>it assumes that the cost of a kWh of battery remains at today's high value. If battery costs are falling rapidly (and they are), then the value of a used batte

>it assumes that the cost of a kWh of battery remains at today's high value. If battery costs are falling rapidly (and they are), then the value of a used battery pack will be driven down as inexpensive new packs come on the market Good point. However, this also means that utilities are going to adopt renewables a lot more since storage will be getting cheaper.