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The Smart Grid refers to the modernization of the electricity supply system. It monitors, protects, and automatically optimizes the operation of its interconnected elements in order to guarantee the supply of electricity. The Smart Grid features two-way communication—between the facility and the utility company—so that both parties can see how much electricity is used, and when and how much it costs. As part of Smart Grid implementation, commercial and residential consumers of electricity reduce their consumption (shed load) at critical periods, and can often receive financial incentives for doing so.
According to a 2003 Dept. of Energy (DOE) survey, lighting and HVAC together account for two-thirds of the electrical power usage in a typical office building. As a result, lighting and HVAC control strategies, such as participating in demand response (DR) programs, offer the best opportunity to help building clients become more energy efficient.
This becomes even more important as newly established green codes, standards, and rating systems are moving municipalities toward legislated DR implementation. California’s newly adopted CalGreen, codes including ASHRAE Standard 189.1 and the International Green Construction Code (IgCC), and the U.S. Green Building Council’s imminent LEED 2012 update all have DR components.
How it works
The Smart Grid is an automated electric power system that monitors and controls grid activities, ensuring the two-way flow of electricity and information between power plants and consumers—and all points in between. Up and down the electric power system, the Smart Grid will generate billions of data points from thousands of system devices and hundreds of thousands of consumers. DR programs in many states offer incentives to reduce energy use during these peak hours, and offer lower electricity prices for off-hours use.
What makes the grid “smart” is the ability to sense, monitor, and in some cases, control (automatically or remotely) how the system operates or behaves under a given set of conditions. In its most basic form, implementation of a smarter grid is adding intelligence to all areas of the electric power system to optimize our use of electricity.
How do commercial facilities benefit?
The need to better manage the electrical grid is driving Smart Grid implementation, but commercial entities benefit from energy management strategies. They:
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