Digital Realty Trust Receives InfoWorld's Green 15 Award for Industry Leadership...

Digital Realty Trust Receives InfoWorld's Green 15 Award for Industry
Leadership in Green IT

SAN FRANCISCO, April 30 /PRNewswire-FirstCall/ -- Digital Realty Trust,
Inc. (NYSE: DLR), a leading owner and manager of corporate and Internet
gateway datacenters, announced today that IDG's InfoWorld, the leading
integrated media brand for IT Decision Makers, has selected the Company for
InfoWorld's 2008 Green 15 Awards.
The InfoWorld Green 15 Awards recognize the 15 most innovative IT
initiatives that use green technology and sustainable practices for IT
projects and products that boost energy efficiency, trim waste, and reduce or
eliminate the use or production of harmful substances. Digital Realty Trust
was recognized for its leadership in increasing datacenter energy efficiency
and for its completion of the industry's first LEED Gold certified datacenter.
Energy efficiency in datacenters is a critical issue in any discussion of
green IT because they are energy-intensive. In addition, both the number of
datacenters as well as their power usage is predicted to increase
significantly in the near future as corporations require more IT
infrastructure to support their business operations.
"Many organizations worldwide are struggling with high energy costs, as
well as limited space and power to meet their computing needs. At the same
time they are feeling pressure from investors, legislators, customers, and
from within their organizations to cut waste, reduce their carbon footprint,
and be better environmental stewards. The InfoWorld Green 15 winners clearly
demonstrate how sustainable technology initiatives can be complementary --
even instrumental -- in achieving corporate goals. Digital Realty Trust's LEED
Gold datacenter represents a milestone in the green datacenter movement and
offers a compelling model for increasing datacenter energy efficiency at a
time when datacenter energy consumption is accelerating," said Ted Samson,
Senior Analyst, InfoWorld.
Digital Realty Trust's LEED Gold certified datacenter, the first in the
industry, is located in its 350 East Cermak Road facility in Chicago -- a 1.1
million square foot historical landmark in downtown Chicago that now serves as
a state-of-the-art corporate and Internet gateway facility for the greater
Chicago region. The Leadership in Energy and Environmental Design (LEED) Green
Building Rating System(TM) is the nationally accepted benchmark for the
design, construction, and operation of high performance green buildings. LEED
gives building owners and operators the tools they need to have an immediate
and measurable impact on their buildings' performance. LEED promotes a whole-
building approach to sustainability by recognizing performance in five key
areas of human and environmental health: sustainable site development, water
savings, energy efficiency, materials selection, and indoor environmental
quality.
"This award is a tremendous honor and a fantastic validation of our
efforts to adopt best practices that increase datacenter energy efficiency and
share information publicly that supports industry-wide initiatives to make
datacenters greener," said Mike Foust, CEO of Digital Realty Trust. "As one of
the industry's largest owners of datacenter facilities, we are in a unique
position to implement a wide range of green initiatives and evaluate the
impact and cost-effectiveness of various technologies and processes. This LEED
Gold datacenter was a particularly important effort because it demonstrates
the value of LEED guidelines for datacenters -- providing a proven methodology
for green building design at a time when clear standards for green datacenters
have not yet been established in our industry."
Another important green initiative that Digital Realty Trust is pioneering
is a large-scale program to optimize the energy efficiency throughout the
datacenters the Company owns and operates around the world, leveraging the
engineering and operations teams' expertise in datacenter power utilization
and experience implementing best practices for increasing energy efficiency.
As part of this program, Digital Realty Trust will be the first company in the
datacenter industry to publish data about the energy efficiency of its
datacenter facilities, using the Power Usage Effectiveness (PUE) metric, an
emerging industry standard, as the methodology for measuring and reporting
energy efficiency. Digital Realty Trust will provide customers with data that
will allow them to compare the energy efficiency of different datacenter
facilities as well as actionable information about how their datacenter
operations are meeting their own green IT objectives. By publishing this data,
Digital Realty Trust will also provide the datacenter industry with valuable
benchmarks for industry-wide efforts to increase datacenter energy efficiency,
enabling other companies to leverage this information to drive green
initiatives in their own facilities.
About InfoWorld Media Group
InfoWorld Media Group helps IT Decision Makers choose the right
technology, within the context of a cohesive strategy for business impact at
their organizations. InfoWorld identifies and promotes emerging technology
segments that add unique value for the organizations that implement them, as
well as the vendors that provide those solutions. Using an integrated
communications approach including online, events, research, and a continued
investment in an independent Test Center, InfoWorld analysts and editors
provide hands-on analysis and evaluation, as well as expert commentary on
