Transmission

An increased reliance on renewable energy could threaten reliability of the nation’s electric transmission grids by reducing the rotational mass and rotational inertia of on-line turbine generators, thus, reducing the capability of generators to respond to drops in voltage frequency. In fact, data collected from 1994 to 2009 for the Eastern Interconnection already reveals a drop in the grid’s capability (as measured in megawatts) to stop a very rapid drop in frequency — such as a drop of a tenth of a cycle per second.

In order to fully integrate wind and other dispersed sources of energy into the system, America’s patchwork transmission networks need to be more closely interconnected and synchronized. An advocate for the Tres Amigas merchant transmission project explains how the proposed facility will integrate the grid.

ABB buys Ventyx; Powerspan and WorleyParsons CO2 capture test results; Honeywell lands Progress Energy contract; Opower releases customer engagement platform; HECO picks Siemens for smart-grid stimulus project; and MORE.

Ultracapacitors and batteries work together to solve power quality problems.

Advancements in forecasting have improved the reliability of day-ahead and hour-ahead estimates of wind generation. Wind never will behave like a base-load power plant. But as system operators integrate wind forecasts into their planning and market processes, they’re transforming intermittent wind energy into a variable but reliable resource.

Generation

FEI Company, a diversified scientific instruments company providing electron and ion-beam microscopes and tools for nanoscale applications, completed a multiple system installation at the Materials Ageing Institute (MAI) in France, a utility-oriented research center financed by Electricite de France, the Tokyo Electric Power Co., the Kansai Electric Power Co. and the U.S. Electric Power Research Institute.

The one-day-in-10-years criterion might have lost its usefulness in today’s energy markets. The criterion is highly conservative when used in calculating reserve margins for reliability. Can the industry continue justifying the high cost of overbuilding?

During interviews for this month’s cover story, “Customer Service: 2020,” leaders in the world of back-office information technology (IT) spoke with Fortnightly about customer service and the smart grid. They came from companies as diverse as Oracle and Telus, HP and Convergys, Vertex and SAP. But whatever the company, whatever the discussion, almost every leader came around eventually to focus on a single agent of change—the rise of electric vehicles.