Magenta Goes Green: T-Mobile Commits to 100% Renewable Energy

The Un-carrier commits to 100% renewable energy use by 2021, unveils 2nd
wind farm project and joins RE100

BELLEVUE, Wash.–(BUSINESS WIRE)–Today, T-Mobile (NASDAQ: TMUS) announced it will move to 100% renewable
electricity by 2021, and the Un-carrier has joined RE100,
a collaborative, global initiative uniting more than 100 influential
businesses committed to 100% renewable electricity. T-Mobile also
took a big step toward their clean energy commitment, unveiling a 2nd
wind farm project backed by the Un-carrier.

“It’s the Un-carrier way to do the right thing by our customers, and
moving to renewable energy is just a natural part of that,” said John
Legere, president and CEO at T-Mobile. “And it’s not just the right
thing to do – it’s smart business! We expect to cut T-Mobile’s energy
costs by around $100 million in the next 15 years thanks to this move.
Imagine the awesome things we can do for our customers with that!”

Path to 100% Renewable Energy

T-Mobile unveiled, for the first time today, that the company has
finalized a contract for 160 MWs from Infinity Renewables’ Solomon Forks
Wind Project in Kansas, with power generation slated to begin in early
2019. The Solomon Forks project marks T-Mobile’s 2nd major
wind power project. The first, the Red
Forks Wind Power Project in Oklahoma, went online this past
December. Combined, the two will generate 320 MWs for T-Mobile, enough
to meet an estimated 60% of the Un-carrier’s total energy needs
nationwide.

To reach 100%, T-Mobile will buy enough wind power annually to account
for every unit of electricity the company consumes. And the Un-carrier
is focused on creating new energy from renewable sources, buying
only from projects that wouldn’t exist without T-Mobile’s involvement.

Formalizing its commitment to go 100% renewable, T-Mobile US also joined
Nike, Google, Microsoft and Facebook as part of RE100.
Started by The Climate Group, RE100 works with leading businesses around
the world to switch private sector electricity demand to renewables and
accelerate the transformation of the global energy market and the
transition to a low carbon economy. T-Mobile will report electricity
data annually to RE100, who will report on the Un-carrier’s progress.

Sam Kimmins, Head of RE100 at The Climate Group, said: “It’s great to
see T-Mobile US shifting to renewables for its power consumption. As a
large electricity consumer in the US, they can truly transform energy
systems by bringing significant renewable capacity online – all of that
while delivering real value to their customers. I congratulate them for
a great commitment.”

About T-Mobile US, Inc.

As America's Un-carrier, T-Mobile US, Inc. (NASDAQ: TMUS) is redefining
the way consumers and businesses buy wireless services through leading
product and service innovation. Our advanced nationwide 4G LTE network
delivers outstanding wireless experiences to 72.6 million customers who
are unwilling to compromise on quality and value. Based in Bellevue,
Washington, T-Mobile US provides services through its subsidiaries and
operates its flagship brands, T-Mobile and MetroPCS. For more
information, please visit http://www.t-mobile.com.

About RE100

Led by The Climate Group in partnership with CDP, and as part of the We
Mean Business Coalition, RE100 is a collaborative initiative bringing
together the world’s most influential businesses committed to 100%
renewable power. Renewables are a smart business decision, providing
greater control over energy costs and driving innovation, while helping
companies to deliver on emission reduction goals. RE100 members,
including Global Fortune 500 companies, have a total revenue of over
US$2.75 trillion and operate in a diverse range of sectors – from
Information Technology to automobile manufacturing. Together, they are
accelerating the transition to a zero emissions economy. Find out more
at RE100.org.

Contacts

Media Contacts
T-Mobile US Media Relations
MediaRelations@t-mobile.com
or
Investor
Relations
877-281-TMUS OR 212-358-3210
investor.relations@t-mobile.com