issues surrounding emerging technologies and products. Visit InfoWorld at
http://www.infoworld.com.
About International Data Group
International Data Group (IDG) is the world's leading technology media,
events, and research company. IDG's online network includes more than 450
websites spanning business technology, consumer technology, digital
entertainment and video games worldwide. IDG also publishes more than 300
magazines and newspapers in 85 countries. IDG's media brands include CIO,
CSO, Computerworld, GamePro, InfoWorld, Macworld, Network World, and PC World.
IDG's lead-generation service, IDG Connect, matches technology companies with
an audience of engaged, high-quality IT professionals, influencers, and
decision makers. IDG is a leading producer of more than 750 technology-related
events including Macworld Conference & Expo, LinuxWorld Conference & Expo,
Entertainment for All Expo (E for All), DEMO, Storage Networking World, and
IDC Directions. IDC, a subsidiary of IDG, is the premier global provider of
market intelligence, advisory services, and events. Over 900 IDC analysts in
more than 90 countries provide global, regional, and local expertise on
technology and industry opportunities and trends. Additional information about
IDG, a privately held company, is available at http://www.idg.com.
About Digital Realty Trust, Inc.
Digital Realty Trust, Inc. owns, acquires, redevelops, develops and
manages technology-related real estate. The Company is focused on providing
Turn-Key Datacenter(TM) and Powered Base Building(TM) datacenter solutions for
domestic and international tenants across a variety of industry verticals
ranging from information technology and Internet enterprises, to manufacturing
and financial services. Digital Realty Trust's 71 properties, excluding one
property held as an investment in an unconsolidated joint venture, contain
applications and operations critical to the day-to-day operations of
technology industry tenants and corporate enterprise datacenter tenants.
Comprising approximately 12.6 million square feet as of April 1, 2008,
including 2.0 million square feet of space held for redevelopment, Digital
Realty Trust's portfolio is located in 26 markets throughout Europe and North
America. For additional information, please visit Digital Realty Trust's
website at http://www.digitalrealtytrust.com.
Safe Harbor Statement
This press release contains forward-looking statements which are based on
current expectations, forecasts and assumptions that involve risks and
uncertainties that could cause actual outcomes and results to differ
materially, including statements related to the implementation of a program to
optimize the energy efficiency throughout the datacenters the Company owns and
operates around the world. These risks and uncertainties include operational
challenges in implementing the optimization program; adverse economic or real
estate developments in our markets or the technology industry; our failure to
obtain necessary outside debt or equity financing; our dependence upon
significant tenants; bankruptcy or insolvency of a major tenant; downturn of
local, national or global economic conditions in our geographic markets; our
inability to comply with the rules and regulations applicable to public
companies or to manage our growth effectively; difficulty acquiring or
operating properties in foreign jurisdictions; defaults on or non-renewal of
leases by tenants; increased interest rates and operating costs; restrictions
on our ability to engage in certain business activities; risks related to
joint venture investments; decreased rental rates or increased vacancy rates;
inability to successfully develop and lease new properties and space held for
redevelopment; difficulties in identifying properties to acquire and
completing acquisitions; increased competition or available supply of data
center space; our failure to successfully operate acquired properties; our
inability to acquire off-market property; delays or unexpected costs in
development or redevelopment of properties; our failure to maintain our status
as a REIT; possible adverse changes to tax laws; environmental uncertainties
and risks related to natural disasters; financial market fluctuations; changes
in foreign currency exchange rates; changes in foreign laws and regulations,
including those related to taxation and real estate ownership and operation;
and changes in real estate and zoning laws and increases in real property tax
rates. For a further list and description of such risks and uncertainties,
see the reports and other filings by the Company with the United States
Securities and Exchange Commission, or SEC, including the Company's annual
report on Form 10-K for the year ended December 31, 2007, and subsequent
reports on Form 8-K filed with the SEC. The Company disclaims any intention
or obligation to update or revise any forward-looking statements, whether as a
result of new information, future events or otherwise.
For Additional Information:

A. William Stein
Chief Financial Officer and
Chief Investment Officer
Digital Realty Trust, Inc.
+1 415-738-6500

Pamela A. Matthews
Investor/Analyst Information
Digital Realty Trust, Inc.
+1 415-738-6500

Chris Crosby
Sales & Technical Services
Digital Realty Trust, Inc.
+1 214-231-1350

SOURCE Digital Realty Trust, Inc.

A. William Stein, Chief Financial Officer and Chief Investment Officer, or
Pamela A. Matthews, Investor-Analyst Information, both of Digital Realty
Trust, Inc., +1-415-738-6500, or Chris Crosby, Sales & Technical Services of
Digital Realty Trust, Inc., +1-214-231-1350