Archive: Water

Q&A With Geothermal Experts

Geothermal energy has been around forever, used as a heating source across the world. Today it has surfaced as another renewable resource, with advancements in drilling technology bringing down costs and opening new areas to development. In conjunction with the feature article on geothermal in the May 2019 issue of POWER, we sought opinions from […]

Advancements in Water Ultrafiltration Technology

Strained water resources across the world necessitate innovative ways for power plants to more efficiently use, and reuse, the water that is available. At the U.S. Department of Energy’s Argonne National

Federal Court Vacates Parts of Obama EPA’s ELG Rule 

In a legal victory for environmental groups, a federal court has vacated key portions of the Environmental Protection Agency’s (EPA’s) November 2015-promulgated effluent limitations guidelines (ELGs) for steam electric power plants, deeming them “unlawful.”  The decision adds a dramatic new element of uncertainty in timing of the rule, which the Trump administration has said it […]

Power Companies Refute Findings of Widespread Coal Plant Groundwater Contamination

An estimated 91% of U.S. coal power plants that submitted groundwater monitoring data as required by the Environmental Protection Agency’s (EPA’s) 2015 Coal Combustion Residuals (CCR) rule have unsafe levels of one or more contaminants, a collaborative analysis of the monitoring data by several environmental groups suggests.  The March 4 report is significant because power […]

Power Supplies in Pacific Northwest Tighten as Deep Freeze Grips Region

Energy supplies are tight in the Pacific Northwest, a region that has been stricken with unseasonably frigid weather and is bracing for deep freezes as a mass of Arctic air descends on the region.    The Bonneville Power Administration (BPA), a federal power marketer that sells wholesale power from 31 federal dams and one nuclear […]

High-Purity Boiler Water pH Measurement

Water quality monitoring and control are two of the most critical operations that power plants employ to protect assets, such as boilers and steam turbines, from corrosion by assuring the correct addition of

How to Alleviate Waterside Issues in Boilers and HRSGs

It is fairly common for power plant engineers and maintenance managers to focus on fireside issues rather than waterside issues during routine maintenance outages. However, that could be a mistake. Waterside