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Power


Monthly Issue | March 1, 2015

DOE Wind Forecasting Grant Goes to Finnish Firm

The U.S. Department of Energy (DOE) has awarded a $2.5 million contract to Finnish environmental and industrial data firm Vaisala to coordinate a study of methods to improve wind energy…


Speaking of Cuba, Change, and Coincidence

Sometimes, circumstances have a way of developing in such an unexpectedly serendipitous way that they practically force one to take notice. So it is with Cuba and its power sector.…


Cambodia’s Largest Hydropower Plant Begins Operation

The 338-MW Russey Chrum Krom hydropower plant in southwestern Koh Kong province, Cambodia, was inaugurated on Jan. 12. The Chinese-built project is the largest hydropower station located in the Southeast…


U.S., Netherlands Harness Waste Gases for Distributed Generation

Methane emissions are garnering increasing attention because of their potential impact on the climate. Though far less methane is released to the atmosphere than carbon dioxide, methane has 20 to…


Entergy’s Ninemile 6 Plant Completes Construction

Entergy Louisiana’s two-unit, 560-MW combined cycle plant in Westwego, La., just outside New Orleans, completed construction on Dec. 26, both under budget and several months ahead of its original schedule…


Power Shortages Challenge Eskom, Force Load Shedding in South Africa

The South African power system is severely constrained and will remain tight until at least the end of April, according to Eskom. The company generates approximately 95% of the electricity…


A Handheld Fuel Cell Generator

After decades of potential but limited deployment, fuel cells are beginning to carve out a role in grid-scale generation (see “59-MW Fuel Cell Park Opening Heralds Robust Global Technology Future”…


Manufacturing Supercapacitors from Atmospheric Carbon Dioxide

Researchers at Oregon State University (OSU) have developed a method to manufacture nanoporous graphene for use in supercapacitors from atmospheric carbon dioxide (CO2). Graphene is a form of carbon that…


POWER Digest (March 2015)

TIC to Build First U.S. J-series GT Plant. The Industrial Co. (TIC), a wholly owned subsidiary of Kiewit Corp.,was recently awarded an engineering, procurement, and construction contract to build a…


Advanced Bearing Technology Eliminates Subsynchronous Steam Turbine Vibrations

A facility’s steam turbine ranks at, or at least near, the top of the list of vital power plant equipment. Without it, the thermal energy in pressurized steam can not…


Cape Wind Finally Blows Out

If ever there were a case of winning all the battles and losing the war, it would be the saga of the long-delayed-and-now-probably-dead Cape Wind offshore wind project in Massachusetts.…


Water and Wastewater Treatment Technology Update

  The handling of power plant water and wastewater is becoming increasingly complex. Fortunately, innovative treatment technologies can help. Recent advances include forward osmosis, membrane bioreactor wastewater treatment systems, and…


Feedwater Chemistry Meets Stainless Steel, Copper, and Iron

Developing a feedwater chemistry program that will minimize corrosion across a variety of metallurgies doesn’t have to be difficult. This article reviews the requirements for three common metallurgies in condensate…


Mining for Lithium in Geothermal Brine: Promising but Pricey

Brine, the waste stream of the geothermal power production cycle, is usually considered a nuisance. High in corrosive minerals, even when reinjected, it’s challenging to manage. So when Simbol Inc.…


Save Power with Natural Cooling for Building Ventilation

Tougher environmental regulations are pushing for more energy efficient coal plants. Every kilowatt counts, and the boiler building ventilation system can free up many of them. With the final Clean…


SCR Reheat Burners Keep NOx in Spec at Low Loads

Optimal NOx removal by a selective catalytic reduction (SCR) system requires the inlet gas temperature to remain within a prescribed range. How does a baseload unit meet NOx permit limits…


Protecting Steam Cycle Components During Low-Load Operation of Combined Cycle Gas Turbine Plants

How low can you go? That’s the question owners of gas turbine combined cycle plants are asking these days as they are being called upon to operate those units for…


Are Flexible Generation Plants Performing as Expected?

Highly flexible, fast-ramping, fast-cycling combined cycle plants hit the market with a big splash a few years ago. But are they performing as advertised? Though the few operational plants are…


New Zealand Strives to Maximize the Value of Geothermal Wastewater

Using the heat from geothermal discharge water, or brine, is just one way to maximize the value of this “waste” stream. New Zealand, a geothermal energy leader, also is pursuing…


Nuclear Industry Pursues New Fuel Designs and Technologies

Enriched uranium, the most commonly used fuel in commercial nuclear reactors worldwide, has many well-known advantages; however, recent events have underscored its disadvantages. Can new fuel technologies be developed and…


FERC’s Work on the Clean Power Plan

One of the most controversial issues facing the energy world today is how our electric sector will respond to the U.S. Environmental Protection Agency’s (EPA’s) proposed Clean Power Plan (CPP).…


New Zealand’s Geothermal Industry Is Poised for the Future

Geothermal power is New Zealand’s most reliable renewable energy source. The country, which is justifiably proud of its geothermal facilities, faces economic forces familiar to the rest of the developed…


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