On the seventh anniversary of Hurricane Katrina, Gulf Coast residents watched as Category 1 Hurricane Isaac bore down on the New Orleans region, evoking memories of the costliest U.S. hurricane disaster on record. On Aug.
Much of the smart grid’s strength lies in its use of wireless technology to improve monitoring, information flow and efficiency. As powerful as that combination may be, a couple of California utilities have taken it to a new low. That is to say they have taken it underground.
With the Institute of Electric Efficiency reporting more than 36 million smart meters installed from 2007 through May 2012 and a target of 65 million by 2015, it appears that smart meters are here to stay.
On most distribution networks (except maybe in rural areas), the voltage levels typically reduce to a couple of percentage points from nominal when the sun rises, people wake up and they start using more electricity. Conversely, as the sun sets, the voltage creeps back up, and by 10 p.m.
It could be argued that the potential for success of a particular innovation can be measured by its effect on the existing technology operating around it. If that’s the case, then smart meters are here to stay.
Tornadoes, earthquakes, hurricanes, unprecedented rainfalls and record-high 500-year flooding levels in 2011 have all together caused massive damage to the grid, homes, businesses and public infrastructure and billions in damage costs.
Infiniti Research Limited’s report, “Global Smart Energy Meter Market 2010–2014,” forecasts that market will reach $19.5 billion in 2014. Key factors contributing to market growth are initiatives from regulatory authorities and home area networking connectivity technology.
The National Electrical Code (NEC) contains many provisions where calculations are involved. Understanding the purpose of these calculations, as well as how to perform them, is essential to individuals who are in the electrical industry.
With distributed sources, there can be a mix of grid-connected and grid-independent sources. For example, take the combination of photovoltaic sources in this figure. Ideally, there should be a mix of centralized and decentralized (distributed) generators.
Although the hyperbole of the recent elections is past us, one of the buzzwords that gained momentum in the process was the term “smart grid.” I agree with those in the electric utility industry who take exception to such a concept, with all the implications associated with it, including that the c
Electric vehicles are closer than ever to becoming a large-scale reality. Chevrolet’s much-hyped Volt is still on schedule for a 2010 introduction, despite the manufacturer’s financial woes. Toyota may be releasing its own plug-in hybrid (PHEV) to fleet customers later this year.