The data displays the average expenses for the operation of hydroelectric power plants run by major U.S. investor-owned electric utilities from 1998 to 2016. In 2016, this figure came to 6.65 mills per kilowatt hour. A mill is a monetary cost and billing unit equal to 1/1000 of the United States dollar (equivalent to 1/10 of one cent).
1998 | 3.09 |
1999 | 3.35 |
2000 | 3.52 |
2001 | 4.27 |
2002 | 3.71 |
2003 | 3.47 |
2004 | 3.83 |
2005 | 3.95 |
2006 | 3.76 |
2007 | 5.44 |
2008 | 5.78 |
2009 | 4.88 |
2010 | 5.33 |
2011 | 5.13 |
2012 | 6.71 |
2013 | 6.56 |
2014 | 7.3 |
2015 | 8.37 |
2016 | 6.65 |