NOKIA SIEMENS DEVELOPS NETWORKS THAT WORK DURING BLACKOUTS

     (The following press release from Nokia Siemens Networks was received by 
e-mail. It was not confirmed by the sender.) 
Press Release
Tokyo, Japan – November 19, 2012 
Nokia Siemens Networks, Ballard Power Systems develop fuel cell backup power 
for mobile networks
•    Designed to support mobile networks during commercial grid outages 
•    Passed NTT DOCOMO evaluation tests and Japan statutory approval for power 
supply  
Nokia Siemens Networks is working with Ballard Power Systems, Inc. to develop 
mobile networks that can continue to operate during power blackouts. Japanese 
operator NTT DOCOMO has evaluated the Nokia Siemens Networks Flexi Multiradio 
base station site offering with integrated fuel cell* backup for potential 
commercial deployment. The solution has been installed at a DOCOMO R&D Center 
test site in Japan’s Yokosuka Research Park (YRP). 
“Mobile networks can be vital when a natural disaster strikes, and power 
outages make other forms of communication difficult,” said Mark Donaldson, head 
of energy solutions for mobile broadband networks  at Nokia Siemens Networks. 
“Integrating fuel cells with our base stations can significantly increase the 
resilience of the mobile networks we provide.”  
“Our fuel cell systems provide power for extended periods during outages caused 
by natural calamities and commercial grid failures,” said Larry Stapleton, vice 
president of sales, Ballard. “The collaboration with Nokia Siemens Networks has 
helped us leverage our service and integration expertise in order to deliver an 
emergency-ready alternative power solution for mobile networks.” 
Backup power solutions based on fuel cell technology deliver a number of 
advantages over conventional batteries and diesel generators. These include 
higher reliability across a wide range of operating conditions, lower 
maintenance costs, longer operating life as well as reduced size, weight, 
installation footprint, noise signature and environmental impact. 
The fuel cell weight and size are significantly less in comparison to existing 
lead acid batteries that are typically used in many base stations to provide 
backup power for extended outages. The base station and fuel cell combination 
developed by Nokia Siemens Networks with Ballard can provide 4.5 kW of power 
for approximately 40 hours on a single tank of fuel.  
The solution from Nokia Siemens Networks and Ballard Power Systems has already 
received the Ministry of Economy, Trade and Industry (METI) statutory approval 
in Japan. After delivering and setting up the fuel cell at a test site in YRP, 
Nokia Siemens Networks participated in and cleared DOCOMO’s evaluation tests. 
Please click here to download a photo 
(http://eu.vocuspr.com/ViewAttachment.aspx?EID=w8RVFG8eDm%2bp5uMvD9746gzRH2uAJzW
SrOraxdkLr%2fU%3d) of the fuel cell unit, shown here installed at Nokia Siemens 
Networks’ green energy test site in Japan. 
About Nokia Siemens Networks
Nokia Siemens Networks is the world’s specialist in mobile broadband. From the 
first ever call on GSM, to the first call on LTE, we operate at the forefront 
of each generation of mobile technology. Our global experts invent the new 
capabilities our customers need in their networks. We provide the world’s most 
efficient mobile networks, the intelligence to maximize the value of those 
networks, and the services to make it all work seamlessly.  
With headquarters in Espoo, Finland, we operate in over 150 countries and had 
net sales of over 14 billion euros in 2011. http://www.nokiasiemensnetworks.com  
About Ballard Power Systems, Inc.
Ballard Power Systems (TSX: BLD) (NASDAQ: BLDP) provides clean energy fuel cell 
products enabling optimized power systems for a range of applications. Products 
deliver incomparable performance, durability and versatility. To learn more 
about Ballard, please visit www.ballard.com.** 
Media Enquiries 
Nokia Siemens Networks
Shinji Kimura
Marketing and Corporate Affairs, Japan
Phone: +81 3 5474 6647
E-mail: shinji.2.kimura@nsn.com 
Media Relations
Phone: +358 7140 02869
E-mail: mediarelations@nsn.com  
Ballard
Guy McAree
Phone: +1 604 412 7919
Email: investors@ballard.com or media@ballard.com 
Notes: 
*A fuel cell is a device that converts the chemical energy from a fuel into 
electricity through a chemical reaction with oxygen or another oxidizing agent. 
Hydrogen (http://en.wikipedia.org/wiki/Hydrogen) is the most common fuel, but 
hydrocarbons such as natural gas and alcohols such as methanol 
(http://en.wikipedia.org/wiki/Methanol) are sometimes used. Fuel cells are 
different from batteries (http://en.wikipedia.org/wiki/Battery_(electricity)) 
in that they require a constant source of fuel and oxygen to run, but they can 
produce electricity continually for as long as these inputs are supplied. 
** This release contains forward-looking statements concerning the benefits of 
our products to customers. These forward-looking statements reflect Ballard’s 
current expectations as contemplated under section 27A of the Securities Act of 
1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as 
amended. Any such forward-looking statements are based on Ballard’s assumptions 
relating to its financial forecasts and expectations regarding its product 
development efforts, manufacturing capacity, and market demand and include the 
Company’s expectations regarding the potential benefits of the proposed 
transaction and the timing and success of future product development efforts.  
These statements involve risks and uncertainties that may cause Ballard’s 
actual results to be materially different, including general economic and 
regulatory changes, detrimental reliance on third parties, successfully 
achieving our business plans and achieving and sustaining profitability. For a 
detailed discussion of these and other risk factors that could affect Ballard’s 
future performance, please refer to Ballard’s most recent Annual Information 
Form. Readers should not place undue reliance on Ballard’s forward-looking 
statements and Ballard assumes no obligation to update or release any revisions 
to these forward looking statements, other than as required under applicable 
legislation. 
Nokia Siemens Networks
Media Relations
PO Box 1
FI-02022 Nokia Siemens Networks