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HomeMy WebLinkAboutAttachment 2 - Power Supply WorkshopEnergy Purchases - MWh Delivered to Transmission Total Bulk Energy Year Substations System Losses (1)Purchased 2005 142,852 3,767 146,619 2006 153,210 4,018 157,228 2007 154,342 4,042 158,384 2008 156,113 4,076 160,189 2009 153,677 4,018 157,695 2010 154,483 4,011 158,494 2011 156,407 4,137 160,544 2012 150,996 3,980 154,976 2013 154,280 3,870 158,149 2014 154,874 3,372 158,245 2015 149,601 2,609 152,210 2016 158,324 2,760 161,084 2017 161,517 2,807 164,324 2018 158,790 2,758 161,548 Actual vs. Budgeted Energy Purchases - MWh Year Actual Budget % Difference 2005 146,619 145,382 0.9% 2006 157,228 150,168 4.7% 2007 158,384 156,963 0.9% 2008 160,189 161,604 -0.9% 2009 157,695 163,220 -3.4% 2010 158,494 160,000 -0.9% 2011 160,544 162,000 -0.9% 2012 154,976 162,000 -4.3% 2013 158,149 163,082 -3.0% 2014 158,245 164,713 -3.9% 2015 152,210 164,729 -7.6% 2016 161,084 163,778 -1.6%Average Difference 2017 164,324 163,421 0.6%over 14 Years 2018 161,548 165,095 -2.1% +/- 2.5% Attachment 2 Summary Historical Energy Usage Data 2005 through 2018 Page 1 of 2 Attachment 2 Summary Historical Energy Usage Data 2005 through 2018 Energy Sales to Customers - MWh Change from Previous Year Energy Sales, MWh Year, % 2005 136,339 2006 144,269 5.8% 2007 147,091 2.0% 2008 148,305 0.8% 2009 146,875 -1.0% 2010 147,647 0.5% 2011 149,978 1.6% 2012 146,014 -2.6% 2013 147,389 0.9% 2014 142,584 -3.3% 2015 140,819 -1.2% 2016 151,527 7.6%Average Change 2017 156,562 3.3%over 14 Years 2018 151,944 -2.9% +/- 2.6% Distribution System Losses - MWh Delivered to Losses as a % Energy Year Losses (2)Substations Delivered to Subs 2005 6,513 142,852 4.6% 2006 8,941 153,210 5.8% 2007 7,251 154,342 4.7% 2008 7,808 156,113 5.0% 2009 6,802 153,677 4.4% 2010 6,836 154,483 4.4% 2011 6,429 156,407 4.1% 2012 4,982 150,996 3.3% 2013 6,891 154,280 4.5% 2014 12,290 154,874 7.9% 2015 8,782 149,601 5.9% 2016 6,797 158,324 4.3%Average Losses 2017 4,955 161,517 3.1%over 14 Years 2018 6,846 158,790 4.3% 4.7% Notes: 1 Transmission System Losses: This is the amount of MWh that NVEnergy requires the District to pay by tariff as a loss. This is defined as a fixed percentage of MWh Delivered to the District 2 Distribution System Losses: This is the difference between energy delivered to our substations and what is sold to District customers. Historically this value has been between 4% and 7%. Page 2 of 2