Energy Information Administration - Electricity Price

Prof. Robert B. Laughlin
Department of Physics
Stanford University, Stanford, CA 94305

http://www.eia.doe.gov/cneaf/electricity/epm/table5_6_a.html
(Copied 30 Dec 08)

Assuming a typical price of $0.10/kilowatt-hour, the cost per joule is

Cost/joule = [$0.10/kilowatt-hour] / [ 1000 joule/kilowatt-sec x 60 sec/min x 60 min/hour] = 2.8 x 10-8 $/joule



Average Retail Price of Electricity to Ultimate Customers by End-Use Sector, by State
  Electric Power Monthly with data for September 2008
  Report Released: December 12, 2008
  Next Release Date: Mid-January 2009

Table 5.6.A. Average Retail Price of Electricity to Ultimate Customers by End-Use Sector, by State, September 2008 and 2007
(Cents per kilowatthour)
Census Division
and State
Residential
Commercial1
Industrial1
Transportation[1]
All Sectors
Sept-08 Sept-07 Sept-08 Sept-07 Sept-08 Sept-07 Sept-08 Sept-07 Sept-08 Sept-07
New England 18.12 16.46 15.61 14.96 13.45 12.23 12.33 8.85 16.05 14.98
Connecticut 20.24 18.5 16.51 14.9 14.3 12.13 17.98 13.94 17.47 15.75
Maine 16.21 15.23 13.19 12.5 11.15 11.49 -- -- 13.46 13.18
Massachusetts 17.85 16.24 15.83 15.86 14.66 13.28 9.44 5.92 16.27 15.5
New Hampshire 16.26 14.67 14.81 13.91 13.8 11.1 -- -- 15.15 13.64
Rhode Island 18.13 15.47 15.17 14.23 13.74 12.84 -- -- 16.07 14.54
Vermont 15.12 14.28 12.77 12.19 9.12 8.87 -- -- 12.51 12.01
Middle Atlantic 16.07 14.59 15.13 13.87 8.36 8.06 14.82 12.21 14.1 13
New Jersey 17.1 15.61 15.95 14.71 12.08 11.88 19.1 13.05 15.92 14.72
New York 19.42 17.16 17.97 16.13 10.48 9.33 16.36 13.92 17.63 15.73
Pennsylvania 11.8 11.31 9.48 9.17 6.94 6.86 7.94 6.72 9.36 9.15
East North Central 10.77 9.99 8.91 8.46 6.6 6 8.9 7.04 8.67 8.07
Illinois 11.27 10.68 8.44 8.64 7.67 6.75 8.45 6.62 9.06 8.72
Indiana 9.3 8.4 8.07 7.38 5.9 5.25 10.29 10.89 7.41 6.77
Michigan 11.01 10.16 9.43 8.43 7.11 6.27 12.3 9.09 9.17 8.25
Ohio 10.68 9.95 9.33 8.67 6.23 5.78 12.42 11.2 8.55 8.04
Wisconsin 11.78 10.84 9.58 8.92 6.84 6.25 -- -- 9.22 8.55
West North Central 9.18 8.51 7.36 6.9 5.67 5.23 7.64 8.67 7.42 6.98
Iowa 10.21 9.68 7.73 7.35 5.27 5.07 NM 8.16 7.4 7.14
Kansas 9.43 8.63 7.87 7.04 5.96 5.19 -- -- 7.81 7.06
Minnesota 9.79 8.87 7.8 7.3 6.15 5.66 7.91 9 7.82 7.27
Missouri 8.34 7.77 6.76 6.42 5.32 4.98 7.34 8.38 7.04 6.69
Nebraska 9.24 8.75 7.2 6.85 5.58 4.99 -- -- 7.2 6.86
North Dakota 8.47 8.24 7.11 6.95 5.76 5.49 -- -- 7.04 6.86
South Dakota 9.1 8.74 7.19 6.86 5.51 5.23 -- -- 7.46 7.2
South Atlantic 11.31 10.38 9.77 8.7 6.66 5.9 13.86 9.8 9.9 8.98
Delaware 14.68 13.68 12.81 11.29 10.86 9.12 -- -- 13.03 11.7
District of Columbia 13.52 12.22 13.93 12.73 14.33 10.2 18.83 11.5 14.01 12.55
Florida 12.06 11.28 10.38 9.57 8.79 7.82 10.64 9.64 11.17 10.37
Georgia 10.67 9.59 9.24 7.86 7.1 5.59 7.62 6.83 9.35 8.09
Maryland 14.29 13.26 14.06 11.71 11.04 9.86 15.72 10.82 13.9 12.18
North Carolina 10.17 9.6 7.9 7.62 5.91 5.88 6.61 -- 8.41 8.19
South Carolina 10.36 9.2 8.83 7.88 5.7 5.2 -- -- 8.28 7.47
Virginia 10.52 9.13 8.07 6.58 6.11 5.1 8.67 6.83 8.67 7.37
West Virginia 7.41 6.88 6.13 5.81 4.34 4.05 5.58 5.32 5.69 5.4
