30 Sep '13, 5pm

Real-Time Monitoring Yields Payoffs in Power Distribution

Real-Time Monitoring Yields Payoffs in Power Distribution

, John McDonald, director of technical strategy and policy development for GE Energy Management in Atlanta, provides two vivid examples of the new challenges in electricity distribution . In San Diego, where well-to-do homeowners have installed photovoltaic arrays in large numbers along the coast, power output tends to spike around noon, when the morning fog has burned off. Since air conditioning is generally not required in the breezy homes, service panels usually are limited to 100 amps, so that a single service transformer feeds as many as 20 houses. “All these factors contribute to spikes in voltage variability when PV output is high, load is low, voltage regulation is electromechanical and, possibly, there's high impedance on the feeder," a source with Sempra Energy told McDonald, a designated IEEE smart grid expert.

Full article: http://spectrum.ieee.org/energywise/energy/the-smarter-gr...

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