Latest
-
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
-
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
-
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
-
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
-
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
-
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
-
Geothermal
New Zealand Strives to Maximize the Value of Geothermal Wastewater
Geothermal resources have important strategic value for New Zealand, as they are able to directly supply both heat and electricity (see “New Zealand Geothermal Industry Is Poised for the Future” in this
-
Nuclear
Nuclear Industry Pursues New Fuel Designs and Technologies
Late last year, Japanese engineers and technicians accomplished a major milestone nearly four years after the most damaging light-water reactor accident in history at the Fukushima Daiichi nuclear station
-
Renewables
New Zealand’s Geothermal Industry Is Poised for the Future
Contact Energy fully commissioned New Zealand’s largest geothermal power plant last year, nudging installed geothermal capacity to a shade over 1 GW. Nearly 80% of the country’s electricity is sourced from
-
Legal & Regulatory
Ohio Regulators Deny AEP’s Coal Plant Cost Recovery Plan
The Public Utilities Commission of Ohio (PUCO) approved an electric security plan (ESP) for AEP Ohio—a unit of American Electric Power—on Feb. 25, but declined to adopt the company’s proposed power purchase agreement (PPA) as it relates to the Ohio Valley Electric Corp. (OVEC). The PPA rider was a point of contention with several groups […]