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5U.S. Department of Energy, Office of Electricity Delivery and Energy Reliability. The smart grid: an introduction[EB/OL]. [2009-12- 01]. http://www, oe. energy, gov/1165, htm.
6U.S. Department of Energy. Smart grid system report [R/ OL].[ 2009-12-01]. http://www, oe. energy, gov/ DocumentsandMedia/SGSRMain_090707_lowres, pdf.
7National Energy Technology Laboratory. The modern grid strategy: characteristics of the modern grid [EB/OL].[2009- 12-01]. http://www, netl. doe. gov/moderngrid/opportunity/ vision_characteristics, html.
8Smart Grid Task Force. Evolution and progress of smart grid development at the department of energy [EB/OL]. [2009-12-01]. http://www, narucmeetings, org/Presentations/ Evolution%20and%20Progress%20of%20Smart%20Grid% 20Development. pdf.
9Electric Power Research Institute. Smart grid values characteristics and metrics [EB/OL]. [2009-12-01]. http:// www. oe. energy, gov/DocumentsandMedia/Arshad_Mansoor. pdf.
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