Gasbalancing
Conditions for shippers Services offered by GTS
Suggestions for improvement A TSO?
RWE Gas Nederland N.V.
Daily balance
Entry vs exit max delta 2%
Hourly tolerance
Entry vs exit max tolerance 25%
During 2002 & 2003 limited to 13%
Extreme penalty regime on imbalances
To comply with these rules gas shippers need (online) hourly metering data of the exit points
Daily balance
Entry vs exit max delta 2%
Hourly tolerance
Entry vs exit max tolerance 25%
During 2002 & 2003 limited to 13%
Extreme penalty regime on imbalances
To comply with these rules gas shippers need (online) hourly metering data of the exit points
Balancing rules with GTS
Information exchange in Dutch Gas Market: a disaster!
Hourly offtake data customers > 10 mio (GTS grid) daily available
Hourly offtake data customers < 10 mio (RDC‘s) very limited available. Most of the RDC‘s failed completely in their data-management. Data comes available
months after the fact
Allocations to gas shippers on a national level impossible. In Feb 2003 there is still no allocation available for Jan 2002
Hourly offtake data customers > 10 mio (GTS grid) daily available
Hourly offtake data customers < 10 mio (RDC‘s) very limited available. Most of the RDC‘s failed completely in their data-management. Data comes available
months after the fact
Allocations to gas shippers on a national level impossible. In Feb 2003 there is still no allocation available for Jan 2002
Main Shippers (RWE, & Others, etc) behaviour
I want to have my customer‘s hourly off-take data because:
I have the need to optimise my operations, and I want to comply with GTS rules
Forget about the RDC‘s, I will put in my own
(state of the art) metering equipment
Main Shippers behaviour
At „RDC-sites“: install metering & datacommunication units
Use of prognosis tools & software
Wheather reports vs actuals, always differences
Max accuracy demand prognosis at metered site 95% to 105%
At „RDC-sites“: install metering & datacommunication units
Use of prognosis tools & software
Wheather reports vs actuals, always differences
Max accuracy demand prognosis at metered site 95% to 105%
Daily Forecaster Performance (Where data is available)
0,00 5,00 10,00 15,00 20,00
% %
Dte transport guidelines
•GTS daily imbalance max 2% !
•Shippers cannot achieve this with the current data situation
•GTS is obliged to offer a flexibility service
•Shippers must be able to balance their portfolio
GTS offers Tolerance Service
Does it work?
Shipper: New
Position: 1bcm gas sales
Tolerance Volume bought at GTS: 0.5 million m3
Cost: 0.5 million €
(only possible when he spends also 1 million € on Tolerance Capacity!)
Volume sold on average winterday: 5 million m3
Day 1 2 3
Wheather Cold Warmer Average
Progn/Nom. 5,000,000 m3 4,500,000 m3 4,750,000 m3
Realisation 104% 5,200,000 m3 92% 4,140,000 m3 96% 4,560,000 m3
Long/(Short) -200,000 360,000 190,000
Start TSV 50% 250,000 m3 50,000 m3 410,000 m3
End TSV 50,000 m3 410,000 m3 600,000m3
•Did it work?
•No, on day 3 the shipper is in trouble
•He oversupplied his TSV, volume sold at half price!
•Pay 1.5 million € for TSV service, after 3 days nevertheless in trouble!!
How is the largest shipper managing its balancing?
Gasunie Trade & Supply does not do off- take prognosis nor hourly nominations!
GTS is doing this for them! As a service!?
Actions of the (new) shippers!
•Advised GTS on an other method using the TSV, namely daily “new start”
•Requested daily info on “volume in buffer”
•Requested daily info on “imbalance situation”
•No results yet!
•GTS often still acting as “old Gasunie”
•However GTS is making significant progress in cooperative acting!
