SAMPEI user interface Modifications in force from 1st november 2013 on –Withdrawal Phase

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SAMPEI user interface Modifications in force from 1st november 2013 on –Withdrawal Phase

Introduction

The following slides explain the main modifications to the SAMPEI user interface for the withdrawal phase in force from 1st november 2013 on, carried out accordingly to Aeeg resolutions 75,92 e 353 of 2013.

Possibility, for each storage service and related storage stock, to make seasonal, monthly and daily nomination program

Possibility to nominate/re-nominate for each storage service and related storage stock

Possibility to select the flow direction (injection/withdrawal)

Visualization of nomination cycles

Volumes of PB Gas

Possibility to allocate the sold/bought gas on each stock

Report capacità disponibiliReport of available capacities

Form for gas stock allocation rule at 31° october 2013

Resolution 353/2013/R/GAS of 1st August 2013

Publications of the modifications done for the calculation of the withdrawal capacity

Examples of withdrawal capacity calculation for the peak and uniform services

Informations of withdrawal capacity cut

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NOMINATION PLANNING OCTOBER/NOVEMBER

Weekly planning execution from 28th to 31° october 2013

Nomination of gas day 1° november; capacity allocated on the different stocks

• Renomination of gas day 1° november; capacities allocated on the different stocks

• Seasonal planning execution

Mandatory - Dead-line for seasonal planning execution

Seasonal planning disabled

15th october 2013

24th october 2013

31st october 2013

14th november 2013

1st november 2013

10th november 2013

Start of weekly nomination planning

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SEASONAL/MONTHLY/WEEKLY PROGRAM

Each User will split the nomination program on each stock

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DAILY NOMINATION FOR DAY G

Nomination CycleC1 indicates nomination cycle at 13.00C2 indicates nominatin cycle at 19.00

1. Select gas day of interest or from day a to day e2. Click on «Cerca»3. data window appears4. Choose the flow direction ticking the check box5. Insert the nomination values under the different stocks

and click on «Salva»

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RENOMINATION FOR DAY G

1. Select the gas day of interest2. Click on ˝Cerca˝3. Data window appears4. Choose the flow direction ticking on the check box5. Insert the nomination values» under the different stocks

and click on «Salva

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BALANCING PLATFORM (PB) MANAGEMENT

The values shown in column «Limite inseribile» in the injection phase indicate the residual free space in stock In case the user will not insert any value, the allocation in the different stocks will be done accordingly to the storage code rules

Totale da ripartire

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BALANCING PLATFORM (PB) MANAGEMENT

The values shown in column «Limite inseribile» in the withdrawal phase indicate the residual gas in stock In case the user will not insert any value, the allocation in the different stocks will be done accordingly to the storage code rules

Totale da ripartire

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REPORT AVAILABLE CAPACITIES

In this window the capacities of each stock are shown

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COMMUNICATION OF STOCK ALLOCATION(only for injection 2013)

The following communication will be published on the Stogit web site and shall be downloaded and filled in by each User who must indicate the allocation, in percentage terms, of the gas stock into the different services.The form must be sent within 31° October 2013 only by e-mail in pdf format to [email protected] .

To be noticed that the infringment of the time deadline mentioned above will entitle Stogit to allocate the stock into the different service stocks accordingly with the priority order established by the Storage Code paragraph 6.3 up to the complete filling-in of the available space.

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mailto:[email protected]

http://www.autorita.energia.it/allegati/docs/13/357-13.pdf

RESOLUTION 353 – 1st AUGUST 2013Provisions related to the storage service

The Authority for Electricity and Gas (AEEG) on 1st August 2013 has established that Stogit, from 1st November 2013, must update weekly the maximum withdrawal volumes for the following week.

Users who have withdrawn less volume than the optimal volume, will be allocated part of the withdrawal capacity made available by Stogit on its website.

This capacity of the system will be, within the system’s constraints, the maximum withdrawal capacity available.

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http://www.autorita.energia.it/allegati/docs/13/357-13.pdf

RESOLUTION 353 – 1st AUGUST 2013Calculation of the maximum weekly withdrawal volumes

Month of November: monthly withdrawal volumes 600 MSmc = 23.580.000 Gj

Maximum weekly withdrawal volumes= 5.895.000 Gj

The additional withdrawal capacity is allocated to users proportionally to the difference, if positive, between their real gas stock and the optimal gas stock they should have on the basis of contractually defined performances.

Week Weekly volume Gj Residual / surplus

01 5.895.000 002 5.895.000 003 5.895.000 004 5.895.000 0

TOTAL 23.580.000

Week Weekly volume Gj Residual / surplus

01 5.895.000 002 5.000.000 -895.00003 6.495.000 +600.00004 5.895.000 0

TOTAL 23.285.000

In this example the weekly available volume hasn’t been totally withdrawn (5.895.000). The additional withdrawal capacity made available on the following week (600.000) is not equal to the residual of the previous week (895.000) because of system’s constraints.

