Post on 03-Feb-2022
Route planner for efficient gas transport through the NetherlandsRobert van der Geest
Gas/Electric PartnershipHouston, TexasFebruary 9, 2011
The Netherlands are a "gas country"
Invention of Gas:Jan van Helmont
(1648)
Certification and Injection of Green Gas
Production of Natural Gas80 BCM (2,8 TCF) per year
History of the "gas house" of the NetherlandsNatural gas
1873 Royal Dutch Gas Association (KVGN)
1959 Groningen gas field1963 Nederlandse Gasunie
2005 Transport: Gasunie
Trade: GasTerra
2009 R&D: KEMA
Electricity
? Union of directors of electricity producers (VDEN)
1927 R&D: KEMA
1949 Collaboration of electricity producers (S.E.P.)
1989 Transport: TenneT
2010 Power Matching CityHoogkerk
KEMA around the globe
Towards further integration of gas and electricity networks
TTF
Smart gridMicro CHPWind powerHoogkerk
Growing challenge of gas transport in a changing world of energy Liberalization of the gas market leads to
greater complexity Integration of renewable energy leads to
greater volatility Network operators face regulatory pressure to
cut operational cost Pressure from the public on environmental
targets
Provide safe and reliable gas transport against minimal cost, in a way that spares the environment as much as possible
Target to reduce the CO2 footprint of gas transport by 20 percent in 2020
[kton CO2e]
[€/ton CO2e]
Ranking of measures using an abatement curve
Emission reducing measures…
6. Route planner for gas transport…
11.Electric compressors…
6
11
11. Electric compressors
Construction of the electric Noord-Holland Compressorstation at Anna Paulowna:
6. Route planner for gas transportSystem parameters ~15000 km (~10000 miles) ~100 entry points ~1000 exit points Exit capacity ~1 BCM/day (~1 Bcf/h) 5 different gas qualities
Route planner specifications Online tool Minimize operational cost
– Compression– Nitrogen– Line-pack
Maintain security of supply Transient system Empirical models
Interaction of the route planner with gas network operators ("dispatchers")
The route planner runs in the background, producing gas transport plans autonomously
Day-ahead cost-optimal gas transport plan on the basis of shipper nominations and predicted gas demand in the public market
After optimization, plans are fed into the simulator for manual fine tuning
Dispatchers configure certain set points and ranges prior to optimization
Benefit I: the route planner as a tool to maintain security of supply
Feasible gas transport plan based on expected gas supply and demandRobust against re-nominations by shippers
and variations in demand in the public gas market
Now: pressure margins
Future: scenario based analysis
Benefit II: develop intuition for gas transport in a changing worldNew gas infrastructure and increased transit flow
fundamentally change the gas transport landscapeDispatchers are still working in a “pressure” world, not
a “flow” worldAgeing human assets (operators)
Develop awareness of the operational cost of gas
transport, by including the use of the route planner in the work procedures of dispatchers
Develop intuition and new rules-of-thumb by frequent use of the route planner
Train new operators
Benefit III: Energy management of electric compression
The advent of electric compression creates opportunities for trade-off between line pack in the gas network and imbalance of the electric grid through the spot market for power production ramp-up/ramp-down
Current trials with an integrated energy management system for fuel gas and electricity show promising results
Demonstration
Concluding remarks The route planner has been working "live" in
the Gasunie control room for 10 months without problems
Capable of finding optimal day-ahead plans in a highly complex gas transport network
Providing security to the operators that they will be able to deliver gas according to the needs of the market
Saving average operational cost by 1 – 3 % Powerful tool for developing insight in the
changing gas transport landscape Tool for integrated energy management of the
gas and electricity network
Thank you for your attention!
E-mail: robert.vandergeest@kema.com
We Change theWorld of Energy.