POWER
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Geothermal
Mining for Lithium in Geothermal Brine: Promising but Pricey
Worldwide, the U.S. is the largest producer of geothermal power; however, geothermal energy provides less than 0.5% of total generation in the U.S. Given geothermal’s small piece of the U.S. electricity pie
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Water
Feedwater Chemistry Meets Stainless Steel, Copper, and Iron
Alloys found in the condensate and feedwater systems of power plants include carbon steel for piping, pumps, and in some cases heat exchangers. Many systems still have some copper-based alloys from admiralty
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Environmental
Save Power with Natural Cooling for Building Ventilation
With the final Clean Power Plan rule covering existing power plants scheduled for release this summer, and the amount of flexibility that has been afforded to the states to meet emissions targets, states have
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General
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 is
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Gas
Protecting Steam Cycle Components During Low-Load Operation of Combined Cycle Gas Turbine Plants
Originally, the modern combined cycle gas turbine (CCGT) unit was developed to act as a largely baseload source of generation due to its high thermal efficiency and low initial capital cost. But as markets
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Wind
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 forecasting in complex
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Gas
Are Flexible Generation Plants Performing as Expected?
The Lodi Energy Center (LEC) is a 296-MW 1 x 1 combined cycle plant in Lodi, Calif., just north of Stockton and east of the San Joaquin River delta (Figure 1). From the outside, there’s little to distinguish
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Renewables
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” in the
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Coal
SCR Reheat Burners Keep NOx in Spec at Low Loads
Selective catalytic reduction (SCR) systems installed in steam generators for NOx reduction are ordinarily designed for full boiler load conditions, when SCR inlet temperatures normally exceed unit-specific
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Commentary
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. Coincidence It all started
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