Cable&Wireless Worldwide and CURRENT Group Partner to Deliver Smart Metering and Smart Grid Solutions for the UK

LONDON and GERMANTOWN, Maryland, December 13, 2010 - Cable&Wireless Worldwide and CURRENT Group are partnering to
develop integrated smart grid and smart metering solutions to help utility
companies achieve the goals of the UK Government's Low Carbon Economy and
National Smart Metering programme.

C&W Worldwide's unique, secure next-generation network and
ability to address complex communications requirements will be combined with
CURRENT's industry leading smart grid sensors, smart meter data collectors
and analytic software. The result will be an end-to-end, standards-based,
interoperable smart grid solution that will improve the efficiency and
reliability of the UK electric grid while reducing the environmental impact
of electric usage.

The solution will take advantage of the open and interoperable
"PRIME" metering standard that uses existing electrical wires to communicate
with smart meters via power line carrier communication technology. PRIME,
which is being adopted by a number of European utilities, enables utility
companies to save on the cost of communicating to individual meters and
provides them with additional smart grid capabilities that are not available
with wireless meter technologies.

Amy Cooke, Strategic Business Development Director at C&W
Worldwide comments: "There will be many ways of connecting smart meters to
the grid - each with separate technology and cost profiles, suitable for
different population densities, and various geographies that will ultimately
enable better management and control over the UK's electricity. By working
with CURRENT we will be able to add power line carrier capability to our
solution, offering a robust answer for smart metering communications
particularly in high density urban environments where there is a
proliferation of flats or where smart meters are hard to reach with wireless
technologies."

Cooke continues, "The electricity infrastructure we use today
was not designed for the mixture of low-carbon solutions that are emerging
such as increased grid efficiency, the use of renewable energy sources,
electric heat and electric vehicles. In order to manage all these and operate
as a single integrated system, the smart grid will need secure two-way
communication and sensing solutions that facilitates real-time grid
information developed through collaborations like this."

CURRENT Group Chief Executive Officer Tom Casey comments: "A
smart grid provides one of the lowest cost and most effective solutions to
low carbon requirements available today. We have combined PRIME metering and
our grid sensing solution with secure communications from C&W Worldwide into
one low cost solution. This will allow the UK to leverage its metering
investment to build a smart grid and thus achieve its carbon goals faster and
at a lower cost. In addition, PRIME metering will provide a low cost metering
solution to households in the UK who may otherwise not get access to a smart
meter."

About CURRENT

CURRENT provides utilities intelligent sensors and analytic
software to improve the efficiency and reliability of the electrical grid.
CURRENT's Smart Grid solutions have been proven to reduce unplanned utility
outage by 90% and reduce overall load requirements by up to 7% thus reducing
cost and carbon emissions. CURRENT jointly developed the PRIME metering
standard along with a number of the largest European utilities and vendors.
CURRENT's technology is used in some of the highest profile U.S. and European
Smart Grid projects and has been selected by 4 of the world's 10 largest
utilities as ranked by Platts. CURRENT, a private company, has been
recognized by several awards including from the World Economic Forum, Dow
Jones and AlwaysOn among others.

CURRENT is headquartered outside of Washington, DC, with activities
throughout the United States, Continental Europe, the United Kingdom and
Australia. For more information, visit www.currentgroup.com. For more
information on the PRIME Metering Standard, visit
www.prime-alliance.org.

About Cable&Wireless Worldwide

Cable&Wireless Worldwide (LSE: CW.) is one of the world's
leading mission critical communications providers, delivering a range of
high-quality managed voice, data and IP-based services and applications to
large multinational companies, governments, carrier customers and resellers
across the UK, Asia Pacific, India, Middle East & Africa, Continental Europe
and North America.

Reaching 20,500km in length, Cable&Wireless Worldwide owns the
UK's largest fibre network dedicated to business users of telecoms, and
provides ubiquitous nationwide access through a combination of fibre,
digital, microwave, radio and leased circuits. The network has presence in
over 400 towns and cities in the UK, with 802 unbundled exchanges covering
55% of the population.

Internationally, Cable&Wireless Worldwide's global
next-generation network (NGN) stretches to more than 500,000km, including
interests in 69 global cable systems, and provides connectivity to 153
countries. The Group's IP-based Multi-Service Platform, operates across the
NGN, offering a single environment on which voice and data applications can
be converged to drive business efficiencies. Cable&Wireless Worldwide's
network is uniquely designed with inbuilt resilience and the capability to
re-route traffic in the event of failure of one or more paths, particularly
at the international level.

With more than 6,200 colleagues globally, Cable&Wireless
Worldwide is committed to delivering exceptional customer service and
developing long term partnerships with its customers.

To find out more, please visit www.cw.com.

    Contacts:

    Hotwire
    Claire Lorimer / Rebecca Honeyman
    Claire.lorimer@hotwirepr.com
    +44(0)20-7608-4667

Contacts: Hotwire, Claire Lorimer / Rebecca Honeyman, Claire.lorimer at hotwirepr.com, +44(0)20-7608-4667