$65/MWh is 6.5c per kWh, presumably to store and retrieve it once. I pay about 35c per kWh so there seems room for that to work for me although somehow in the U

$65/MWh is 6.5c per kWh, presumably to store and retrieve it once. I pay about 35c per kWh so there seems room for that to work for me although somehow in the UK everything seems to cost five times as much.