Optimal withdrawal volume

Real withdrawal volume

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WITHDRAWAL PHASE PUBLICATIONS

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http://www.stogit.it/repository/business_servizi/Comunicazioni_operative/Profili_utilizzo_fattori_adeguamento/Profili_utiliz_2013_2014/Explains_about_withdrawal_phase.pdf

http://www.stogit.it/repository/business_servizi/Comunicazioni_operative/Profili_utilizzo_fattori_adeguamento/Profili_utiliz_2013_2014/Storage_MODULAZIONE.pdf

Calculation of Flat Service’s withdrawal capacity

Stock filling 100%

Contractual Space = 150.000 Gj

Contractual withdrawal capacity CEcontr = (Space/150) = 150.000 / 150 = 1.000 Gj

On 1/11/2013 the adjustment factor (FA) is equal to 1 (Gas stock / allocated space) FA = 150.000/150.000 = 1

CE available = CEcontr * FA = 1.000 * 1 = 1.000 Gj

Monthly withdrawal volume = CE available * days (November) = 1.000 * 30 = 30.000 Gj

Gas Stock i = Gas Stock i-1 – November withdrawal volume = 150.000 – 30.000 = 120.000 Gj

100%Daily Capacity Monthly withdrawal

volume Contractual gas stock (Gcontr) Adjustment factor

150.000

NOV 1.000 30.000 120.000 1

DIC 1.000 31.000 89.000 1

JAN 1.000 31.000 58.000 1

FEB 1.000 28.000 30.000 1

MAR 1.000 31.000 0 (- 1000) 1

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To calculate the withdrawal capacity from the month of December on it’s necessary to take into account the contractual gas stock data:

FA = Gi / Gcontr,i Gi = real gas stock at the first gas day of month iGcontr,i = contractual gas stock at the first gas day of month i

100%Daily

CapacityMonthly withdrawal

volume Contractual gas

stock (Gcontr)Adjustment

factor 150.000

NOV 1.000 30.000 120.000 1

DIC 1.000 31.000 89.000 1

JAN 1.000 31.000 58.000 1

FEB 1.000 28.000 30.000 1

MAR 1.000 31.000 0 (- 1.000) 1

80%Daily

CapacityMonthly

withdrawal volume Gas stock (G) Adjustment factor

120.000 NOV 800 24.000 96.000 0,80

DIC 800 24.800 71.200 0,80

JAN 800 24.800 46.400 0,80

FEB 800 22.400 24.000 0,80

MAR 800 24.800 0 (- 800) 0,80

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Stock filling 80%

Contractual Space = 150.000 Gj

Contractual withdrawal capacity CEcontr = (Space/150) = 150.000 / 150 = 1.000 Gj

On 1/11/2013 the adjustment factor (FA) is equal to (Gas stock / allocated space) FA = 120.000/150.000 = 0,8

CE available = CEcontr * FA = 1.000 * 0,8 = 800 Gj

Monthly withdrawal volume = CE available * days (November) = 800 * 30 = 24.000 Gj


Optimal withdrawal volume Real withdrawal volume


volume Gas stock (G) Adjustment factor

120.000 NOV 800 24.000 96.000 0,80DIC 800 24.800 71.200 0,80JAN 800 60.000 11.200 0,19FEB 190 5.320 5.880 0,19

MAR 190 5.986 0 (-106) 0,19

100%Daily

CapacityMonthly

withdrawal volume Contractual gas

stock (Gcontr)Adjustment

factor 150.000

NOV 1.000 30.000 120.000 1DIC 1.000 31.000 89.000 1JAN 1.000 31.000 58.000 1FEB 1.000 28.000 30.000 1

MAR 1.000 31.000 0 (- 1.000) 1



75.000 NOV 500 15.000 60.000 0,50DIC 500 15.500 44.500 0,50JAN 500 0 44.500 0,77FEB 770 21.560 22.940 0,77

MAR 770 23.560 0 (- 620) 0,77



90.000 NOV 600 18.000 72.000 0,60DIC 600 18.600 53.400 0,60JAN 600 1.000 52.400 0,90FEB 900 25.200 27.200 0,90

MAR 900 27.900 0 (-700) 0,90

Example 1: withdrawal volume increase and resulting FA decrement

Example 2: withdrawal volume decrement and resulting FA increase

Example 3: null withdrawal volume and resulting FA increase


EXAMPLE: Optimal withdrawal volume

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100%Daily Capacity

Monthly withdrawal

volume

Contractual gas stock (Gcontr)

Adjustment factor

* Multiplicative coefficient

150.000

NOV 478,8 14.364 135.636 1 0,38

DIC 781,2 24.217 111.419 1 0,62

JAN 1.978,2 61.324 50.095 1 1,57

FEB 1.285,2 35.986 14.109 1 1,02

MAR 428,4 13.280 829 (0) 1 0,34

* the moltiplicative coefficient is subject to revision during the thermal year in the face of changes in base assumptions


