This is what a colleague of mine in Germany has just installed in his new build home. It looks like a very large water cylinder and is about 5 feet high. It hums like a good un ! There must be some big rectification going on somewhere within it.
He had a grant from the local government (Munich) to pay a good chunk of it. I tease him that no one needs to charge the iPad that quickly and he is once again over-egging it.
Apparently it can get enough from the solar panels on his roof to equal out his home for the day. This is calculated using local geographic sun information to provide the panel size needed.
Must be a hell of an iPad.
