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<DocHeader>
<DocTitle>Pre-auction Report for Short Term Transmission Rights</DocTitle>
<DocRevision>1</DocRevision>
<DocConfidentiality>
<DocConfClass>PUB</DocConfClass>
</DocConfidentiality>
<CreatedAt>2026-07-13T12:50:55</CreatedAt>
</DocHeader>
<DocBody>
<ValidityPeriodStart>2026-09-01</ValidityPeriodStart>
<ValidityPeriodEnd>2026-09-30</ValidityPeriodEnd>
<PublishDate>2026-07-13</PublishDate>
<OfferMessage>The actual number of Transmission Rights available for each path in ST_20260901 is equal to the Maximum Transmission Rights offered for this period (Total TR Available (MW)) less all Transmission Rights awarded in previous auctions covering the same time period (Total TR Already Sold (MW)).&lt;br />&lt;br />Further information regarding Forecast Total Transfer Capability, Financial Upper Limit, and TR offered for this auction can be found in the link below:&lt;br />&lt;br />https://www.ieso.ca/-/media/Files/IESO/Document-Library/Renewed-Market-Rules-and-Manuals/market-manuals/market-operations/ieso-mo-transmission-rights-auction.pdf &lt;br />&lt;br />*Refer to Market Manual 0.4.4, Section 2.2.5 on how the IESO determines TRs for short term auctions.</OfferMessage>
<ReportLineItem>
<PathName>MAN-ON</PathName>
<ExpectedATC>75</ExpectedATC>
<FinancialUpperLimit>8</FinancialUpperLimit>
<TotalTRAvailable>8</TotalTRAvailable>
<TotalTRSold>5</TotalTRSold>
<TROffered>3</TROffered>
<OutageIds>1-00254393; 1-00299527</OutageIds>
<Notes>K21W Outage(s); Operational Constraint* Applied; FUL increased 4%</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>MICH-ON</PathName>
<ExpectedATC>450</ExpectedATC>
<FinancialUpperLimit>351</FinancialUpperLimit>
<TotalTRAvailable>351</TotalTRAvailable>
<TotalTRSold>336</TotalTRSold>
<TROffered>15</TROffered>
<OutageIds>1-00317928; 1-00293702</OutageIds>
<Notes>B3N, LAMBTON P1P2, LAMBTON P1_BUS, LAMBTON T2, MISO Outage(s); FUL decreased 4%</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>MIN-ON</PathName>
<ExpectedATC>75</ExpectedATC>
<FinancialUpperLimit>3</FinancialUpperLimit>
<TotalTRAvailable>3</TotalTRAvailable>
<TotalTRSold>0</TotalTRSold>
<TROffered>3</TROffered>
<OutageIds/>
<Notes>Operational Constraint* Applied; FUL increased 4%</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>NY-ON</PathName>
<ExpectedATC>600</ExpectedATC>
<FinancialUpperLimit>191</FinancialUpperLimit>
<TotalTRAvailable>191</TotalTRAvailable>
<TotalTRSold>243</TotalTRSold>
<TROffered>0</TROffered>
<OutageIds>1-00259341</OutageIds>
<Notes>Beck 2 K1K2 Outage(s); FUL decreased 4%</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>ON-MAN</PathName>
<ExpectedATC>75</ExpectedATC>
<FinancialUpperLimit>2</FinancialUpperLimit>
<TotalTRAvailable>2</TotalTRAvailable>
<TotalTRSold>4</TotalTRSold>
<TROffered>0</TROffered>
<OutageIds>1-00254393; 1-00299527</OutageIds>
<Notes>K21W Outage(s); Operational Constraint* Applied; FUL decreased 4%</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>ON-MICH</PathName>
<ExpectedATC>350</ExpectedATC>
<FinancialUpperLimit>1450</FinancialUpperLimit>
<TotalTRAvailable>350</TotalTRAvailable>
<TotalTRSold>364</TotalTRSold>
<TROffered>0</TROffered>
<OutageIds>1-00317928; 1-00293702</OutageIds>
<Notes>B3N, LAMBTON P1P2, LAMBTON P1_BUS, LAMBTON T2, MISO Outage(s); Operational Constraint* Applied</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>ON-MIN</PathName>
