WARNING...SOAPBOX COMING OUT!!
Government rebates are generally a bribe for someone to make the wrong economic choice.
That's just my opinion...but people make the right choice, there's no need to induce them to do so. If people make what someone considers 'the wrong choice', there's a need to 'sweeten the deal' to get them to change their minds. If solar makes economic sense, by all means use it. If it doesn't, why would you use it?
Here near the steel mills, the EPA and environmentalists fought tooth and nail to fine and regulate the mills into treating their water and reusing it. Once the mills reluctantly installed the treatment plants, they discovered that it ended up saving them money (lots of it). A straightforward presentation to the mills showing how they could save money (and the environment) would have been much more friendly than shoving it down their throats and would not have created such animosity between the various groups.
If there's a good idea that makes sense, explain it and it will sell itself. If you need to bribe or threaten folks to agree, there's something fishy about it.
END OF RANT...SOAPBOX GOING AWAY!!!
We now return you to your original thread.
