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Electric Transmission and Distribution
Fact Sheet

Our electric transmission and distribution business delivers electricity in a 5,000-square-mile area that includes Houston, the nation's fourth largest city. We deliver electricity to over 2 million customers on behalf of 74 competitive retailers.

Metered Delivery Customers    2 million
Average Delivery Customers by Classification  
Residential  1,733,319  87.10 percent
Commercial  259,682  12.76 percent
Industrial  2,085  0.10 percent
Municipal/Public Utilities  788  0.04 percent
Megawatt hours delivered in 2007  76.29 billion
Residential  23,999,085  31.46 percent
Commercial  21,071,547  27.62 percent
Industrial  31,058,615  40.71percent
Municipal/Public Utilities  160,209  0.21 percent


Transmission and Distribution
 Overhead distribution lines  27,241miles
 Overhead transmission lines  3,738 miles
 Underground distribution lines  18,955 miles
 Underground transmission lines  28.4 miles
 Substations  229
 Service centers  14