As someone who considers himself an environmentalist, I'd love
to get a solar array for my home. But I'm finding that it may
not make a lot of sense -- at least right now.  My wife and I
drive fairly fuel-efficient cars. Our house is lit almost
entirely with compact fluorescent and LED light bulbs. And our
entertainment center is connected to a power strip that turns
off all of our various game consoles and digital set-top boxes
whenever the TV is off.  So getting a solar array would be right
in character for us. And with solar panel prices plunging and
the sizable federal tax credit still available, now would seem a
good time. With many of my neighbors installing systems, I
figured I'd start shopping for one also.  But I quickly
discovered our house is far from an ideal candidate for a solar
system. First, we just don't use a lot of electricity. In fact,
in the more than two years since we moved into our house, our
electrical bill has topped $40 in a month only once.  I'd like
to claim credit for that, but I