Orison panel and tower energy storage

Here is a novel way to get a lot of storage (but at a lot of price, too).

http://orison.energy/

Just plug it in before the converter in an RV. 2200 watts continuous with surge 3500. $4400.00 will get you 8.8 kwh of storage (over twice what the power wall offers).

Weight is 40 lbs for each module.