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PNW Regional Contingency Resources

Resource Adequacy Technical Committee

April 6th, 2011

Resource Adequacy Standard

2008 RA standard counts significant events: 28,800 MWhrs of energy (per season) or 3,000 MW of capacity (any 1 hour)

Any games that exceed these thresholds are considered a ‘miss’

Proposed alternative: build a contingency resource stack and count all misses

Assign contingency resources to various ‘buckets’ (by cost, control, stress, etc.) and evaluate use in Genesys post processing

First bucket (CR 1) – utility programs Second bucket (CR 2) – non-utility emergency generators Additional buckets?

Utility Contingency Resources – CR 1

Includes Demand Response (DR) programs sponsored by load serving entities – direct control over loads and or resources either in real-time or day ahead

Most successful DR programs are for irrigation and A/C – good for peak shaving of summer peaking utilities

Other programs such as AGC standby generation can provide capacity and energy across seasons

Therefore it is necessary to track contingency resources by seasons and contributions to both energy and capacity

PacifiCorp

PacifiCorp 2008 IRP Update (March 2010)2019 PlanProgram: Energy (MWhrs) Peak (MW) SeasonIdaho Irrigation Pump AGC (Existing) peak shaving 275 SummerNew Irrigation in Idaho peak shaving 12 SummerNew Irrigation (CA, OR, WA) peak shaving 20 SummerCommericial Curtailment peak shaving 78 AnnualInterruptible Contracts* 35,444 327 Annual

*Energy is calculated from Mosanto Contract for system emergency and economic dispatch

Idaho Power and PGE

Idaho Power 2009 IRP Existing and Action PlanProgram: Energy (MWhrs) Peak (MW) SeasonA/C Cool Credit peak shaving 51 SummerFlex Peak Management peak shaving 45 SummerIrrigation Peak Rewards peak shaving 250 Summer

PGE 2009 IRPProgram: Energy (MWhrs) Peak (MW) SeasonInterruptible Contracts* 480 10 AnnualDirect Load Control* 2,880 60 AnnualAGC Standby Generation* 48,000 120 Annual

*Contracts and Load Control 12 times per year * 4 hours a day; Generation 400 hours per year

Summary of CR 1

Energy (MWhrs) Peak (MW) Energy (MWhrs) Peak (MW)Banks Lake - BPA 0 300 0 300

PacifiCorp 35,444 405 35,444 712Idaho Power 0 0 0 346

PGE 51,360 190 51,360 190Totals 86,804 895 86,804 1548

CR 1Utility Programs

Winter Summer

CR 2 – Data Center Emergency Generation

Facility: LocationNumber of Generators Peak (MW)

Run Time Per Year

(hrs)*Energy

(MWhrs)Sabey and Blackrock East Wenatchee 6 15 48 720T-Mobile Wenatchee 20 40 113 4,520Vmware Wenatchee 10 20 44 880Intuit Quincy 9 23 400 9,200Yahoo Quincy 23 52 100 5,200Microsoft Quincy 37 96 48 4,608Google The Dalles 30 60 100 6,000Facebook Prineville 28 84 100 8,400

390 39,528

*Run time in WA site specific in air permit; Oregon emergency generation no permit required if less than 100 hours per year

CR 2

Data Center Emergency Generators (Annual)