Hydro One Limited · TSX:H

Hydro One — Technical Presentation (April 2010)

26 slides from Hydro One's technical presentation, Apr 27, 2010

  1. Slide 1: Hydro One FIT Process for LDC’s

    Hydro One FIT Process for LDC’s April 27, 2010 1

  2. Slide 2: Agenda for Today

    Agenda for Today 1. Overview of LDC FIT process for Capacity Allocation Exempt and Mainstream FIT Projects – CIA process Overview – Threshold CIA Concept – Capacity & Project Tracking 2. Q & A Session 2

  3. Slide 3: Committed to Connecting Renewable

    Committed to Connecting Renewable • We know generators rely on us to manage our obligations in a manner that brings certainty to the timing of their projects. • We understand that what we do and when we do it can have financial implications for generators. We will continue to work with generators to

  4. Slide 4: Renewable Connections: Status 2010

    Renewable Connections: Status 2010 • Hydro One has connected 112 generators to its distribution system totaling 377 MW and has more than 500 MW of RESOP contracted generation which the Company expects to connect in 2010. • The Company has connected more than 5,500 MW of new generation to the transmi

  5. Slide 5: LDC CIA Application’s

    LDC CIA Application’s • LDC submits CIA application on behalf of the proponent for any projects > 10 kW • Applications are submitted by the LDC to Hydro One’s Business Customer Centre (BCC) • HONI CIA completed in conjunction with the LDC’s CIA • Final CIA and documents for next steps returned to th

  6. Slide 6: LDC CIA Application’s - Three Categories

    LDC CIA Application’s - Three Categories • LDC owned feeders (Connected to HONI TS) • LDC Embedded feeders (Connected to HONI) feeder • Upstream LDC (HONI embedded in an LDC) feeder 6

  7. Slide 7: LDC Owned Feeder CIA

    LDC Owned Feeder CIA • Requires only a TS review from Hydro One because the feeder is owned by the LDC • A streamlined process using Threshold CIA may apply • 60 day turn around 7

  8. Slide 8: LDC Embedded Feeder CIA

    LDC Embedded Feeder CIA • Requires a TS and feeder review from Hydro One because the feeder is embedded in Hydro One Dx • Streamlined CIA process does not apply • 120 days to process the CIA as more than one LDC is involved 8

  9. Slide 9: Upstream LDC CIA

    Upstream LDC CIA • Hydro One requires a CIA from the LDC where we are embedded in an LDC feeder. • Hydro One applies to the LDC for a CIA and signs a connection agreement on behalf of the generator connecting to Hydro One’s feeder. • 120 days to process the CIA as more than one LDC is involved 9

  10. Slide 10: Hydro One Generation Connections

    Hydro One Generation Connections 10

  11. Slide 11: BCC Links

    BCC Links ‘Windows Internet Exp! BO © Le teehee tr coe com ooreratrsf TmErorIT/PagestPT aspx Fic 7 @ snactt a ei! ve te | ern jo] Se a lof each party Connection Impact Assessment (CIA) ACIAIWa Tord detalted ssueesrient ofa projects impadi to tie ria: The results inciude a technical report eutining p

  12. Slide 12: CIA Form B

    CIA Form B FormB Connection Impact Assessment (CIA) Application Distribution System This Application Form is for Generators applying for Connection Impact Assessment (“CIA") and for Generators with a project size >10 kW. This Application Form is required for: Hast Generators appiying for Connection

  13. Slide 13: CIA Report

    CIA Report hyd ro CONNECTION IMPACT ASSESSMENT MW Generation Project ID # [###] NOTE: The Connection Impact Assessment (CIA) for project was performed under the assumptions and key project and connection data contained in this CIA report. This CIA is valid for a period of no more than 6 months from

  14. Slide 14: Streamlined Process – Threshold CIA

    Streamlined Process – Threshold CIA • The Threshold CIA is – A “bundled” allocation of capacity up to 1MW where the list of projects is already known – An allocation of capacity for up to 1MW when the list of projects is not known • The Threshold CIA may only include: – Inverter based generation onl

