Remember well the stockpiling of coal in the 70s. I worked for the NHS (heck, still do for another 2 weeks) and on one of the hospital sites convoys of lorries delivered umpteen tons of coal in every place possible. This was to supply the boilers on the delivery site and another major site. Supplies used to get through to the hospitals so after it was over it all had to be loaded to lorries and delivered to the right place.
There were also deliveries of army generators to cope with power supply outages. Nowadays hospitals have generators capable of supplying the whole site in the event of power failure.
However, petrol and diesel is a little different - I will use a tankful this weekend and then I will need more. OK if you just pop a mile down the road once a day a tankful will last a long time but anyone doing a high mileage they will soon require more.
Paul"Don't think of them as problems, think of them as opportunities."
"OK, I think I've hit an insurmountable opportunity!"