<ExpectedATC>75</ExpectedATC>
<FinancialUpperLimit>2</FinancialUpperLimit>
<TotalTRAvailable>2</TotalTRAvailable>
<TotalTRSold>0</TotalTRSold>
<TROffered>2</TROffered>
<OutageIds/>
<Notes>Operational Constraint* Applied; FUL increased 4%</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>ON-NY</PathName>
<ExpectedATC>1150</ExpectedATC>
<FinancialUpperLimit>1650</FinancialUpperLimit>
<TotalTRAvailable>1150</TotalTRAvailable>
<TotalTRSold>424</TotalTRSold>
<TROffered>726</TROffered>
<OutageIds>1-00318104; 1-00308330; 1-00259672; 1-00275118</OutageIds>
<Notes>Beck 2 D2_Bus, Beck 2 K2 Bus Section, L33P, PA27, R27 Outage(s)</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>ON-QD5A</PathName>
<ExpectedATC>0</ExpectedATC>
<FinancialUpperLimit>47</FinancialUpperLimit>
<TotalTRAvailable>0</TotalTRAvailable>
<TotalTRSold>48</TotalTRSold>
<TROffered>0</TROffered>
<OutageIds>1-00308402</OutageIds>
<Notes>D5A Outage(s); FUL decreased 4%</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>ON-QH4Z</PathName>
<ExpectedATC>95</ExpectedATC>
<FinancialUpperLimit>95</FinancialUpperLimit>
<TotalTRAvailable>95</TotalTRAvailable>
<TotalTRSold>24</TotalTRSold>
<TROffered>71</TROffered>
<OutageIds/>
<Notes/>
</ReportLineItem>
<ReportLineItem>
<PathName>ON-QOUTA</PathName>
<ExpectedATC>615</ExpectedATC>
<FinancialUpperLimit>1230</FinancialUpperLimit>
<TotalTRAvailable>615</TotalTRAvailable>
<TotalTRSold>308</TotalTRSold>
<TROffered>307</TROffered>
<OutageIds/>
<Notes>Operational Constraint* Applied</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>QBEAU-ON</PathName>
<ExpectedATC>190</ExpectedATC>
<FinancialUpperLimit>9</FinancialUpperLimit>
<TotalTRAvailable>9</TotalTRAvailable>
<TotalTRSold>14</TotalTRSold>
<TROffered>0</TROffered>
<OutageIds>1-00288804; 1-00290734</OutageIds>
<Notes>L33P, L34P Outage(s); FUL decreased 4%</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>QD4Z-ON</PathName>
<ExpectedATC>40</ExpectedATC>
<FinancialUpperLimit>1</FinancialUpperLimit>
<TotalTRAvailable>1</TotalTRAvailable>
<TotalTRSold>0</TotalTRSold>
<TROffered>1</TROffered>
<OutageIds>1-00294340; 1-00302176</OutageIds>
<Notes>A9K, H24S Outage(s); FUL decreased 4%</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>QD5A-ON</PathName>
<ExpectedATC>0</ExpectedATC>
<FinancialUpperLimit>4</FinancialUpperLimit>
<TotalTRAvailable>0</TotalTRAvailable>
<TotalTRSold>7</TotalTRSold>
<TROffered>0</TROffered>
<OutageIds>1-00308402</OutageIds>
<Notes>D5A Outage(s); FUL decreased 4%</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>QOUTA-ON</PathName>
<ExpectedATC>605</ExpectedATC>
<FinancialUpperLimit>1230</FinancialUpperLimit>
<TotalTRAvailable>605</TotalTRAvailable>
<TotalTRSold>308</TotalTRSold>
<TROffered>297</TROffered>
<OutageIds>1-00294375</OutageIds>
<Notes>HAWTHORNE TS T6 Outage(s)</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>QP33C-ON</PathName>
<ExpectedATC>290</ExpectedATC>
<FinancialUpperLimit>290</FinancialUpperLimit>
<TotalTRAvailable>290</TotalTRAvailable>
<TotalTRSold>72</TotalTRSold>
<TROffered>218</TROffered>
<OutageIds/>
<Notes/>
</ReportLineItem>
<ReportLineItem>
<PathName>QX2Y-ON</PathName>
<ExpectedATC>0</ExpectedATC>
<FinancialUpperLimit>1</FinancialUpperLimit>
<TotalTRAvailable>0</TotalTRAvailable>
<TotalTRSold>0</TotalTRSold>
<TROffered>0</TROffered>
<OutageIds>1-00298101</OutageIds>
