Re: Anyone out there on Solar?
There are at least three kinds of solar power installations.
1. You have access to commercial power, but want to take advantage of the tax credits, and will feed excess produced power back to the commercial power company, often at a favorable rate. You will not have batteries and inverters to power your location when there is no commercial power.
That kind of installation can pay off in a few years.
2. You don't have any commercial power, and it will be very expensive to pull it to your location. You will need large battery banks and inverters for utility power.
That kind of installation <span style="font-style: italic">may</span> pay off in a few years, depending on how expensive commercial power access would be, but, as Carnivore mentions, periodic battery replacement is both required and expensive.
3. You will have both commercial power inexpensively available, and batteries and inverters for power when no commercial power is available.
That installation cannot pay off. If you want backup AC power, buy a generator.
There's lots of information on the web about these issues. This is <span style="font-weight: bold"><span style="font-style: italic">not</span></span> the place to do that research.