  15. Slide 15: Threshold CIA - Final Product

    Threshold CIA - Final Product • Body of report will contain connection requirements, Appendices will refer to individual projects when identified by an application in advance • CCA maybe needed for every DG projects included in the threshold CIA. • On a periodic basis HONI will ask for a list of DG

  16. Slide 16: Connecting Distributed Generation

    Connecting Distributed Generation • Connecting generators to distribution is a new experience: – Generation connected to long feeders – Short circuit considerations – Transformer station capacity • Comparison with other jurisdictions – This is a learning experience for all 16

  17. Slide 17: Challenges with Station Capacity

    Challenges with Station Capacity • Capacity is fluid, not static – System load is continually changing, new generation outside of FIT • Newly connected renewable generator sites are uncovering unforeseen impacts to the grid system – Long Feeder, Short Circuit Considerations, Transformer Limitations

  18. Slide 18: Station Capacity Limits Definition

    Station Capacity Limits Definition • Consistent with the Distribution System Code, the following technical capacity limit has been determined by Hydro One: − Reverse power flow is not to exceed 60% of station capacity to protect the system in a situation where 1 transformer is out of service • Short

  19. Slide 19: HONI Experience with Station Capacity

    HONI Experience with Station Capacity In preparation for FIT, Hydro One reviewed station capacity considering actual experience and new information. Highlights: • Some dual secondary winding transformers do not allow for reverse power flow conditions • There was a reduction in minimum system load •

  20. Slide 20: Short Circuit

    Short Circuit • Short circuit limitations were previously identified after a Connection Impact Assessment (CIA) was completed • Some short circuit limitations are presently identified on Hydro One’s List of Allocated Capacity and on OPA’s Connection Availability Table • Short circuit information was

  21. Slide 21: Thermal Capacity Conclusions

    Thermal Capacity Conclusions • The station capacity shown on Hydro One’s List of Allocated Capacity and OPA’s Connection Availability Table reflects: − Dual secondary winding transformer capacity − Reduction in system load − More detailed analysis 21

  22. Slide 22: List of Allocated Capacity

    List of Allocated Capacity • Station capacity on Hydro One’s List of Allocated Capacity was adjusted in preparation for FIT • The Connection Availability Table posted by the OPA at FIT launch includes station capacity values • OPA’s values account for RESOP contracts awarded at the time of FIT launc

  23. Slide 23: List of Allocated Capacity (Old)

    List of Allocated Capacity (Old) 23

  24. Slide 24: AGIMAK DS Tota Ft. F2 ET) SS

    AGIMAK DS Tota Ft. F2 ET) 10 72 SS AGINCOURT TS. ie O.MeN2 EZ 144 0s 124 AGINCOURT TS a a 003,057 EZ 132 108 2s AGINCOURT TS ron 110, 12,M 3M: mH 27s a4 ‘Sum of Buses ° ALBION TS [Tots INA. 125 358 ‘Sum of Buzes ° ALBION TS sa A 12s EX 35 13 ALBION TS [or i 125 143 30 412 ALEXANDER DS = leae3 zs 45

  25. Slide 25: SAMPLE - LIST OF APPLICATIONS

    SAMPLE - LIST OF APPLICATIONS Project Number Station Dx Station Dx Feeder CHA nates Proposed Total Capacity (kW) 752 JALLANBURG TS KM3 1,056 2179 [ALLISTON TS Ms 10,000 1830 ALLISTON TS M6 10,000 63 ALMONTE TS M2s $,000 1076 JARMITAGE TS ma3 1,500 1845 ARMITAGE TS M32 10,000 1846 JARMITAGE TS M32 10

  26. Slide 26: Thank You

    Thank You Please stay in touch with your account executive and monitor www.HydroOne.com for future developments 26

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