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Interesting Maps
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I think a big part of the problem with that map comes down to two things: gas re-exports and virtual exports.
For example, with natural gas (LNG, not LPG - liquefied petroleum gas), gas can be transported via pipeline from Scotland to County Meath and then sent to Northern Ireland. It could even be possible that the gas comes from Norway, Qatar, or Oklahoma by ship and is landed in Britain and sent via pipeline to Ireland.
Conversely, gas from the Corrib field off Mayo or a biomethane supplier could be sold to a UK buyer. Now, nobody is going to do the log truck thing and send Irish gas to Britain, while British Gas is being sent to Ireland. A virtual movement of gas takes place.
With LPG, the only places I know where it is imported in Ireland are Belfast Port, Drogheda, Dublin Port and Tivoli in Cork. At Whitegate Refinery in Cork, there is a Calor Gas bottling plant next door. In Belfast, there are bottling plants for Flogas and Calor Gas. It is possible that some of that crosses the border in either direction.
Remember that Ireland is in the US$1m-100m category. It could be a very small about of gas.
Gas map for Ireland from: The blue pipes are owned by Gas Networks Ireland. The orange pipelines are owned by Mutual Energy or one of several local distributors in Northern Ireland.
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Migration routes from the British Isles to early colonial America, 1610s–1790s.
Amazing Maps@amazingmap ·Oct 13 This map illustrates migration patterns from the British Isles to North America during the early colonial era (1610s–1790s). Each arrow represents a major stream of settlers whose regional origins in Britain helped shape distinct cultures in the emerging colonies.
More https://x.com/amazingmap/status/1977824725859799160
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Maps of the surface of Saturn's largest moon Titan, invisible from above its thick, opaque orange nitrogen and methane atmosphere.
Titan is the only other solar system body apart from Earth known to host flowing liquid on its surface in the form of rivers, lakes and small seas. These images were compiled from Cassini mission radar and infra-red imagery of the moon taken between 2004 and 2017.
Post edited by JupiterKid on11 -
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VRF is virtual reverse flows
There's some storage
Interconnector 1 is 187 km * 0.6m diameter. Gas pressure is ~100 bar so 4,948,008 m3 of gas decompressed.
is 195 km * 0.75m ~ 8,614,836m3
Together would have 155.972 GWh at 11.5 KWh/m3 or 6.5GW days
There's also gas in other pipelines of smaller diameters but 2,477 k of them at maybe 60-75 bar ?
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Note that maximum operating pressure and current pressure can be quite different. I suspect this will be down to expected demand and the cost of pumping it around the system. Some of the pipes on that map are parts of the lower-pressure, smaller-diameter-pipe distribution network, operating at 4-19 barg and as small as 150mm diameter.
They think, in the event of a complete loss of supply, that they have 2-3 days of gas in the system, depending on demand from power stations, which is dependent on the weather (cold = less time, windy = more time). However, a complete loss is unlikely, given that there is more than one gas entry point. In the event of a complete loss of supply, power stations are likely to be told to use their back-up oil supplies first (typically 3 days worth on site, several months worth at fuel depots), and customers will be asked to minimise usage.
Maximum operating pressures look something like this:
Note: bar(g), barg or BarG, is a variation of the bar unit for gauge pressure: It is the number of bar above atmospheric pressure. So 4 barg is 5 bar and 70 barg is 71 bar. barg is important, as atmospheric pressure can vary. If your hob is operating at 1.02 bar and it's a nice sunny day with high atmospheric pressure (Irish record 1.051 bar), then getting the gas to flow would be problematic. The offshore section of Corrib was tested to something like 400 barg, but operates around 100 barg.
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