1. Windsor-Essex Electrical Service Needs and Solutions
June 2008
Windsor-Essex Electrical Service
Needs and Solutions

2. Windsor-Essex Area MALDEN The Windsor-Essex study area as shown
Nature of the problem … separated into West Windsor which includes the City of Windsor, and East Essex … as shown
Total load for W-E is about 1100 MW; Peak load in West Essex is about 900 MW; East Essex about 200 MW; growth in former is static while for the latter is more robust (about 1.6%)
Transmission system: 230 kV lines from Chatham supply the area; 2 main stations are Keith and Lauzon; most load supplied off the 115 kV system (local supply network)
East Essex is supplied totally from 115 kV lines from Lauzon: power is stepped down at Kingsville, Belle River and Tilbury to be distributed locally
Large amount of local generation, most in City of Windsor (about 870 MW - BB-580, WW-128, EW-84, TA- 78); Great Northern Tri-Gen (12 MW) connected to Kingsville TS; a lot of wind and CHP potential in the area
Windsor-Essex Area

3. Needs in Windsor-Essex
Inadequate transformer and line capacity to supply growing load in East Essex
Reliability of supply to the entire Windsor-Essex area is below standard for a load of its size
Inadequate transmission capacity for delivering generation from the west part of Windsor to the transmission grid (i.e. congestion)
(about 1000 MW; top 5 in Ontario)
There are three needs that we identified for W-E; they are  [SLIDE]
(existing system has been stretched to meet growing power needs in East Essex)
All three needs are present now and will get worse with load growth {EMPHASIZE THE NEED IS NOW}
Load rejection schemes are in place now to contain system failures should critical outages occur in the area
Windsor-Essex Area

4. Integrated solution consisting of: Targeted conservation
Proposed Solution
Integrated solution consisting of:
Targeted conservation
for reducing the demand in the area
Factoring in local generation if and when it occurs resulting from the various OPA resource procurement programs
Transmission reinforcements
Two options being considered
Windsor-Essex Area

5. Transmission & Distribution
Implementation
Transmission & Distribution
Conservation
Generation
Programs & procurements by OPA, supported by LDCs and others
Programs and Procurements by OPA
by Hydro One
Windsor-Essex Area

6. Conservation Solution in East Essex
Target of 15 MW of conservation by 2010
“calculated” based upon provincial target
also have a target for West Essex
East Essex Load
Load net of Conservation *
“Calculated” based upon provincial target
Conservation includes the following:
Peak control/reduction
Customer Based Generation
Renewable
Clean Energy
Co-gen
Natural Conservation:
Initiatives undertake by the communities
By-law changes by municipalities
Consumer response to local education/information initiatives
Value added services
Market based programs
Residential
Commercial
Industrial
Agricultural
Next Steps
Work with LDCs to develop business plan to achieve targets and define gaps
Establish necessary funding and implement various conservation activities
Undertake research, monitoring of conservation activities to close gaps
*Note: 27 MW of load was transferred to the new Belle River Station in 2006
Windsor-Essex Area

7. Local Generation Opportunities
There are or will be a number of provincial-wide procurement initiatives for system resources that could be of interest to this area:
Renewable Energy Supply (RES)
Renewable Energy Standard Offer Program (RESOP)
Clean Energy Standard Offer Program (CESOP)
Combined Heat & Power (CHP)
OPA will incorporate the outcome of these procurements as we move forward with the plan
However, the OPA does not expect that generation developments in the area will be sufficient to address the needs identified
Will need to upgrade and reinforce the transmission system to meet all the area needs
OPA is responsible for facilitating investment in new generation through procurement initiatives
OPA is a creditworthy counterparty that provides long-term pricing assurance
We are not responsible for:
Siting new generation facilities, other than specifying electrical interconnection
Mandating environmental performance
(as generators have to comply with existing legislation and regulations)
Directing operation of the generation facility
(because generators are incented to sell into the competitive market)
When need is identified, OPA launches targeted procurement for generation facility
Renewable Energy Supply (RES)
Ministerial Directive received August 27, 2007 to procure up to 2000 MW
Projects > 10 MW
2015 in-service date
Consultation with First Nations and Metis
RES III: first phase for up to 500 MW (2008)
RESOP/CESOP
Continue administering RESOP with some program review planned
RESOP is already open and ongoing
Reviewing CESOP to develop sound program rules
CESOP launch date: 2nd quarter 2008
Combined Heat and Power (CHP)
CHP II: second phase of procurement; similar process/rules to previous
586 MW remain from June 2005 Ministerial Directive (for up to 1000 MW)
All of which may not be filled by CHP II RFP
RFEI process held to determine scope of RFP process
Process will focus on projects with capacities > 10MW
2013 in-service date; RFP is province wide and is not targeting particular areas
Windsor-Essex Area

