DUKE ENERGY OHIO INC.'S CBP SSO AUCTIONS
Auction Results
Summary of Results for February 27, 2018 CBP Auction

Number of Registered Bidders 9
Number of Winning Bidders 5
Number of Rounds in the Auction 19
Delivery Period
June 1, 2018 to
May 31, 2019
June 1, 2018 to
May 31, 2020
June 1, 2018 to
May 31, 2021
Tranche Target 16 17 17
Number of Tranches Procured 16 17 17
Range of Starting Price ($/MWh) $70.00 - $90.00 $70.00 - $90.00 $70.00 - $90.00
Tranche-weighted average price of winning bids ($/MWh) $52.87 $49.48 $49.71

Summary of Results for February 20, 2018 CBP Auction

Number of Registered Bidders 9
Number of Winning Bidders 5
Number of Rounds in the Auction 21
Delivery Period
June 1, 2018 to
May 31, 2019
June 1, 2018 to
May 31, 2020
June 1, 2018 to
May 31, 2021
Tranche Target 16 17 17
Number of Tranches Procured 16 17 17
Range of Starting Price ($/MWh) $70.00 - $90.00 $70.00 - $90.00 $70.00 - $90.00
Tranche-weighted average price of winning bids ($/MWh) $52.06 $49.27 $48.75

Summary of Results for March 2017 CBP Auction

Number of Registered Bidders 12
Number of Winning Bidders 6
Number of Rounds in the Auction 17
Delivery Period
June 1, 2017 to
May 31, 2018
Tranche Target 17
Number of Tranches Procured 17
Range of Starting Price ($/MWh) $80.00 - $100.00
Tranche-weighted average price of winning bids ($/MWh) $50.71

Summary of Results for November 2016 CBP Auction

Number of Registered Bidders 12
Number of Winning Bidders 4
Number of Rounds in the Auction 14
Delivery Period
June 1, 2017 to
May 31, 2018
Tranche Target 17
Number of Tranches Procured 17
Range of Starting Price ($/MWh) $80.00 - $100.00
Tranche-weighted average price of winning bids ($/MWh) $50.20

Summary of Results for March 2016 CBP Auction

Number of Registered Bidders 13
Number of Winning Bidders 5
Number of Rounds in the Auction 20
Delivery Period
June 1, 2016 to
May 31, 2018
Tranche Target 17
Number of Tranches Procured 17
Range of Starting Price ($/MWh) $80.00 - $110.00
Tranche-weighted average price of winning bids ($/MWh) $48.34

Summary of Results for November 2015 CBP Auction

Number of Registered Bidders 12
Number of Winning Bidders 3
Number of Rounds in the Auction 15
Delivery Period
June 1, 2016 to
May 31, 2018
Tranche Target 17
Number of Tranches Procured 17
Range of Starting Price ($/MWh) $90.00 - $120.00
Tranche-weighted average price of winning bids ($/MWh) $49.86

Summary of Results for May 2015 CBP Auction

Number of Registered Bidders 12
Number of Winning Bidders 8
Number of Rounds in the Auction 20
Delivery Period
June 1, 2015 to
May 31, 2016
June 1, 2015 to
May 31, 2017
June 1, 2015 to
May 31, 2018
Tranche Target 34 34 32
Number of Tranches Procured 34 34 32
Range of Starting Price ($/MWh) $90.00 - $120.00 $90.00 - $120.00 $90.00 - $120.00
Clearing Price ($/MWh) $58.79 $57.60 $59.17

Summary of Results for November 2013 CBP Auction

Number of Registered Bidders 11
Number of Winning Bidders 5
Number of Rounds in the Auction 16
Delivery Period
June 1, 2014 to
May 31, 2015
Tranche Target 16
Number of Tranches Procured 16
Range of Starting Price ($/MWh) $65.00 - $85.00
Tranche-weighted average price of winning bids ($/MWh) $50.11

Summary of Results for May 2013 CBP Auction

Number of Registered Bidders 10
Number of Winning Bidders 4
Number of Rounds in the Auction 16
Delivery Period
June 1, 2014 to
May 31, 2015
Tranche Target 17
Number of Tranches Procured 17
Range of Starting Price ($/MWh) $65.00 - $85.00
Tranche-weighted average price of winning bids ($/MWh) $54.16

Summary of Results for November 2012 CBP Auction

Number of Registered Bidders 12
Number of Winning Bidders 4
Number of Rounds in the Auction 16
Delivery Period
June 1, 2013 to
May 31, 2015
Tranche Target 16
Number of Tranches Procured 16
Range of Starting Price ($/MWh) $65.00 - $85.00
Tranche-weighted average price of winning bids ($/MWh) $50.56

Summary of Results for May 2012 CBP Auction

Number of Registered Bidders 11
Number of Winning Bidders 3
Number of Rounds in the Auction 12
Delivery Period
June 1, 2013 to
May 31, 2015
Tranche Target 17
Number of Tranches Procured 17
Range of Starting Price ($/MWh) $65.00 - $85.00
Tranche-weighted average price of winning bids ($/MWh) $52.14

Summary of Results for December 2011 CBP Auction

Number of Registered Bidders 13
Number of Winning Bidders 7
Number of Rounds in the Auction 14
Delivery Period
January 1, 2012 to
May 31, 2013
January 1, 2012 to
May 31, 2014
January 1, 2012 to
May 31, 2015
Tranche Target 33 33 34
Number of Tranches Procured 33 33 34
Range of Starting Price ($/MWh) $70.00 - $90.00 $70.00 - $90.00 $70.00 - $90.00
Clearing Price ($/MWh) $49.72 $51.10 $57.08
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