I was paying triple+ for home-heating propane last February compared to Trump-era summer pricing. Some of that is the normal winter/summer price difference. (300 gallons/$1100)
My last fill was within the last month; "only" double the Trump-era pricing. (500 gallons/$1050)
My "1000 gallon" (they won't fill it above 750 gallons) tank does not have a liquid line; I can't refill my own bar-b-cue "20 gallon" tanks. Dirtbags.
I don't know how that compares to LPG.
For your 500 USg, road fuel LPG would cost (at current exchange rate) $1650. It attracts tax for road use but nothing like as much as petrol or diesel which is in excess of 50% of the retail price.
By comparison, 500 USg of gasoline here would cost $3980 and diesel $4540 (minimum).
500 USg of LPG for domestic use would be between $750 and $1120. Looks like USA and UK prices for domestic LPG are similar - but ours was never the 'half' that you once had.
