What is an AGI

People ask "What is an AGI"? An AGI is just an acronym for "Above Ground Installation", it’s a cover all for any part of the pipeline installation that is above ground. Ranging site offices to small isolating valves, pumping stations, connection stations and compressor installations with local storage tanks for CO2 (gas or liquid)

This section shows what I believe to be the different types. I am no expert but my research has led to this.
No to Peak Cluster
Flow Diagram

This what Peak Cluster have released in a FactSheet of what they intend to force upon us and our coast line.

The diagram opposite shows the “flow path” of CO2 from capture to insertion into the storage area (seabed in our case). NOTE: The temperatures and the pressure at each stage. The temperatures are a normal effect of compression but as you see due to the pressure these temperatures are really high.
No to Peak Cluster
Section Block Valve.
No to Peak Cluster
Area of land needed to support a Section Block Valve.
The above pictures show a "Block Valve" used to isolate sections of the pipeline in case of issues or routine maintenance.
Also shown opposite is the typical land area to support one; it’s quite a significant area when you consider site security and vehicular access needs.
Access roads would need to be constructed to allow large vehicles access to the area for service or supply of replacement equipment.
No to Peak Cluster
No to Peak Cluster

The pictures above and below are the larger sized AGI constructions used for gas compression, local storage and pumping etc. These type constructions would also be used as "connector sites" where several pipelines from different locations join together for pumping to the final storage area.
Theses are the kind of structures we believe are planned for Meols, Willaston and other locations along the pipeline paths.
The bottom pictures are from existing functioning facilities in Norway.

Compressor sites need large local storage tanks to store CO2 so the compressor can use this to add to the pipe CO2 inorder to compress it. To compress somthing you need extra to maintain the volume to fill the pipe. Compression by itself will only make it smaller.
No to Peak Cluster
Norewgian AGI
No to Peak Cluster
Gas liquefaction factory Norway
No to Peak Cluster
NYNET AGI Point of Ayr
Below are some of the issues we need to worry about. When things go wrong
Credit below: Norman Ord, When a co2 pipe fractures the concentrated co2 becomes dry ice with a temperature of minus 79 degrees, it is so cold it effectively turns the surrounding carbon steel pipe to glass causing an unzipping of the pipe, the result as you can see in the pictures are real and terrifying.
No to Peak Cluster

Block Valve blow out, note the cloud of liquid gas condensing into super cold vapour. Notice it stays low and is lingering at low level.

No to Peak Cluster

Blow out along a pipeline (above ground), note the cloud of liquid gas cloud is falling back down and hogging the ground.

No to Peak Cluster

This looks like an AI image depicting a "Total Failure" along a pipeline (above ground). It depicts the cloud of liquid gas cloud falling back down and spreading outward along the ground.

The details below are from Peak Clusters Peak Cluster Project Guide
The proposed project is to include several types of AGI. These include:

  • Hope AGI: located at Breedon’s Hope cement works and will be used to transfer CO2 from their capture facility to the pipeline.
  • Tunstead AGI: located at Tarmac’s Tunstead and will be used by Tarmac and Buxton Lime to transfer CO2 from their capture facilities to the pipeline.
  • Cauldon AGI: located at Holcim’s Cauldon cement works and will be used to transfer CO2 from their capture facility to the pipeline.

  • North Feeder AGI: located south of Chapel-en-le-Frith, this will connect the pipelines which run from the Hope AGI and the Tunstead AGI.
  • Central Feeder AGI: located south west of Macclesfield, this will connect the pipelines which run from the North Feeder AGI and the Cauldon AGI.

  • Connection AGI 1: located close to Holmes Chapel, this provides the potential for future carbon capture plants to connect to the pipeline.
  • Connection AGI 2: located to the south of Ellesmere Port, this provides the potential for future carbon capture plants to connect to the pipeline.
  • Connection AGI 3: located to the west of Ellesmere Port, this provides the potential for future carbon capture plants to connect to the pipeline.

    • The Coastal AGI
  • Coastal AGI probably the biggest of all: located on the Wirral, this will be where the Peak Cluster pipeline and the MNZ onshore pipeline meet. This is where Spirit Energy take ownership of the CO2 collected at the capture facilities, ready to transport it for permanent offshore storage.

    • Block Valve Stations
    Block Valve Stations (BVS) will enable us to isolate specific pipeline sections to ensure safety when carrying out maintenance or to prevent danger in the unlikely event of an emergency. Early detection systems installed along the pipeline will continuously monitor for potential faults and can pinpoint their location. If an issue is detected, the relevant block valve can be remotely operated to isolate the affected section, ensuring safety and minimising disruption. We will build BVS at regular intervals along the pipeline.