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Calculation of Peak Service’s withdrawal capacity

Stock filling 100%Contractual Space = 150.000 Gj

Minimum Contractual withdrawal capacity (Space/150) = 150.000 / 150 = 1.000 Gj

Additional Contractual withdrawal capacity (Space/577) = 150.000 / 577 = 260 Gj

On 1/11/2013 the adjustment factor (FA) is equal to 1 (Gas stock / allocated space) FA = 150.000/150.000 = 1

CE available = (CEmin + CEadd ) * FA * multiplictive coeff. = 1.260 * 1 * 0,38 = 479 Gj

November withdrawal volume = CE available * days (November) = 479 * 30 = 14.364 Gj


100%Daily

Capacity

Monthly withdrawal

volume

Contractual gas stock

(Gcontr)

Adjustment factor

*Multiplicative coefficient

150.000

NOV 478,8 14.364 135.636 1 0,38

DIC 781,2 24.217 111.419 1 0,62

JAN 1.978,2 61.324 50.097 1 1,57

FEB 1.285,2 35.986 14.113 1 1,02

MAR 428,4 13.280 833 (0) 1 0,34

* the multiplicative coefficient is subject to revision during the thermal year in the face of changes in base assumptions

80%Daily

Capacity

Monthly withdrawal

volume

Gas stock (G)

Adjustment factor

*Multiplicative coefficient

120.000 NOV 383 11.490 108.510 0,80 0,38

DIC 625 19.374 89.136 0,80 0,62

JAN 1.582,5 49.059 40.077 0,80 1,57

FEB 1.028 28.788 11.274 0,80 1,02

MAR 342,7 10.624 650 (0) 0,80 0,34

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Calculation of Peak Service’s withdrawal capacity

Stock filling 80%Contractual Space = 150.000 Gj

Minimum Contractual withdrawal capacity (Space/150) = 150.000 / 150 = 1.000 Gj

Additional Contractual withdrawal capacity (Space/577) = 150.000 / 577 = 260 Gj

On 1/11/2013 the adjustment factor (FA) is equal to (Gas stock / allocated space) FA = 120.000/150.000 = 0,8

CE available = (CEmin + CEadd ) * FA * multiplictive coeff. = 1.260 * 0,8 * 0,38 = 383 Gj

November withdrawal volume = CE available * days (November) = 383 * 30 = 11.490 Gj


Optimal withdrawal volume Real withdrawal volume

100%Daily

Capacity

Monthly withdrawal

volume

Contractual gas stock (Gcontr)

FA *Multiplicative coefficient

150.000 NOV 478,8 14.364 135.636 1 0,38

DIC 781,2 24.217 111.419 1 0,62

JAN 1.978,2 61.324 50.097 1 1,57

FEB 1.285,2 35.986 14.113 1 1,02

MAR 428,4 13.280 833 (0) 1 0,34

80%Daily Capacity

Monthly withdrawal

volume Gas Stock (G) FA *Multiplicative

coefficient

120.000 NOV 383 11.491 108.509 0,80 0,38DIC 625 60.000 48.509 0,44 0,62JAN 791,3 26.982 21.527 0,44 1,57FEB 565,5 15.833 5.694 0,44 1,02

MAR 188,5 5.843 0 (-149) 0,44 0,34


volume Gas Stock (G) FA *Multiplicative coefficient

90.000 NOV 287,2 8.618 81.382 0,60 0,38DIC 468,7 14.530 66.852 0,60 0,62JAN 1.186,9 20.000 46.852 0,94 1,57FEB 1.201,9 33.653 13.198 0,94 1,02

MAR 400,6 12.420 779 (0) 0,94 0,34


volume Gas Stock

(G) FA *Multiplicative coefficient

75.000 NOV 239,4 7.182 67.818 0,50 0,38DIC 390,6 12.108 55.710 0,50 0,62JAN 989,1 0 55.710 1 1,57FEB 1285,2 35.985 19.725 1 1,02

MAR 428,4 13.280 6.445 (0) 1 0,34


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Example 1: withdrawal volume increase and resulting FA decrement

Example 2: withdrawal volume decrement and resulting FA increase

Example 3: null withdrawal volume and resulting FA increase

• The distribution will be done accordingly to the priority of stocks as indicated in the Storage Code (§ 6.3.7)

• Ratio between volume withdrawn per each user and total volume withdrawn of all cutted users

• The volume withdrawn by each user (those who have an higher % withdrawn will have an higher cut)

THE FOLLOWING ELEMENTS ARE TAKEN INTO ACCOUNT FOR THE CUT:

• The difference between available capacity and nomination per each service

• When the sum of nominations exceeds the total available capacity of all users

CAPACITY CUT:

WITHDRAWAL CAPACITY CUT

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SAMPEI user interface Modifications in force from 1st november 2013 on –Withdrawal Phase

Documents

gesconmaster safe

nomination values

day gselect gas day

gas day of interestclick

weekly nomination planning

gas stock allocation

residual gas

soldbought gas