POWER August 2014 - 1

Established 1882 * Vol. 158 * No. 8
August 2014
ON THE COVER
This access road on the Ivanpah Solar Electric Generating System site runs straight to
one of three concentrating solar power towers. The much longer road to developing this
landmark plant was anything but straight. Courtesy: NRG Energy
COVER STORY: PLANT OF THE YEAR
26 Ivanpah Solar Electric Generating System Earns POWER 's Highest Honor
Meeting 33% of California's massive electricity demand with renewable generation
requires some equally massive plants, and the biggest yet came online this year in
the Mojave Desert. Getting the world's largest solar thermal plant funded and built
required creative solutions and unusual partnerships to overcome an array of environmental,
regulatory, and construction challenges.
SPECIAL REPORTS
MARMADUKE AWARD
36 KOMIPO Relocates an Entire Combined Cycle Power Plant
It's not the first time a power plant has been moved, but this South Korean unit is
one of the largest to be relocated. And, because both the original and new sites
were currently operating plants, logistics and timing were of much higher importance
than when moving a decommissioned unit.
WATER AWARD
40 Jeffrey Energy Center's Constructed Wetland Treatment System
Our inaugural Water Award goes to a coal-fired power plant that shows how unconventional
solutions can come from conventional fossil plants. By mimicking
natural processes, this large Midwestern coal-fired plant is able to effectively treat
flue gas desulfurization wastewater while protecting the environment and minimizing
costs.
FEATURES
HEAT-RECOVERY STEAM GENERATORS
46 Strategies for Inspecting HRSGs in Two-Shift and Low-Load Service
Frequent operation of heat-recovery steam generators (HRSGs) in beyond-design
conditions often leads to more-frequent equipment degradation and failure. Here's
a detailed look at common unit failure mechanisms and HRSG inspection strategy
considerations for low-load operations and two-shift cycling. (See the web supplement
for additional examples and photos.)
NUCLEAR
50 Welding and Fabrication Innovations Mitigate Reactor Pressure Vessel Embrittlement
in Nuclear Plant Construction
Radiation-induced embrittlement of low-alloy weld filler metals has been a longtime
concern at nuclear power plants, but the latest manufacturing techniques and advanced
welding technologies could be game-changers for the industry.
COAL COMBUSTION RESIDUALS
54 Solid Coal Ash-Handling System Avoids Problems Associated with Wet and
Dry Systems
A system first used in Europe is being adopted on other continents for its ability to
handle disposal of a range of coal combustion residuals efficiently, with minimal
water, and with a small environmental footprint.
August 2014 | POWER
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POWER August 2014

Table of Contents for the Digital Edition of POWER August 2014

Contents
POWER August 2014 - Cover1
POWER August 2014 - Cover2
POWER August 2014 - Contents
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POWER August 2014 - Cover3
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