I'm a proponent of solar power... studied it school and took another look at the potential at employing it here at my home in the PNW. The problem is the return on investment. Not sure what the solar index is in Indiana but it just doesn't compute where I live. NM... sure!!!
You're absolutely correct, the # of sun hours (solar index) and elevation play a huge part of your decision to make this investment. However, given the cost of the PV parts, one can acquire parts and pieces at a reasonable cost over time. If you do the work yourself, as we tend to do on this forum board, you can save yourself a huge amount of $$$. If you have a professional install your system, they have to use expensive, quality parts that makes the installation quicker. Quicker installation = more money. If you do a DIY installation, you can creatively do the same thing w/o having to spend a ton of money.
In my case, I acquired the necessary parts and pieces for a 6.5kw grid tie system over the course of three years. This included Ebay, Craigslist, dumpster diving (recycling wires, conduit pieces, etc) and whatever else it took to source all necessary items. I built the structure to support the PV panels (deck awning), took the homeowners electrician test at the local county office, got the permit, installed it and now reaping the benefits.
Just so everyone understands, you do not have to have a battery backup "off grid" system to enjoy the benefits of a PV system. In my case, the "battery" aka the local power grid is super reliable and we do indeed live in the boonies. The grid uptime here is over 99%.
Another thing to remember is the advent of micro-inverters which can cost as little as $150/each that can be used under each PV panel. So, rather than having to buy a large central inverter that weighs over 100lbs (like mine), you can increase your PV system over time by using one single with one single micro-inverter.
As we all know, the cost of utilities is going to increase and utility companies are wanting to get paid for the KWH's they're losing to guys like me. In CO, one of the local utility tried to pass a "charge to REC owners" for having a PV system on their house. Thankfully the PUC squashed it but I see that as a trend. If you're thinking of going solar, then do it now!!
Here's some info on IN renewable energy:
http://www.in.gov/oed/2616.htm
If we want to discuss this further, let's not hijack OP's thread anymore. Let's start a new thread!
