BILFINGER GREYLOGIX
______
AUTOMATION OF
THE 1ST POWERTO-GAS PLANT
CUSTOMER:
Uniper
PIONEERING WORK IN FALKENHAGEN
An important step towards an alternative energy policy was made at the start of June in Falkenhagen: the local power-to-gas plant, an E.ON Gas Storage GmbH pilot project, fed hydrogen into the gas distribution system for the first time. The sophisticated plant and process
control technology that had to be installed in advance was supplied by Bilfinger GreyLogix.
The plant is located in Pritzwalk in the state of Brandenburg. In the future, excess energy
from renewable power generation will be stored here in the form of hydrogen. Six electrolysis units will be able to convert up to 2 MW of electrical power into 360 m3 of hydrogen
per hour in Falkenhagen. The hydrogen is then compressed and fed into the natural gas
grid operated by ONTRAS Gastransport GmbH (a subsidiary of VNG – Verbundnetz Gas AG).
SOLVING CHALLENGES – BILFINGER GREYLOGIX KNOWS HOW
There were a number of factors that Bilfinger GreyLogix had to overcome in relation to the
storage project. Every day up to 30 MWh of energy can be therefore stored in the natural
gas infrastructure, in which the percentage of hydrogen is not permitted to exceed 2 %.
ONTRAS monitors both the gas flow rate and the flow direction and has remote access
with the option of regulating the feed-in of hydrogen to prevent the formation of hydrogen
bubbles.
E.DIS AG (formerly E.ON edis AG), the local electricity provider, also has access to intervene in operations via a network control point. We also connected the modular compressor and electrolysis units that were supplied by Hydrogenics GmbH to the power-to-gas
plant’s process control system as well as a data server, a leakage monitoring system for
the hydrogen feed-in and various C&I circuits. It was imperative that the various communication and protocol standards were taken into account.
FORGING FUTURE PLANS – THE STORY CONTINUES
Even though industrial-scale hydrogen production has been state of the art for many
years – compression to 50 bars and feed-in to gas distribution systems are still uncharted
territory.
Falkenhagen provides E.ON with ideal conditions for amassing knowledge and expertise.
Two different types of compressor and various gas flow measuring instruments, including
visualisation systems, have therefore been installed for this purpose. In addition, filtration
techniques, gas analysis instruments and gas heating systems have also been installed.
The plant’s control system can therefore prevent condensation from forming. Following
commissioning, checks and tests are currently under way to assess which operating
concepts and approaches are viable for the future. The electrolysers’ good partial load
performance will pave the way for their use in the balancing energy market. Accordingly, it
will also be possible to connect regional wind farms to the system.
CONTROL SYSTEM
• 2x S7-300 PLC
• 1x HMI client WinCC including webserver
• 1x Historian & domain server
SERIAL INTERFACES
• OPC (Electrolise packages)
• Profibus FMS (Gas detection)
• Profibus (I/O & DP/DP coupler to the
compressor)
• RK512 (control room)
• Modbus RTU (control room)
• S7 communication (leakage monitoring)
Engineering Solutions
Bilfinger GreyLogix GmbH
Conrad-Röntgen-Straße 1
24941 Flensburg · Deutschland
T +49 461 505487-0
F +49 461 505487-100
[email protected]
http://greylogix.bilfinger.com
FORGING FUTURE PLANS – THE STORY CONTINUES
Even though industrial-scale hydrogen production has been state of the art for many
years – compression to 50 bars and feed-in to gas distribution systems are still
uncharted territory.
Falkenhagen provides E.ON with ideal conditions for amassing knowledge and expertise. Two different types of compressor and various gas flow measuring instruments,
including visualisation systems, have therefore been installed for this purpose. In
addition, filtration techniques, gas analysis instruments and gas heating systems
have also been installed. The plant’s control system can therefore prevent condensation from forming. Following commissioning, checks and tests are currently under
way to assess which operating concepts and approaches are viable for the future.
The electrolysers’ good partial load performance will pave the way for their use in
the balancing energy market. Accordingly, it will also be possible to connect regional
wind farms to the system. |
Engineering Solutions
Bilfinger GreyLogix GmbH
Conrad-Röntgen-Straße 1
24941 Flensburg · Deutschland
T +49 461 505487-0
F +49 461 505487-100
[email protected]
http://greylogix.bilfinger.com