6.2 : Electricity Generation, Transmission, and Distribution




6.2.4 Electric Conversion Factors and Transmission and Distribution (T&D) Losses
Average Utility Average Utility Growth Rate
Delivery Efficiency (1, 2) Delivery Ratio (Btu/kWh) (2, 3) (2010-year)
1980 29.4% 11,614 -
1981 29.9% 11,405 -
1982 29.7% 11,481 -
1983 29.8% 11,437 -
1984 30.5% 11,195 -
1985 30.4% 11,228 -
1986 30.8% 11,068 -
1987 31.1% 10,964 -
1988 31.1% 10,967 -
1989 30.2% 10,844 -
1990 30.3% 10,754 -
1991 30.5% 10,696 -
1992 30.7% 10,609 -
1993 30.6% 10,618 -
1994 30.9% 10,521 -
1995 30.7% 10,587 -
1996 30.7% 10,602 -
1997 30.8% 10,570 -
1998 30.7% 10,581 -
1999 30.6% 10,618 -
2000 30.7% 10,600 -
2001 31.1% 10,471 -
2002 31.1% 10,473 -
2003 31.3% 10,396 -
2004 31.3% 10,421 -
2005 31.5% 10,405 -
2006 31.7% 10,333 -
2007 31.8% 10,383 -
2008 31.8% 10,347 -
2009 32.2% 10,230 -
2010 32.3% 10,570 -
2011 32.1% 10,633 -0.6%
2012 32.4% 10,516 0.3%
2013 32.7% 10,436 0.4%
2014 33.0% 10,354 0.5%
2015 33.1% 10,300 0.5%
2016 33.2% 10,292 0.4%
2017 33.1% 10,310 0.4%
2018 33.1% 10,305 0.3%
2019 33.1% 10,300 0.3%
2020 33.1% 10,301 0.3%
2021 33.2% 10,282 0.3%
2022 33.2% 10,277 0.2%
2023 33.2% 10,291 0.2%
2024 33.2% 10,281 0.2%
2025 33.1% 10,294 0.2%
2026 33.2% 10,266 0.2%
2027 33.3% 10,247 0.2%
2028 33.4% 10,218 0.2%
2029 33.5% 10,177 0.2%
2030 33.6% 10,148 0.2%
2031 33.7% 10,112 0.2%
2032 33.8% 10,088 0.2%
2033 33.9% 10,075 0.2%
2034 33.9% 10,067 0.2%
2035 34.0% 10,045 0.2%
Transmission and Distribution (T&D) losses as a:
Percent of Electric Generator Fuel Input 2.6%
Percent of Net Electricity Generated (4) 7.4%
Note(s): 1) Use these values to convert primary energy of electric generator fuel input to delivered energy. 2) Accounts for fuel conversion losses, plant use of electricity, and T&D losses. 3) Use these values to convert delivered electric energy to primary energy. 4) After fuel conversion losses and plant use of electricity.









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