A presentation to the Framework Administrator for the Brought together Vitality Arrangement of Russia Moscow, Russia Sep

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Kill Market Power of the Vertical Utilities. Expansion Number of Market Participants ... Dispatches generators with basepoints to meet the 5 moment anticipated ...

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Overseeing System Reliability in the New York Competitive Energy Markets A presentation to the System Operator for the Unified Energy System of Russia Moscow, Russia September 2007 Paul Kiernan Reliability Senior Engineer New York Independent System Operator

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The NYISO's Primary Purposes Reliable Operation of the New York Bulk Power System Administration of the Wholesale Electricity Markets

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Capacity Transmission Congestion Contracts NYISO Markets and Auctions Energy Virtual Trading Ancillary Services

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Generate Transmit Distribute Bill Customers Pre-Restructuring Vertically Integrated Utilities Eight Utility Companies _____________________________________________________ Long Island Lighting Consolidated Edison Orange and Rockland Central Hudson Niagara Mohawk New York State Electric Rochester Gas and Electric New York Power Authority _____________________________________________________ New York Power Pool Coordinated Operations

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Pre-Restructuring Power System Operation Each utility worked autonomously Scheduled generator and transmission support Committed and dispatched era to meet load Determined exchange plans Controlled voltage with mVar assets Controlled streams with stage point controllers Determined exchanging operations Solved neighborhood transmission security issues Distributed vitality to the clients in its establishment domain

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Pre-Restructuring Economic Operation Each utility was: Regulated by government and state organizations Purchased and sold vitality Direct Two Party New York Power Pool Central Dispatch Prices dictated by creation costs Scheduled exchanges on its transmission framework for its sole advantage

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Pre-Restructuring Coordinated Operations New York Power Pool (Voluntary partnership of the eight utilities) Reserves Transaction plans Central Energy Dispatch Interconnection arranging/working studies Principle Directive : Maintain Reliability

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Post-Restructuring Disaggregate Functions Eliminate Market Power of the Vertical Utilities Increase Number of Market Participants Increased Competition Will Drive Down Prices Open the Transmission Systems Ensure access to just for focused utilize

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Pre-rebuilding Eight Vertically Integrated Utility Companies New York Power Pool Coordination Central Dispatch Post-rebuilding More than 120 Market Participants Disaggregated Market Functions Generating Companies Transmission Companies Power Marketers Load Serving Entities NYISO Operate Power System Administer Markets Comparison

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Markets Multiple Market Participants Profit Motive Flexible Market Design Maximum Use of the Transmission System Reliability Need to Maintain the Reliability of the System Highly Constrained System Post-Restructuring Challenge

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Independent System Operator Maintain framework unwavering quality Assume control of the New York transmission framework Comprehensive wanting to ongoing security Facilitate reasonable and open access to the transmission framework Determine duty of era assets Determine exchange plans Impartially manage discount power markets Bid-based framework; offers are classified Clearing costs are distributed

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Standard Market Design Two Settlement System Day Ahead Commitment Real Time Commitment Real Time Dispatch

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Two Settlement System Day Ahead Market Opportunity to secure costs for following day Loads supply offers to buy vitality For all, part or none of following day stack Generators supply offers to offer vitality Bilateral exchanges acknowledged Various evaluating fences accessible Clearing costs are made open

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First Settlement: Day Ahead Schedule Scheduled Load & Generation get to be forward deals and buy contracts… . with money related commitments to give or devour real vitality .

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11 AM - Day Ahead Results Posted Day 0 HB3 HB4 HB5 HB6 0 15 30 45 0 15 30 45 0 15 30 45 0 15 30 45 0 Day Ahead SCUC 5 AM - Day Ahead Market Bids Due Day 1 Hour Ahead RTC 75 Minutes before Hour Bidding Closes 30 Minutes before Hour Results Posted Market Timing Real Time Dispatch RTD Basepoints Every 5 Minutes AGC Basepoints Every 6 Seconds HB5 0 15 30 45 0

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11 AM - Day Ahead Results Posted Day 0 HB3 HB4 HB5 HB6 0 15 30 45 0 15 30 45 0 15 30 45 0 15 30 45 0 Security Constrained Unit Commitment 5 AM - Day Ahead Market Bids Due Day 1 Real Time Commitment 75 Minutes before Hour Bidding Closes 30 Minutes before Hour Results Posted Market Timing Real Time Dispatch RTD Basepoints Every 5 Minutes AGC Basepoints Every 6 Seconds HB5 0 15 30 45 0

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Load Forecasts Load Bids Energy Offers Transaction Bids Virtual Load & Supply System Constraints Outages Day Ahead Security Constrained Unit Commitment Clearing costs Forward Contracts Preliminary Schedule Real Time Commitment Hour Ahead Energy Offers Transaction Bids Advisory costs Preliminary Dispatch Transaction Schedule Market Inputs Real Time Load Real Time Dispatch Real Time Dispatch Real Time costs Real Time Dispatch

