POWER July 2014 - 1

Established 1882 * Vol. 158 * No. 7
July 2014
ON THE COVER
The variety, number, and strength of environmental regulations facing the power industry
are all quickly building to create what, for some plants, may be a perfect storm. Photo:
POWER/Gail Reitenbach; type: Michele White
COVER STORY: ENVIRONMENTAL CONCERNS
22 Combined Mercury and SO3 Removal Using SBS Injection
Using a sorbent that removes SO3 before the air preheater, plants can remove higher
levels of mercury than is otherwise typical. They also enjoy co-benefit capture of two
other elements that could position a plant for compliance with proposed effluent
limit guidelines without adding new equipment.
28 Biomass Exemption Sails into the Sunset
How small is small? The definition matters enormously to U.S. biomass plants that
may soon find themselves falling into a different category, where they would be
subject to new permitting and equipment hurdles.
32 The Water-Energy Nexus Takes Center Stage
As droughts and growing demand strain water resources worldwide, the power sector
is being called upon to make water efficiency a top priority. Here's what plant
operators will be facing in the future.
36 Shifting Sands: The Middle East's Thrust for Sustainability
With its reputation for fossil fuel wealth, the Middle East may seem an unlikely place
to encounter low-carbon and energy-efficiency efforts, but population and economic
growth coupled with scarce water are behind the shift.
40 Geoengineering: A Practical Climate Work-Around or Just Plain Crazy?
Global political and economic approaches to reducing atmospheric greenhouse
gases are going nowhere, so some say it's time to take various geoengineering
approaches seriously.
SPECIAL REPORTS
DISTRIBUTED GENERATION
44 Blurring the Line Between Temporary and Permanent Power
Although temporary power is familiar to many readers from major construction projects
or off-grid mining operations, fewer may realize that the project characteristics
for the business are quickly approaching those for " permanent " power stations.
22
Web Exclusives
You'll find more online at powermag.com every month, from news stories as they're
posted, to blog posts, to feature stories. Look for these exclusive stories associated with
the July issue features in the Archives:
Evolved Strategy Accelerates Zion Nuclear Plant Decommissioning
The EEI's Campaign for Electric Utility Industry Supremacy
RWE's Thomas Birr on Corporate Strategy in a Changing German Electricity Ecosystem
The EPA's Clean Power Rule in Three Infographics
July 2014 | POWER
www.powermag.com
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POWER July 2014

Table of Contents for the Digital Edition of POWER July 2014

Contents
POWER July 2014 - Cover1
POWER July 2014 - Cover2
POWER July 2014 - Contents
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