This one really is Blue Sky, or possibly Bright Sky, Thinking. Far from a new local currency there is now a group (or individual?) in Canada called ThePerfectCurrency promoting kilowatt hours of electricity as a new currency that is backed by something tangible. Sort of.
They admit to not having quite got the storage technology worked out but freely speculate about storing large quantities of energy on a credit card! Which would itself be a major leap forward for electric vehicles etc but in the meantime I suppose the nearest thing is investing in fossil fuel storage. Not quite what we’re about.
Worth a look, but there’s a bug in the page navigation so do use the page numbers, not the Prev/Next links.