8. Transmission & Distribution Alternative #1
Cost: ~$120 Million
Shared components: upgrading Keith Transformer Station in the Windsor area and installing more efficient, higher capacity conductors on the 115 kV line connecting Keith TS and Essex TS, in the City of Windsor.
Alternative #1: This involves upgrading the 115 kV transmission line between Kingsville Junction (where four 230kV lines cross 115kV lines going south from Belle River to Kingsville). and Kingsville TS and installing autotransformers at Kingsville Junction.
Quoted cost includes Keith Auto replacement (part of Sustainment budget)
Windsor-Essex Area

9. Transmission & Distribution Alternative #2
Cost: ~$100 -$ Million
Shared components: upgrading Keith Transformer Station in the Windsor area and (potentially) installing more efficient, higher capacity conductors on the 115 kV line connecting Keith TS and Essex TS, in the City of Windsor.
Alternative #2: This involves building a new double circuit 230 kV line from Sandwich Junction to Lauzon TS, and building a new TS and its 230 kV supply line in the
Leamington area.
Quoted cost includes Keith Auto replacement (part of Sustainment budget)
Windsor-Essex Area

10. Alternative Comparison
The OPA applies six planning criteria when comparing the two alternatives for reinforcing Windsor-Essex:
Reliability (both meet criteria)
Feasibility (both are feasible)
Flexibility (similar)
Cost (Alt #2 is $9M to $20M lower in cost)
Societal acceptance (Alt #2 preferred based on feedback from public consultation)
Environmental assessment (similar based on Hydro One’s initial assessment)
Based on the above criteria, the preferred alternative is Alternative #2
Windsor-Essex Area

11. Project Status
The Integrated Power System Plan (IPSP), submitted to the OEB in August 2007, indicated Alternative #1 was the preferred solution because:
preliminary estimates indicated it would cost $17 M less than Alt #2
it requires less land, which should result in less disruption to communities
However, because discussions with stakeholders, officials and affected communities had not taken place and final design and cost estimates were not yet available, approval of this project is proceeding separately from the IPSP
The preferred transmission option for the integrated plan is based on the latest information and results of the stakeholder consultation that was recently carried out
Windsor-Essex Area

12. Post IPSP Information Updates
Since the IPSP filing in August 2007:
Community consultation has been initiated
Costs and facility requirements have been updated
Demand forecasts have been updated
Distribution requirements have been assessed in more detail and incorporated
Load restoration requirements and transfer capabilities of the existing system and alternatives have been updated based on recent information
Environmental Assessment process is underway
Implementation of Conservation and DG continue to be monitored and updated
Community Consultation:
There was a majority of support for Alternative #2 from stakeholders attending the first round of PICs in April
Of the 26 comment forms received at the PICs, 18 people expressed their preference for Alternative #2 and 8 people had a preference for Alternative #1
Distribution Considerations:
The rating of Kingsville Station was revised due to new technical information from Hydro One; station capacity is lower (?? To ??)
There is a need for distribution feeder capacity and positions in East Essex as early as 2011; no expansion capability at Kingsville TS; new station required in the area
Load Forecast:
Load forecast revised by LDCs based on 2007 peak and latest local information; little change
Conservation re-allocated based on new load forecast to reflect revised TS loading on an annual basis; however, total conservation remains the same
Facilities and Costs:
Costs for facilities revised based on site visits and engineering design
Review facilities required in each alternative based on the latest information
Windsor-Essex Area