Electric Power Annual Update / Revision                                        

Data for 2015 updated: November 21, 2016

Table update:

    The following tables are being withheld pending the availability of additional data:

    • Table 8.5. Revenue and Expense Statistics for U.S. Cooperative Borrower-Owned Electric Utilities
    • Table 8.6.A. Noncoincident Peak Load by North American Electric Reliability Corporation Assessment Area, Actual
    • Table 8.6.B. Noncoincident Peak Load by North American Electric Reliability Corporation Assessment Area, Projected
    • Table 8.7.A. Net Energy for Load by North American Electric Reliability Corporation Assessment Area, Actual
    • Table 8.7.B. Net Energy for Load by North American Electric Reliability Corporation Assessment Area, Projected
    • Table 8.8. Summer Net Internal Demand, Capacity Resources, and Capacity Margins by North American Electric Reliability Corporation Assessment Area, Projected
    • Table 8.9. Winter Net Internal Demand, Capacity Resources, and Capacity Margins by North American Electric Reliability Corporation Assessment Area, Projected
    • Table 8.10.A. Existing Transmission Capacity by High-Voltage Size
    • Table 8.10.B. Proposed Transmission Capacity Additions by High-Voltage Size
    • Table 8.11.A. U.S. Transmission Circuit Outages by Type and NERC region
    • Table 8.11.B. U.S. Transformer Outages by Type and NERC region
    • Table 8.12.A. U.S. Transmission Circuit Sustained Automatic Outage Counts and Hours, by High-Voltage Size and NERC Region
    • Table 8.12.B. U.S. Transformer Sustained Automatic Outage Counts and Hours by High-Voltage Size and NERC Region
    • Table 8.13.A. U.S. Transmission Circuit Sustained Automatic Outage Counts and Hours by Cause Code and by NERC Region
    • Table 8.13.B. U.S. Transformer Sustained Automatic Outage Counts and Hours by Cause Code and by NERC Region

Data for 2014 updated: May 20, 2016

May 20, 2016

EPA Tables 9.1 and 9.5 were being revised due to the omission of roughly 6.3 million metric tons of CO2 emissions at the time of original publication. Although the national impact of this change was less than 0.3%, some state level impacts were more significant (up to 6.2% in Connecticut).

February 16, 2016

Table update:

    The following tables are being withheld pending the availability of additional data:

    • Table 8.5. Revenue and Expense Statistics for U.S. Cooperative Borrower-Owned Electric Utilities
    • Table 8.6.A. Noncoincident Peak Load by North American Electric Reliability Corporation Assessment Area, Actual
    • Table 8.6.B. Noncoincident Peak Load by North American Electric Reliability Corporation Assessment Area, Projected
    • Table 8.7.A. Net Energy for Load by North American Electric Reliability Corporation Assessment Area, Actual
    • Table 8.7.B. Net Energy for Load by North American Electric Reliability Corporation Assessment Area, Projected
    • Table 8.8. Summer Net Internal Demand, Capacity Resources, and Capacity Margins by North American Electric Reliability Corporation Assessment Area, Projected
    • Table 8.9. Winter Net Internal Demand, Capacity Resources, and Capacity Margins by North American Electric Reliability Corporation Assessment Area, Projected
    • Table 8.10.A. Existing Transmission Capacity by High-Voltage Size
    • Table 8.10.B. Proposed Transmission Capacity Additions by High-Voltage Size
    • Table 8.11.A. U.S. Transmission Circuit Outages by Type and NERC region
    • Table 8.11.B. U.S. Transformer Outages by Type and NERC region
    • Table 8.12.A. U.S. Transmission Circuit Sustained Automatic Outage Counts and Hours, by High-Voltage Size and NERC Region
    • Table 8.12.B. U.S. Transformer Sustained Automatic Outage Counts and Hours by High-Voltage Size and NERC Region
    • Table 8.13.A. U.S. Transmission Circuit Sustained Automatic Outage Counts and Hours by Cause Code and by NERC Region
    • Table 8.13.B. U.S. Transformer Sustained Automatic Outage Counts and Hours by Cause Code and by NERC Region

Data for 2013 Updated: October 07, 2015

October 08, 2015

Table update:

    At the time of publication some tables were not available. The following tables have been updated and added:

    • Table 8.6A
    • Table 8.6B
    • Table 8.7A
    • Table 8.7B
    • Table 8.8B
    • Table 8.9B
    • Table 8.10A
    • Table 8.10B
    • Table 8.11A
    • Table 8.11B
    • Table 8.12A
    • Table 8.12B
    • Table 8.13A
    • Table 8.13B

Data for 2013 Re-released: June 08, 2015
Revison Date: June 05, 2015

June 08, 2015

Data revision.

  • Tables 2.1 through 2.14 are being revised to correct imputation errors.
  • Tables 10.8 and 10.9 are being revised because data was displayed in the wrong units.
  • Tables 9.1, 9.5, A.1, A.2, A.3, and A.4 (pertaining to Emissions from energy consumption at conventional power plants and combined-heat-and-power plants) are being published for the first time for 2013.


Contact: Electricity data experts