<Notes>X2Y Outage(s); FUL decreased 4%</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>MANSK-ON</PathName>
<ExpectedATC>0</ExpectedATC>
<FinancialUpperLimit>0</FinancialUpperLimit>
<TotalTRAvailable>0</TotalTRAvailable>
<TotalTRSold>0</TotalTRSold>
<TROffered>0</TROffered>
<OutageIds/>
<Notes>Financial Upper Limit = 0 MW</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>ON-MANSK</PathName>
<ExpectedATC>0</ExpectedATC>
<FinancialUpperLimit>0</FinancialUpperLimit>
<TotalTRAvailable>0</TotalTRAvailable>
<TotalTRSold>0</TotalTRSold>
<TROffered>0</TROffered>
<OutageIds/>
<Notes>Financial Upper Limit = 0 MW</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>ON-QBEAU</PathName>
<ExpectedATC>0</ExpectedATC>
<FinancialUpperLimit>0</FinancialUpperLimit>
<TotalTRAvailable>0</TotalTRAvailable>
<TotalTRSold>0</TotalTRSold>
<TROffered>0</TROffered>
<OutageIds/>
<Notes>Financial Upper Limit = 0 MW</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>ON-QD4Z</PathName>
<ExpectedATC>0</ExpectedATC>
<FinancialUpperLimit>0</FinancialUpperLimit>
<TotalTRAvailable>0</TotalTRAvailable>
<TotalTRSold>0</TotalTRSold>
<TROffered>0</TROffered>
<OutageIds/>
<Notes>Financial Upper Limit = 0 MW</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>ON-QH9A</PathName>
<ExpectedATC>0</ExpectedATC>
<FinancialUpperLimit>0</FinancialUpperLimit>
<TotalTRAvailable>0</TotalTRAvailable>
<TotalTRSold>0</TotalTRSold>
<TROffered>0</TROffered>
<OutageIds/>
<Notes>Financial Upper Limit = 0 MW</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>ON-QP33C</PathName>
<ExpectedATC>0</ExpectedATC>
<FinancialUpperLimit>0</FinancialUpperLimit>
<TotalTRAvailable>0</TotalTRAvailable>
<TotalTRSold>0</TotalTRSold>
<TROffered>0</TROffered>
<OutageIds/>
<Notes>Financial Upper Limit = 0 MW</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>ON-QQ4C</PathName>
<ExpectedATC>0</ExpectedATC>
<FinancialUpperLimit>0</FinancialUpperLimit>
<TotalTRAvailable>0</TotalTRAvailable>
<TotalTRSold>0</TotalTRSold>
<TROffered>0</TROffered>
<OutageIds/>
<Notes>Financial Upper Limit = 0 MW</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>ON-QX2Y</PathName>
<ExpectedATC>0</ExpectedATC>
<FinancialUpperLimit>0</FinancialUpperLimit>
<TotalTRAvailable>0</TotalTRAvailable>
<TotalTRSold>0</TotalTRSold>
<TROffered>0</TROffered>
<OutageIds/>
<Notes>Financial Upper Limit = 0 MW</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>QH4Z-ON</PathName>
<ExpectedATC>0</ExpectedATC>
<FinancialUpperLimit>0</FinancialUpperLimit>
<TotalTRAvailable>0</TotalTRAvailable>
<TotalTRSold>0</TotalTRSold>
<TROffered>0</TROffered>
<OutageIds/>
<Notes>Financial Upper Limit = 0 MW</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>QH9A-ON</PathName>
<ExpectedATC>0</ExpectedATC>
<FinancialUpperLimit>0</FinancialUpperLimit>
<TotalTRAvailable>0</TotalTRAvailable>
<TotalTRSold>0</TotalTRSold>
<TROffered>0</TROffered>
<OutageIds/>
<Notes>Financial Upper Limit = 0 MW</Notes>
</ReportLineItem>
<ReportLineItem>
<PathName>QQ4C-ON</PathName>
<ExpectedATC>0</ExpectedATC>
<FinancialUpperLimit>0</FinancialUpperLimit>
<TotalTRAvailable>0</TotalTRAvailable>
<TotalTRSold>0</TotalTRSold>
<TROffered>0</TROffered>
<OutageIds/>
<Notes>Financial Upper Limit = 0 MW</Notes>
</ReportLineItem>
<Rounds>
<RoundMessage>The window for accepting bids in this auction will be from: </RoundMessage>
<Round1>Round 1 2026/08/12 09:00:00 to 2026/08/13 17:00:00</Round1>
</Rounds>
</DocBody>
</Document>
