CSWG Settlement Results Report6/17/2013

Jim Galvin

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Settlement Observations- LZ to Hub May 2013 to May 2012

Meeting Title (optional)Date

Load Zone/HUB RTSPP Period: May-13              Location Average Zone over HUB Comparison  

Location RTSPP Average Row Labels Average RTSPP Location Average RTSPP Zone over HUB DeltaLZ_HOUSTON 29.98674395 LZ_HOUSTON $29.99 HB_HOUSTON $29.64 $0.34LZ_NORTH 28.44756384 LZ_NORTH $28.45 HB_NORTH $28.33 $0.12LZ_SOUTH 32.08014449 LZ_SOUTH $32.08 HB_SOUTH $29.44 $2.64LZ_WEST 39.42989919 LZ_WEST $39.43 HB_WEST $28.91 $10.52LZ_AEN 31.03408602 Grand Total $32.49 Grand Total $29.08 $3.41LZ_CPS 29.72921371  HB_HOUSTON 29.64330645  HB_NORTH 28.3259039  HB_SOUTH 29.43991599  HB_WEST 28.91489247                       

Load Zone/HUB RTSPP Period: May-12              Location Average Zone over HUB Comparison  

Location RTSPP Average Row Labels Average RTSPP Location Average RTSPP Zone over HUB DeltaLZ_HOUSTON $21.49 LZ_HOUSTON $21.49 HB_HOUSTON $21.23 $0.26LZ_NORTH $21.68 LZ_NORTH $21.68 HB_NORTH $21.05 $0.63LZ_SOUTH $22.27 LZ_SOUTH $22.27 HB_SOUTH $21.15 $1.12LZ_WEST $26.93 LZ_WEST $26.93 HB_WEST $18.42 $8.52LZ_AEN $22.66 Grand Total $23.09 Grand Total $20.46 $2.63LZ_CPS $23.13  HB_HOUSTON $21.23  HB_NORTH $21.05  HB_SOUTH $21.15  HB_WEST $18.42  Grand Total                    

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Settlement Observations- LZ to Hub May 2013 to Apr 2013

Meeting Title (optional)Date

Load Zone/HUB RTSPP Period: Apr-13              Location Average Zone over HUB Comparison  

Location RTSPP Average Row Labels Average RTSPP Location Average RTSPP Zone over HUB Delta

LZ_HOUSTON $35.05 LZ_HOUSTON $35.05 HB_HOUSTON $34.92 $0.13LZ_NORTH $37.18 LZ_NORTH $37.18 HB_NORTH $35.05 $2.13LZ_SOUTH $35.51 LZ_SOUTH $35.51 HB_SOUTH $34.58 $0.93LZ_WEST $38.55 LZ_WEST $38.55 HB_WEST $29.74 $8.82LZ_AEN $34.43 Grand Total $36.57 Grand Total $33.57 $3.00LZ_CPS $34.66  HB_HOUSTON $34.92  HB_NORTH $35.05  HB_SOUTH $34.58  HB_WEST $29.74  Grand Total                    

Load Zone/HUB RTSPP Period: May-13              Location Average Zone over HUB Comparison  

Location RTSPP Average Row Labels Average RTSPP Location Average RTSPP Zone over HUB DeltaLZ_HOUSTON 29.98674395 LZ_HOUSTON $29.99 HB_HOUSTON $29.64 $0.34LZ_NORTH 28.44756384 LZ_NORTH $28.45 HB_NORTH $28.33 $0.12LZ_SOUTH 32.08014449 LZ_SOUTH $32.08 HB_SOUTH $29.44 $2.64LZ_WEST 39.42989919 LZ_WEST $39.43 HB_WEST $28.91 $10.52LZ_AEN 31.03408602 Grand Total $32.49 Grand Total $29.08 $3.41LZ_CPS 29.72921371  HB_HOUSTON 29.64330645  HB_NORTH 28.3259039  HB_SOUTH 29.43991599  HB_WEST 28.91489247                       

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May 2013 Price Volatility

Analysis of North HUB

• Max $843.98 (May 9, 2103 Intervall 6:45)• Daily Average for May 9 $52.39• High prices sustained for an hour, possible unit trip

Category Count Percent

Less than $18 64 2.15%

Less Than $35 2,631 88.41%

Greater than $100 9 0.30%

Greater than $500 2 0.07%

Greater than $1000 0 0.00%

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Cost to Serve Load- May 2013 v 2012

Cost to Serve Load Summary: May-13 $1.22 May-12 $0.80

  May-13

  Arithmetic Average Related Charges    

    Non-Spin Rsrv Chrg Reg Dn Srvc Chrg

Reg Up Srvc Chrg

Rspnsv Rsrv Srvc Chrg Revenut Neutrality Adj

  On-Peak $0.24 $0.07 $0.13 $0.82 $0.12

  Off-Peak $0.09 $0.19 $0.14 $0.59 $0.05

   Average $0.17 $0.13 $0.13 $0.71 $0.09

 

  May-12

  Arithmetic Average Related Charges    

    Non-Spin Rsrv Chrg Reg Dn Srvc Chrg

Reg Up Srvc Chrg

Rspnsv Rsrv Srvc Chrg Revenut Neutrality Adj

  On-Peak $0.08 $0.07 $0.11 $0.61 -$0.07

  Off-Peak $0.02 $0.08 $0.09 $0.38 $0.21

   Average $0.05 $0.07 $0.10 $0.49 $0.07

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• May weather was mild, temperatures slightly below normal• Market price volatility on May 9 (outage based?)• Congestion volatility primarily remains out West• Increases in Emergency Energy uplift in April 2013, somewhat re• Ancillary Services increase by ~$0.40 /MWh

April Highlights

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CSWG Initiatives

• Reduced Settlement Timeline– Weekly calls provided good discussion but little concern from

market participants– Current timeline has not seen a change for when Data

Aggregation is run so impact on Data availability is minimal– ERCOT provided “what if” scenario results on available data for

a 1-day reduction in when Data Aggregation is run• CSWG does not see any need to hold up the transition into the

next stage for further reduction of the Settlement Timeline• Weekly calls will start up again after the next reduction in the

Timeline– CSWG will work to identify success criteria and testing needs

during next phase reduction of timeline

Meeting Title (optional)Date

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Questions?

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