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Security Constrained Unit Commitment Day Ahead Commitment device 1. Chooses most financial blend of era and exchange assets as offer to meet anticipated load and save necessities in view of offers gave 2. Calendars are obliged by security assessments perceives all transmission limits perceives all interface limits 3. Builds up day-ahead forward contracts for era, load, and exchanges

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Chateauguay New York ISO Willis Moses Transmission System Massena (230 kV or more) Plattsburgh Adirondack Oswego Complex Somerset Marcy Rotterdam Sta.80 New Scotland Edic Pannell Clay Porter Huntley Alps Stolle Rd. Lafayette Leeds Meyer Dunkirk Watercure Fraser Oakdale Hillside Coopers Pleasant Corners Valley Roseton Rock Buchanan Tavern Millwood Legend: Homer City 765 kV Ramapo Sprainbrook 500 kV Dunwoodie W49St/Rainey 345 kV Shore Rd. Farragut 230 kV E.Garden City Goethals St. Lawrence Niagara Gilboa CSC Neptune

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Dunwoodie Farragut Goethals Chateauguay Stability Constraints Saunders Willis Moses-St. Lawrence Massena Dennison Plattsburgh Moses South Sandbar Colton Blissville Whitehall Adirondack Central - East Bennington Hoosick Oswego Dysinger East Complex Somerset West - Central Marcy Rotterdam Beck Niagara Sta.80 Pannell New Robinson Rd. Scotland Edic Porter Clay Huntley Alps Gilboa Lafayette Stolle Rd. Richfield Springs Inghams Leeds Gardenville Meyer Andover Palmiter Total - East Dunkirk Fraser Watercure Oakdale Hillside Coopers Pleasant Corners Valley Roseton Upny - Con Ed Rock Buchanan Tavern Millwood Legend: Dunwoodie South Homer City 765 kV Ramapo Sprainbrook 500 kV W49St/Rainey 345 kV Shore Rd. 230 kV E.Garden City 115 kV

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Real Time Commitment Hour Ahead Real Time Commitment Same programming model and structure as Security Constrained Unit Commitment Runs at regular intervals, advancing ten periods – totaling 2 ½ hours Observes upgraded stack conjecture Evaluates asset prerequisites Generator blackouts, exchange cuts, changes to topology Recognizes Hourly Bid Transactions Commits 10 and 30 Minute begin assets Recognizes unit startup times and costs Produces admonitory costs

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Real Time Dispatch Real Time Dispatch Same programming model and structure as Security Constrained Unit Commitment and Real Time Commitment Dispatches generators with basepoints to meet the 5 minute anticipated load figure Adjusts era to tackle security limitations Maintains save necessities Develops direction dispatch "basepoints" like clockwork to right Area Control Error Calculates ongoing clearing costs

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Second Settlement: Real Time Market More Options Loads can plan respective exchanges Buy at continuous costs Generators can plan reciprocal exchanges If acknowledged in the day ahead market Can bring down offer costs If not acknowledged in the day ahead market Can expand, diminish or keep up offer cost

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Second Settlement: Real Time Balancing Market Paid predictable with their forward contracts Generators that work as booked Loads that expend as planned Purchase and additionally offer supplemental vitality, as required, at ongoing clearing costs Generators that work uniquely in contrast to planned Loads that devour uniquely in contrast to booked

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Real Time Actual Load < Day Ahead Load Real Time Actual Load 45 MW Load Buys 5 MW @ Real Time Price Real Time Real Time Load Consumed 40 MW Bought @ Day Ahead Clearing Price Second Settlement First Settlement Day Ahead Load Buys 40 MW @ Day Ahead Clearing Price

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Real Time Actual Dispatch 45 MW Generator Sells 5 MW @ Real Time Prices Real Time Real Time Generator Dispatched 40 MW Sold @ Day Ahead Clearing Price Real Time Actual Dispatch < Day Ahead Dispatch Second Settlement First Settlement Day Ahead Generator Sells 40 MW @ Day Ahead Clearing Price

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REAL TIME Load Sells 10 MW @ Real Time Price Excess 10 MW Real Time Actual Load 30 MW Load Consumed 30 MW of 40 MW Bought @ Day Ahead Price REAL TIME Real Time Actual Load < Day Ahead Load Second Settlement First Settlement Day Ahead Load Buys 40 MW @ Day Ahead Clearing Price

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Real Time Generator Buys 10 MW @ Real Time Price Excess 10 MW Real Time Real Time Actual Dispatch 30 MW Generator Dispatched 30 MW of 40 MW Sold @ Day Ahead Price Real Time Actual Dispatch < Day Ahead Dispatch Second Settlement First Settlement Day Ahead Generator Sells 40 MW @ Day Ahead Prices

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The New York Independent System Operator (NYISO) i

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