East South Central 9.52 8.22 9.17 7.91 6.11 5.08 14.04 8.55 8.15 7.04
Alabama 10.89 9.25 10.18 8.6 6.8 5.32 -- -- 9.21 7.66
Kentucky 7.82 7.16 7.47 6.66 5.1 4.33 -- -- 6.39 5.73
Mississippi 10.86 9.35 10.5 8.69 7.07 6 -- -- 9.58 8.19
Tennessee 8.79 7.56 8.86 7.8 6.32 5.35 14.04 8.55 8.06 7
West South Central 12.52 11.4 10.53 9.4 8.52 7.08 9.01 8.59 10.72 9.58
Arkansas 10.17 9.02 8.1 6.97 6.27 5.51 -- -- 8.24 7.29
Louisiana 11.4 9.25 11.1 8.75 9.13 6.47 14.13 11.75 10.52 8.26
Oklahoma 10.36 9.72 9.04 8.11 6.54 5.37 -- -- 8.87 8.03
Texas 13.42 12.5 10.89 10.01 8.98 7.82 8.61 8.37 11.38 10.47
Mountain 10.36 9.77 8.75 7.92 6.5 6.14 9.35 7.56 8.69 8.15
Arizona 10.61 10.16 9.1 8.68 6.7 6.19 -- -- 9.48 9.12
Colorado 11.01 9.1 9.36 7.23 7.31 5.9 9.94 6.84 9.37 7.55
Idaho 7.3 6.78 5.89 5.24 5.03 4.48 -- -- 5.89 5.36
Montana 9.74 9.15 9.06 7.97 6.45 6.06 -- -- 8.24 7.65
Nevada 11.29 11.88 9.72 10.13 8.5 9.57 9.5 10.13 9.89 10.62
New Mexico 10.54 9.2 8.99 7.55 7.24 5.62 -- -- 8.9 7.48
Utah 8.71 8.43 7.4 7.13 5.08 5.07 8.38 7.8 7.03 6.91
Wyoming 8.84 8.26 6.89 6.29 4.5 4.08 -- -- 5.69 5.28
Pacific Contiguous 12.8 13.06 12.44 12.21 8.67 8.64 8.55 8.34 11.75 11.77
California 14.59 14.97 14.21 13.99 11.09 10.92 8.59 8.37 13.77 13.78
Oregon 8.69 8.78 7.27 7.23 5.43 5.24 6.7 6.79 7.2 7.17
Washington 7.82 7.61 6.69 6.52 5.05 4.78 5.76 5.65 6.56 6.43
Pacific Noncontiguous 29.52 20.65 24.83 17.47 25.86 16.52 -- -- 26.53 18.12
Alaska 16.8 15.39 13.44 12.17 13.72 11.86 -- -- 14.51 13.05
Hawaii 36.94 23.51 33.48 21.4 30.3 18.21 -- -- 33.32 20.87
U.S. Total 11.94 10.94 10.77 9.88 7.36 6.55 13.16 10.67 10.31 9.44
  [1] See Technical notes for additional information on the Commercial, Industrial and Transportation sectors.
  NM = Not meaningful due to large relative standard error or excessive percentage change.  
  Notes: See Glossary for definitions. Values for 2007 and 2008 are preliminary estimates based on a cutoff model sample.  See Technical Notes for a discussion of the sample design for the Form EIA-826. Utilities and energy service providers may classify commercial and industrial customers based on either NAICS codes or demands or usage falling within specified limits by rate schedule. Changes from year to year in consumer counts, sales and revenues, particularly involving the commercial and industrial consumer sectors, may result from respondent implementation of changes in the definitions of consumers, and reclassifications. Retail sales and net generation may not correspond exactly for a particular month for a variety of reasons (i.e., sales data may include imported electricity). Net generation is for the calendar month while retail sales and associated revenue accumulate from bills collected for periods of time (28 to 35 days) that vary dependent upon customer class and consumption occurring in and outside the calendar month. Totals may not equal sum of components because of independent rounding.
  Source: Energy Information Administration, Form EIA-826, "Monthly Electric Sales and Revenue Report with State Distributions Report."