1. Single Buyer and Ontarios Electricity Supply Structure presented by Jan Carr, CEO, Ontario Power Authority to the workshop on Reforming Electricity Industry in Saudi Arabia Riyadh, November 6, 2006

2. 2 Ontario at a Glance population 12 million –40% of Canada GDP US$500billion/year –40% of Canada main industries –mining and forest products –automotive parts and assembly –financial services

3. 3 Ontario Electricity System 31,000 MW 155 TWh

4. 4 Electricity Industry Structure 1905 – 2002 –provincial government owned monopoly utility generation, transmission and rural distribution –300+ municipally owned distribution utilities 2002 –restructured to introduce competition –provincial utility split into separate companies generation transmission/rural distribution system operator –all municipal utilities and provincial companies (except system operator) converted to commercial corporations with share capital –transmission and distribution prices regulated (by Ontario Energy Board – a quasi-judicial tribunal) –prices for electricity established in competitive market

5. 5 Electricity Industry Structure – Result market effectively closed 6 months after it was opened through imposition of a retail price freeze –government reaction to public unrest due to volatile and opaque pricing –interests and needs of small retail consumers were ignored in restructuring resulting in them being served directly from the wholesale spot market 2004 –passage of additional restructuring legislation removed price freeze and substituted a price smoothing mechanism for small retail consumers established Ontario Power Authority

6. 6 OPA Mandate long range planning –prepare and keep updated a 20-year plan for generation and transmission ensure adequate investment in generation –procure generation through contracts (the single buyer aspect) conservation –procure conservation and demand management –promote a culture of conservation sector evolution –facilitate changes that reduce the dependence on procurement contracts (supply and conservation) – i.e. enhance competition

7. 7 OPA Procurement Processes OPA procures generation, conservation and demand management –following discussion focuses only on generation procurement procure only if investment activity is not forthcoming due to action of market forces –buyer of last resort, not first resort

8. 8 OPA Procurement Processes 3 broad approaches: –Request for Proposals (RFP) to date has covered gas-fired generation and renewables –Standard Offer Contracts (SOC) starting November 2006 will initially cover only generation from small renewables projects (less than 10MW) –sole source negotiations time urgency or unique situations only

9. 9 RFP Procurement – First Process 3 RFPs within 1 year –2 for renewables –1 for gas-fired generation rationale - supply/demand imbalance and local transmission constraints –locational credits for projects in constrained areas evaluation and selection of bids based on: –a targeted maximum capacity –cost (gas plants) bid to a financial contract based on deemed dispatch operating cycle total cost based on proxy for capacity payment, and energy payment project Heat Rate was major driver for energy cost evaluation based on 2 years of historical gas and electricity prices –cost (renewables) $/MWh for production based on assumed capacity factor –price discontinuity concept compared ratio between average bid and next highest bid projects priced too far beyond average could be rejected

10. 10 First RFP Process – Lessons Learned locational credits insufficient to award projects in most critical locations –awarded locations resulted from minimizing other development costs – especially natural gas costs proponents had put limited effort into obtaining land and environmental approvals –resulted in significant construction delays lack of prequalification process prevented avoiding: –projects in non-preferred locations –projects with high probabilities of delays consumers benefited from low hanging fruit, for example: –grey-market generation equipment –locations with simplest gas supply

11. 11 RFP Process – Next Round similar process with several refinements: –specified transmission facilities to which plant must connect in effect, prescribed the general location of acceptable plants –preliminary prequalification round before allowing submission of priced bids experience of developer community relations management plan and actions to-date –reduce risk of delays from approvals results very satisfactory but very recent so not fully tested

12. 12 RFP Process - Future procurements to-date have been addressing chronic backlog of new generating capacity needs future procurements will be less urgent and will be based on a long-term power system development plan now being prepared therefore, anticipate future procurements will: –give 12-36 months notice of intent to issue RFP –give priority to sites that are more advanced in local and environmental approvals –be increasingly specific on required characteristics base load, intermediate, peaking, high efficiency etc. parallel electricity sector development efforts by OPA will also reduce level of support and general attractiveness of contract provisions, for example: –increased market-based options for hedging fuel and electricity development of forward electricity markets –reduced contract term – perhaps in the front-end rather than back-end –incentive to develop merchant component of plant in conjunction with contracted capacity

13. 13 Standard Offer Program for small scale projects only –10 MW or less –must connect to distribution system and not transmission system intended to reduce disproportionate cost of RFP process for localized generating projects –will be administered by local distribution companies on behalf of OPA launching in November –no experience to-date –very high level of interest

14. 14 Standard Offer Contract initially only available for renewable sources 20 year term but program may be modified (or suspended) for new entrants at any time pricing based on most recent renewables RFP plus: –allowance equivalent to avoided transmission losses –allowance for small-scale (as noted from RFP results) a special incentive rate for solar voltaics has been put in place to determine the value and uptake rate in the Ontario context

15. 15 Summary single buyer negatives –without extraordinary effort, brings neither the precision of a centralized monopoly (match of projects built with system needs) nor the risk transfer of a market based system (contract results in moving risks onto consumers) single buyer positives –ensures investment happens and therefore useful in situations where: ensuring supply reliability during the transition toward a competitive electricity structure a competitive electricity structure is not feasible (small or isolated system) and it is desired to use private capital and not public capital

16. 16 Appendix: RFP Contract Summary gas-fired generation: –20-year financial contract –gas price risk pass through to buyer –deemed dispatch – provides financial incentive for operating when market economics so dictate –dispatch price determined from heat rate and market price –total economics to plant = plants contracted Net Revenue Requirement (proxy for capacity payment) some or all of economics gained from market buyer tops-up when market economics are insufficient however, Buyer claws-back economics when market economics exceed Net Revenue Requirement renewables: 20-year physical contract Buyer resells into market no obligation to operate paid only for actual production