Smart Grid

A technology developed by the University of Delaware (UD) and NRG Energy that provides a two-way interface between electric vehicles and the power grid earlier this year became an official paid resource on PJM Interconnection’s regional grid (Figure 4). One of the first of its kind, the project proves the so-called “vehicle-to-grid” (V2G) concept can sell electricity from electric vehicles.

A municipal utility in the South may not be where you’d expect to find an exemplary smart grid implementation, but that’s just fine with EPB Chattanooga. Its leaders are raking in the kudos—including POWER’s 2013 Smart Grid Award—and their community is attracting new businesses in response to a fiber-optic-based system that has helped raise the profile of their city and bolster the sustainability of their utility.

The Senate Committee on Commerce, Science, and Transportation on Tuesday unanimously approved a bipartisan bill that bolsters efforts by the National Institute of Standards and Technology (NIST) to craft a cybersecurity framework.

A final rule issued last week by the Federal Energy Regulatory Commission (FERC) to foster competition and transparency in ancillary services markets creates new opportunities for energy storage technologies to help transmission customers self-supply their own Regulation and Frequency Response service requirements while opening up certain ancillary services markets to all generators selling at market-based rates.

California and Texas equally show the most progress in modernizing their electric systems with smart grid technologies compared to other U.S. states, a new evaluation of the nation’s grid modernization efforts shows.

An updated energy flow chart released by the Lawrence Livermore National Laboratory (LLNL) that visually depicts the relative size of primary energy resources and end uses in the U.S., with fuels compared on a common energy unit basis, shows the nation consumed more natural gas and renewables but less coal in 2012.

Despite technical and financial hurdles, annual global demand for grid-scale energy storage is expected to soar to 185.4 GWh by 2017, which means a possible 231% average year-on-year demand growth between 2012 and 2015, according to Lux Research.

The electricity grid has been characterized as the world’s largest and most complicated machine. The grid, like all machines, requires periodic upgrades and maintenance to prevent outages during the normal course of business, and it can be brought down by various outside forces. Solar flares and cyber attacks have temporarily crippled the machine, but an electromagnetic pulse event would be the “ultimate cyber security catastrophe.”

Beacon Power Corp. was founded in 1997 to develop flywheel-based energy storage technology. By 2007, the 100-kW/25-kWh Gen 4 flywheel system was commercialized and deployed in several projects. However, market conditions pushed the company into bankruptcy in late 2011. The company has since emerged, reinvigorated with new investment and a new name: Beacon Power LLC.

What if you could send a control message between two points on the electricity grid—say between a control room operator and a turbine or between a system operator and a generating plant—and know that there’s no way that message can be intercepted, altered, or spoofed to effect malicious ends? That possibility may be only a couple of years away.