>Power meters don't have to be designed to measure current both ways.
If you have solar, you will have a meter that spins both ways. That's sort of exactly the entire point of having a grid-tied solar system - to run the meter backwards during peak hours, to reduce your kwh consumption.
Most modern power companies will do even better. My system has a smart meter that reports power consumption/generation wirelessly to PG&E on a continuous basis. They know exactly how much I'm producing, and I know they know since I can access it from their web site.
> Just because someone makes something does not mean it's compatible with the grid. If someone hacks together some random garage equipment (and not some government certified power controller box) and plugs it into the grid, that grid is now touching everyone else's house nearby.
Which is why they inspect and approve only certain equipment that has been demonstrated to be compatible with their grid.
>What I am saying is it should be very clear what the requirements of the grid are
While your objections would be perfectly valid for a solar system going up in Somalia, these issues have actually been address for a long ass time around here.