Growth of Renewable Energy in Duke Energy Indiana Service Area Nancy Connelly, November 10, 2017
Growth of Renewable Energy Duke Energy Indiana Service Area Topics to be covered in this presentation Growth of net metering in DEI service area Number of installations Capacity of installations Growth of net metering in Bloomington/Monroe County Utility-scale standalone generation Customer-owned Duke Energy owned 2
Net Metered Installations Duke Energy Service Area Number of Installations Capacity (MW) Residential 825 (802 PV, 23 wind) 5.53 (5.46 PV, 0.07 wind) Nonresidential 226 (213 PV, 13 wind) 28.34 (26.19 PV, 2.15 wind) Monroe County Number of Installations Capacity (MW) Residential 391 2.21 Nonresidential 60 4.13 3
Growth in Number of Installations, Duke Energy Indiana Service Area 600 Total Number of Net Metering Installations By Year, 2002-2016 500 Number of Installations 400 300 200 100 0 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 Year 4
Growth in Number of Installations, Duke Energy Indiana Service Area 1200 Total Number of Net Metering Installations By Year, 2002-2017 1000 Number of Installations 800 600 400 200 0 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Year 5
Net Metering Capacity Growth, Duke Energy Indiana Service Area Total Capacity of Net Metering Installations By Year, 2002-2016 10 9 8 7 6 MW 5 4 3 2 1 0 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 Year 6
Net Metering Capacity Growth, Duke Energy Indiana Service Area 40 Total Capacity of Net Metering Installations By Year, 2002-2017 35 30 25 MW 20 15 10 5 0 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Year 7
Number of Installations Growth in Number of Installations, Monroe County Number of Net Metering Installations By Year, 2007-2016 200 180 160 140 120 100 80 60 40 20 0 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 Year 8
Number of Installations Growth in Number of Installations, Monroe County Number of Net Metering Installations By Year, 2007-2017 500 450 400 350 300 250 200 150 100 50 0 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Year 9
Net Metering Capacity Growth in Monroe County 1.4 Total Capacity of Net Metering Installations By Year, 2007-2016 1.2 1 0.8 MW 0.6 0.4 0.2 0 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 Year 10
Net Metering Capacity Growth in Monroe County 7 Total Capacity of Net Metering Installations By Year, 2007-2017 6 5 4 MW 3 2 1 0 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Year 11
Top Five Counties, Number of Net Metered Installations, 2016 and 2017 County 2016 number of NM installations Monroe 198 Hamilton 43 Vigo 40 Howard 32 Vermillion 27 County 2017 number of NM installations Monroe 451 Hamilton 87 Howard 48 Vigo 43 Bartholomew 32 12
Top Five Counties, Increase in Number of Installations, 2016-2017 County 2016 number of NM installations 2017 number of NM installations increase in number percent increase in number Monroe 198 451 253 127.78% Hamilton 43 87 44 102.33% Jennings 1 21 20 2000.00% Howard 32 48 16 50.00% Bartholomew 18 32 14 77.78% 13
Top Five Counties, Capacity of Net Metered Installations, 2016 and 2017 County 2016 kw Hamilton 1985 Monroe 1414 Howard 1078 Putnam 1049 Henry 924 County 2017 kw Hamilton 8543 Monroe 6333 Howard 2235 Washington 1704 Decatur 1470 14
Top Five Counties, Increase in Capacity of Installations, 2016-2017 County 2016 kw 2017 kw increase in kw percent increase in kw Hamilton 1985.115 8543.255 6558.14 330.37% Monroe 1413.72 6333.227 4919.507 347.98% Washington 12.28 1704.28 1692 13778.50% Decatur 0 1470.229 1470.229 --- Carroll 0 1362 1362 --- 15
Is this rapid growth causing issues on the distribution system? Many 2017 projects are not connected yet, but we model them to study the impacts. Interconnection study looks at impacts from both a single interconnection and cumulative interconnections on a circuit, transformer or substation. A large number of small interconnections may cause voltage and balance issues, or may exceed equipment ratings, on a single circuit or a section of a circuit. Cost burden for mitigation is on the customer whose interconnection was the tipping point from no negative impact to causing an impact. 16
Net Metering Caps How close are we to reaching them? Cap is 1.5 % of a utility s most recent summer peak 40% carve-out for residential customers 15% carve-out for biomass (may be residential or nonresidential) Duke Energy s 2017 summer peak: 5217 MW 1.5% of this is 78.255 MW 40% of the cap is 31.302 MW. Residential connections are at 5.53 MW, so we are not near this cap for residential. 60% of the cap is 46.953 MW. Nonresidential connections are at 28.34 MW. It is likely we will reach the cap within a few years. 17
Non-Net Metered Renewable Projects Privately-owned projects: Four 5 MW solar farms with a total of 20 MW AC presently connected One 4 MW solar farm in project development Nine previously studied projects on hold Inquiries and requests for pre-application data for several sites 18
Non-Net Metered Renewable Projects Duke Energy-owned projects: Crane Solar 17 MW facility presently connected Planned future projects: 1.696 kw solar farm Microgrid with 2 MW PV and 5 MW, 5 MWh battery storage 5 MW, 5 MWh battery storage project 20-25 MW combined heat and power generator project Additional 15-20 MW of PV divided among multiple sites 19
Crane Solar Duke Energy Indiana-owned asset at Naval Support Activity Crane (NSA Crane) 17 MW facility Approx. 76,000 panels on 145 acres 20
Expectations for the Future Continued steady growth in residential solar High growth in nonresidential solar Microgrids Renewables combined with energy storage 21
Growth of Renewable Energy Duke Energy Indiana Service Area Questions? 22
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