POWER

It’s easy to see why technologists fall in love with high-temperature gas-cooled reactors (HTGRs). These nuclear machines are remarkable inventions, at least on paper. But few have actually seen the real world for any length of time, and their real-world experience has been mixed.

An agreement signed by Turkish Prime Minister Recep Tayyip Erdogan and Japan’s Prime Minister Shinzo Abe this May could pave the way for the world’s first ATMEA 1 reactors to be built in Turkey in the 2020s.

Natural gas prices and low wholesale electricity prices are creating headwinds for large-scale renewable projects such as wind.

Despite technical and financial hurdles, annual global demand for grid-scale energy storage is expected to soar to 185.4 GWh by 2017, which means a possible 231% average year-on-year demand growth between 2012 and 2015, according to Lux Research.

Transformer fires are fearsome events, perhaps the most dangerous common threats to human life—both onsite and beyond the boundaries of a power plant—that can hit an electric utility.

German energy giant E.ON in late April narrowly averted idling its Irsching 4 and 5 units in Bavaria, Germany—its most technologically advanced gas-fired generating units that began operations just three years ago at a cost of €400 million.

As the book title Too Dumb to Meter: Follies, Fiascoes, Dead Ends, and Duds on the U.S. Road to Atomic Energy implies, nuclear power has traveled a rough road. For the conclusion of POWER’s exclusive serialization of the book, we offer the “Epilogue: Some Dumb Ideas Never Die.” The first 12 installments are available in the POWER online archives.

Saudi Arabia and Egypt Sign $1.6 Billion Agreement to Link Electricity Grids. Under an agreement signed on June 1, Saudi Arabia’s majority state-owned utility, Saudi Electricity Co., and Egypt’s state power company, Egyptian Electric Holding Co., will share the cost of building a 3,000-MW undersea transmission cable to link their electricity grids. The $1.6 billion […]

There are many reasons to anticipate that the use of wireless instrumentation in industrial settings will increase dramatically in the next few years.

Robotic Torches for Single Arc, Tandem Applications ESAB Welding & Cutting Products launched the new Aristo RT line of robotic torches, designed for single arc or tandem applications. The Aristo RT range of robotic torches work with three different product setups: Standard (external cable), Hollow Wrist Helix (rotation +/–220o), and Hollow Wrist Infiniturn (endless rotation). […]

The transformative increases in current and expected future domestic natural gas production have spawned yet another energy debate: Should the U.S. should export natural gas?

In communities all across North America, environmental justice (EJ), which calls for the fair treatment of all people, including those of color and the economically deprived, remains a serious concern.

Drought and competing uses for water continue to challenge power plant operators worldwide. In response, innovative approaches for reducing water use are being explored from South Africa to China.

Even though it enjoys sizeable coal and natural gas reserves, Indonesia struggles to provide electricity to its growing economy. Geography is its most obvious challenge. Others include evolving international markets and an energy sector that remains highly politicized.

Recent studies have shown that system oxidation-reduction potential (ORP) is not only an important factor for predicting wet flue gas desulfurization (WFGD) absorber chemistry but also may be a predictor of process equipment corrosion and wastewater treatment requirements.

What if you could send a control message between two points on the electricity grid—say between a control room operator and a turbine or between a system operator and a generating plant—and know that there’s no way that message can be intercepted, altered, or spoofed to effect malicious ends? That possibility may be only a couple of years away.

Investments into Australia’s power sector enable the industry to meet the collective goal of becoming a cleaner, greener nation. Download the report.

Ningde 1, the first of four Chinese-designed CPR-1000 pressurized water reactors being built at a site in Fujian Province, began commercial operation this April after a 58-month construction period.

HD Electric Co.’s new single-range TAG-200, multi-range TAG-200MR, and single-range TAG-330 are electronic voltage detectors designed for detecting distribution and transmission voltages. These direct contact type detectors emit both audible and visual indications when placed in contact with an energized conductor. TAGs are designed for overhead and underground applications with optional underground bushing probes. (HDElectricCompany.com)

NRC Poised to Rule on SCE Proposal to Restart San Onofre Unit 2. Southern California Edison (SCE) on April 5 submitted a voluntary request to the U.S. Nuclear Regulatory Commission (NRC) for a license amendment to support restart of Unit 2 of the San Onofre Nuclear Generating Station, and the NRC later said in a […]

Alliance Sensors Group launched the MR Series of linear position sensors for use in measuring the ram position of hydraulic and pneumatic cylinders. The MR Series is designed to be a drop-in form, fit, and function replacement for magnetostrictive sensors but with much more robust construction and a lower cost of ownership, specifically targeting port-mounted […]

The history of electric power has been stained by several devastating incidents triggered by natural hazards, technological failures, malicious actions, and human error.

NLB Corp. introduced the MGV24-1200, a new multi-gun valve that allows two or more high-pressure water jet lances (or other accessories) to be operated from the same 24,000 psi pump unit and can be rebuilt in the field in just five minutes. The MGV24-1200 can be used with any dump-style lance, and the lances can […]

Los Angeles sits alongside the world’s largest body of water, and naturally the city’s Department of Water & Power (LADWP) placed its generating stations along the shoreline to take advantage of that abundant resource for cooling. The LADWP built three coastal generating stations that provide the city with 2,162 MW, about 35% of the peak annual demand.

On Feb. 22, 2013, the U.S. Environmental Protection Agency (EPA) proposed a rule, 78 Fed. Reg. 12459, that will require 36 states to eliminate an exemption to Clean Air Act (CAA) emission requirements for exceedances that occur during periods of startup, shutdown, or malfunction (SSM).

The Wall Street Journal ( WSJ) recently reported that 14 of the 29 states that have adopted a renewable procurement mandate are currently considering legislation that would “water down or repeal” the renewable set-aside. Proponents of repeal describe their motivation as simple economics: Renewable power increases costs to electric consumers.

The LM6000 is the most widely used aeroderivative combustion turbine (CT) in the world, with more than 1,000 installations. As with all CTs, power output and heat rate degrade markedly during warm weather. The ARCTIC (Absorption Refrigeration Cycle Turbine Inlet Conditioning) system eliminates this deficiency.

Modern heat recovery steam generator (HRSG) design must balance operating response with the reduction in life of components caused by daily cycling and fast starts. Advanced modeling techniques demonstrate HRSG startup ramp rates can be accelerated without compromising equipment life.

URS recently performed a combined cycle repowering study to determine the feasibility and economics of repowering an existing steam turbine that went into service in the 1950s. The competing option was building a new combined cycle unit. The results of the study provide insight for others considering the same alternatives.

Only through proper troubleshooting and then solving the underlying problems can control loop performance be improved. Process design certainly plays a role in control loop performance, but experience has shown that the majority of control loops can perform better—provided that the root cause of the poor performance is found and corrected.