energy to the vehicles'
electric motors for propulsion and to stabilize voltage throughout the system.

Each installation employs up to 200 of Maxwell's 48-volt multi-cell
ultracapacitor modules. Based on their positive experience to date, Woojin and
rail system operators are planning several additional installations in 2014
and 2015.

"Ultracapacitors' rapid charge and discharge capabilities make them the most
efficient option for energy storage and power delivery in braking energy
recuperation systems," said Dr. Eun K. Lee, vice president, Woojin Industrial
Systems. "In addition to being highly efficient in recycling energy that
otherwise would be wasted, Maxwell's ultracapacitors operate reliably in low
and high temperature environments and have met our expectations for long
operational lifetime."

"Transportation requirements to capture and deliver power and energy are
shifting to more and more high-duty cycle applications, demanding incredibly
fast energy capture and power delivery solutions and creating long-term growth
opportunities for Maxwell and our leading ultracapacitor technologies," said
John Warwick, Maxwell's interim president and CEO. "Maxwell provides a variety
of power storage solutions, enabling rail transportation networks to operate
more efficiently while reducing emissions,including regenerative braking,
signaling systems and diesel locomotive starting."

Unlike batteries, which produce and store energy by means of a chemical
reaction, ultracapacitors store energy in an electric field. This
electrostatic energy storage mechanism enables ultracapacitors to charge and
discharge in as little as fractions of a second, perform normally over a broad
temperature range (-40 to +65 degrees Celsius), operate reliably through 1
million or more charge/discharge cycles and resist shock and vibration.
Maxwell offers ultracapacitor cells ranging in capacitance from one to 3,000
farads and multi-cell modules ranging from 16 to 125 volts. For more
information on Maxwell's ultracapacitor products, please visit Maxwell.com.

About Maxwell Technologies: Maxwell Technologies (Nasdaq:MXWL) is a global
leader in the development and manufacture of innovative, cost-effective energy
storage and power delivery solutions. Our ultracapacitor products provide safe
and reliable power solutions for applications in consumer and industrial
electronics, transportation and telecommunications. Our high-voltage grading
and coupling capacitors help to ensure the safety and reliability of electric
utility infrastructure and other applications involving transport,
distribution and measurement of high-voltage electrical energy. Our
radiation-mitigated microelectronic products include power modules, memory
modules and single board computers that incorporate powerful commercial
silicon for superior performance and high reliability in aerospace
applications. For more information, visit www.maxwell.com.

About Woojin Industrial Systems: Woojin Industrial Systems leads the rail car
components industry in Korea. Since its inception in 1974, Woojin has focused
on manufacturing rolling stock equipment through continuous research and
development and quality improvements. Successful development of core equipment
for electric multiple units and electric locomotives in Korea provided Korean
rail operators with local sources of equipment that were previously only
available from foreign sources. Woojin now boasts a complete line-up of light
rail vehicles, electric multiple units, high-speed rail components, electric
locomotive equipment and electric rail test & maintenance equipment. Recently,
Woojin expanded its business scope to include development of future energy
sources. In addition to the ESS for electric rail, Woojin has developed and
implemented systems such as stand-alone Hybrid Power Systems and Peak Electric
Power Shaving Systems. All of these systems are also exported from Korea to
various customers around the world. Woojin proudly presents high quality
railway vehicle equipment to ensure more safe and comfortable public
transportation.

Maxwell Technologies contacts:

Media: Rachel Sullivan, Metis Communications: +1 (617) 236-0500;
maxwell@metiscomm.com
Investor: Michael Sund: +1 (858) 503-3233; msund@maxwell.com
Sales and technical: Brian Eichler: +1 (858) 503-3326; beichler@maxwell.com 

Woojin Industrial Systems contact:
Sales and technical: Dr. Eun K. Lee, vice president: +82 43 820 4258:
eklee@wjis.co.kr

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SOURCE Maxwell Technologies
 
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