Whilst a slight diversion I read this weekend that the Centrica Rough storage site may be again taken out of use for next winter. Centrica and HMG haven’t come to an agreement on funding and now that gas prices are lower, and may drop further the business case isn’t good without additional funding. The other five big players don’t want to participate saying there’s no shortage of gas, and security of supply isn’t a problem. But UKs storage as a percentage of daily consumption is by a large measure the lowest in Europe.
Having a smaller gas storage option than other countries is not necessarily a bad thing, but it depends on the security of supply from the source. The UK has control over much of its gas sources, and as they are unlikely to all go off line together, it therefore does not need as much of a buffer compared to the likes of Germany or other landlocked countries.
It's like "Just In Time " manufacturing, where as long as your suppliers keep the track side delivery schedules, an assembly plant can continue to run very happily, without incurring the cost of large goods inwards warehousing.
What I can't tell you is how much storage is needed, so whether the facility is necessary is obviously open to debate, but from Centrica's perspective the question is "is it an asset or a liability?" I don't know but I suspect when Centrica took over the British Gas business, the facility had contractual covenants that required the facility to remain available as a national strategic element. As such Centrica probably cannot completely decommission it. When its not being used, its a liability with costs associated with it.
Theoretically, Centrica could sell the facility, but who would want to buy it? If as seems likely it has to be maintained for "rainy day", with no guarantee of it ever being used again, it would be a high cost purchase with no prospect of generating any income to cover the purchase or running costs. Not exactly a good business plan.
Consequently, it's in Centrica's interests to be arguing for it to be used as that will generate an income, but if the other suppliers don't see it as necessary, why should they take on an uncontracted cost?