I read some of their website, until my brain hurt with the amount of marketing-speak it had to translate.
I could be wrong, but by distilling all the verbiage on the website, with a rudimentary knowledge of physics, what I think they are doing is combining solar hot-water generation (via vacuum tubes) with photo-voltaic solar electricity generation. They are using the electricity generation to charge the car, probably store in battery backup for light/domestic use, and ramp up the hot water production on days when there is not enough sunshine. They probably also have a thermal store for heating, again, connected to both the solar panels.
A good idea to combine the two technologies, but not rocket surgery, as the website would have you believe.
(Although I could be wrong and they have discovered either perpetual motion or cold fusion, or a wormhole into another dimension with unlimited free energy provided by friendly aliens).