<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="https://reports-public.ieso.ca/docrefs/stylesheet/DAHourlyOntarioZonalPrice_HTML_t1-1.xsl" ?>
<Document docID="DAHourlyOntarioZonalPrice" xmlns="http://www.ieso.ca/schema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.ieso.ca/schema https://reports-public.ieso.ca/docrefs/schema/DAHourlyOntarioZonalPrice_r1.xsd">
<DocHeader>
<DocTitle>Day Ahead Hourly Ontario Zonal Energy Price Report</DocTitle>
<DocRevision>1</DocRevision>
<DocConfidentiality>
<DocConfClass>PUB</DocConfClass>
</DocConfidentiality>
<CreatedAt>2026-05-17T12:31:12</CreatedAt>
</DocHeader>
<DocBody>
<DeliveryDate>2026-05-18</DeliveryDate>
<HourlyPriceComponents>
<PricingHour>1</PricingHour>
<ZonalPrice>13.29</ZonalPrice>
<LossPriceCapped>0.01</LossPriceCapped>
<CongestionPriceCapped>-0.64</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>2</PricingHour>
<ZonalPrice>9.17</ZonalPrice>
<LossPriceCapped>0.01</LossPriceCapped>
<CongestionPriceCapped>-0.45</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>3</PricingHour>
<ZonalPrice>11.7</ZonalPrice>
<LossPriceCapped>0.04</LossPriceCapped>
<CongestionPriceCapped>-0.57</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>4</PricingHour>
<ZonalPrice>10.02</ZonalPrice>
<LossPriceCapped>0.04</LossPriceCapped>
<CongestionPriceCapped>-0.48</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>5</PricingHour>
<ZonalPrice>5.95</ZonalPrice>
<LossPriceCapped>0.03</LossPriceCapped>
<CongestionPriceCapped>-0.3</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>6</PricingHour>
<ZonalPrice>6.3</ZonalPrice>
<LossPriceCapped>0.02</LossPriceCapped>
<CongestionPriceCapped>-0.34</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>7</PricingHour>
<ZonalPrice>13.34</ZonalPrice>
<LossPriceCapped>0.02</LossPriceCapped>
<CongestionPriceCapped>-0.66</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>8</PricingHour>
<ZonalPrice>13.39</ZonalPrice>
<LossPriceCapped>-0.03</LossPriceCapped>
<CongestionPriceCapped>-0.61</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>9</PricingHour>
<ZonalPrice>13.54</ZonalPrice>
<LossPriceCapped>-0.05</LossPriceCapped>
<CongestionPriceCapped>-0.64</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>10</PricingHour>
<ZonalPrice>13.86</ZonalPrice>
<LossPriceCapped>-0.04</LossPriceCapped>
<CongestionPriceCapped>-0.59</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>11</PricingHour>
<ZonalPrice>17.81</ZonalPrice>
<LossPriceCapped>-0.05</LossPriceCapped>
<CongestionPriceCapped>-0.72</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>12</PricingHour>
<ZonalPrice>18.3</ZonalPrice>
<LossPriceCapped>-0.08</LossPriceCapped>
<CongestionPriceCapped>-0.7</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>13</PricingHour>
<ZonalPrice>29.98</ZonalPrice>
<LossPriceCapped>-0.13</LossPriceCapped>
<CongestionPriceCapped>-0.91</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>14</PricingHour>
<ZonalPrice>30.37</ZonalPrice>
<LossPriceCapped>-0.17</LossPriceCapped>
<CongestionPriceCapped>-0.89</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>15</PricingHour>
<ZonalPrice>30.3</ZonalPrice>
<LossPriceCapped>-0.22</LossPriceCapped>
<CongestionPriceCapped>-0.92</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>16</PricingHour>
<ZonalPrice>34.23</ZonalPrice>
<LossPriceCapped>-0.22</LossPriceCapped>
<CongestionPriceCapped>-0.9</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>17</PricingHour>
<ZonalPrice>64.97</ZonalPrice>
<LossPriceCapped>-0.35</LossPriceCapped>
<CongestionPriceCapped>-1.78</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>18</PricingHour>
<ZonalPrice>75.9</ZonalPrice>
<LossPriceCapped>-0.48</LossPriceCapped>
<CongestionPriceCapped>-2.09</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>19</PricingHour>
<ZonalPrice>84.74</ZonalPrice>
<LossPriceCapped>-0.6</LossPriceCapped>
<CongestionPriceCapped>-2.53</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>20</PricingHour>
<ZonalPrice>76.39</ZonalPrice>
<LossPriceCapped>-0.46</LossPriceCapped>
<CongestionPriceCapped>-2.45</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>21</PricingHour>
<ZonalPrice>68.23</ZonalPrice>
<LossPriceCapped>-0.31</LossPriceCapped>
<CongestionPriceCapped>-2.02</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>22</PricingHour>
<ZonalPrice>36.52</ZonalPrice>
<LossPriceCapped>-0.16</LossPriceCapped>
<CongestionPriceCapped>-1.29</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>23</PricingHour>
<ZonalPrice>30.97</ZonalPrice>
<LossPriceCapped>-0.09</LossPriceCapped>
<CongestionPriceCapped>-1.09</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
<HourlyPriceComponents>
<PricingHour>24</PricingHour>
<ZonalPrice>24.12</ZonalPrice>
<LossPriceCapped>-0.07</LossPriceCapped>
<CongestionPriceCapped>-0.88</CongestionPriceCapped>
<Flag>DSO-RD</Flag>
</HourlyPriceComponents>
</DocBody>
</Document>
