Some of the things they claim are impossible as described, some are illegal (in almost any country) as described (Islanding, or impossibility - direct plug in, ...) and some are very very very unlikely. Their circuit isolation feature during a power outage is impossible as described. If the powered equipment plugs into an outlet on the device it is possible and potentially legal but is not what they describe. If power is fed into the house via a single connection (2 wires plus optional ground) then the isolation required to prevent grid connection is impossible without more equipment between them and the grid. On some of the smartphone display screens it says "ISLANDED". eg upper image in link below. This means that the battery generated AC is isolated from the mains (has its own ISLAND) . This is necessary but impossible if "there is only one road in and out". Image: https://ksr-ugc.imgix.net/assets/005/228/014/2d9f163b9693e382b49ad73c31f817= 9e_original.png?v=3D1453411926&w=3D680&fit=3Dmax&auto=3Dformat&lossless=3Dt= rue&s=3Db07a0ee472d1f78a66267a31d1e327ef The claimed 90% roundtrip efficiency for AC-DC / battery charge / battery discharge / DC-AC is not impossible and not likely. The 10 year/5000 lifecycle warranty presumably means (but may not) that they are getting 5000 cycles from their battery. this is unheard of as a reputable warranted cycle life for any Lithium based chemistries EXCEPT, MAYBE, Lithium Titanate based cells. Following search engine references and wandering through patents can sometimes give a somewhat clear picture of who is doing what and if the claims are relevant or legal or ... . BUT it takes many many hours - which is not justified here. A very quick look shows : A look at references to the claimed chemistry leads to one Chinese company. Except one US patent cites Japanese precedence date from a Japanese patent and may be related to Toshiba. This cell does seem to employ Lithium titanate. Whether the Chinese ones do and whether the Toshiba patent has any relevance is unknown to me. Until now AFAIK LiTi... has been used in very rapid charge/discharge front end cells for eg electric cars but they are backed by more normal batteries for main storage. This use seems new. It may not be .... . To give 2.2 kWh at 5000 cycles the battery probably needs to be run at under 100% DOD (depth of discharge) so needs to be > 2.2 kWh capacity. Also must allow some degradation over time so needs to be > 2.2 kWh or will be < 2.2 kWh after a while. The Kickstarter early bird was $1200 for a 2.2 kWh unit - inverter - charger - battery - glue. Even allow say $1000 for the batter and $200 the rest that's 1000/2.2 =3D $455/kWh. That would be a really really really good price for bare batteries of quality eg LiFePO4 and other Li types may be somewhat cheaper than Lithium Ferro Phosphate and I have not seen a real market price for LiTi... cells so far but the estimates I saw about a year ago were above other Li costs. SO all up I predict a fairly substantial failure. They seem to be offering magic or snake oil in places. Their pricing is magically low. They may be overenthusiastic enthusiasts but it's not inconceivable that its a scam - but there are easier things to scan with. They have raised $132,000 with an impossibly low $50,000 target and have 41 days to go so are funded and liable to rake in much more. I'm tempted to "invest" $5 so I can see the investor-only messages as the project "progresses". Russell https://www.kickstarter.com/projects/ericclifton/orison-rethink-the-power-o= f-energy?utm_source=3Dwebsite&utm_medium=3Dbutton&utm_campaign=3Dorganic http://orison.energy/ --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .