Archive: Renewables

Former TVA CEO Will Take the Reins at PG&E

PG&E Corp. announced on April 3 the appointment of William “Bill” Johnson as the company’s new president and CEO. It also announced the appointment of 10 new directors to its board of directors. The board appointments will be effective as of the next in-person board meeting, which will be held as soon as practicable, the […]

How the DOE Is Looking to Save Hydropower

The Department of Energy (DOE) unveiled a slate of measures to help U.S. hydropower thrive as costs for wind and solar plummet. Measures will include a roadmap to identify hydro’s value in a future grid, and a first-of-its-kind prize designed to encourage innovative and faster pumped storage construction techniques. In her opening speech at Waterpower […]

Case Study: Monitoring Health and Performance of Grid-Scale Battery Installations

UniEnergy’s Technologies (UET) manufactures and installs large-scale energy storage solutions for utility, commercial, and microgrid applications. Their battery systems enable customers to address power needs, such as “frequency regulation” as well as “transmission generation deferral” and “peak shaving. This case study details how OSIsoft’s Connected Services enabled UET to offer capacity guarantees for their technology.

FPL Will Build World’s Largest Battery Storage System

Florida Power and Light Co. (FPL) has been building new solar farms and bringing gigawatts of new natural gas-fired generation capacity online in recent years. Now the utility has announced what it calls the world’s largest solar-powered battery storage system. FPL on March 28 said the Manatee Energy Storage Center, a 409-MW/900-MWh battery storage facility, […]

What Are Supercritical CO2 Power Cycles?

While conventional power plant cycles produce power from turbines using water or steam as the working fluid, supercritical carbon dioxide (sCO2) cycles use CO2 that is in a supercritical state—at a temperature and pressure above its critical point where liquid and gas phases are not distinguishable.  CO2 has a relatively low critical pressure of 7.4 megapascal […]

POWER Digest (April 2019): News Briefs from Around the World

The Netherlands Orders Early Closure of Coal Plants. The Dutch government on March 8 told Swedish power producer Vattenfall to stop using coal at the 650-MW Hemweg-8 hard coal-fired unit in Amsterdam by the

The Economic Thicket of Generating Cost Comparisons

Comparing the costs of differing electric generating technologies has become popular among advocates for particular technologies and those seeking to find the optimal approach to new generation. While getting

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Show Preview: ELECTRIC POWER

The ELECTRIC POWER Conference + Exhibition celebrates its 21st birthday this year, with the event scheduled for April 23–26 at the Mirage Events Center in Las Vegas, Nevada. ELECTRIC POWER for the past two