If you don't have the capital to purchase polycrystalline solar panels, then you will need to investigate financing options. Home mortgages remain the best option. If you do not qualify for a home mortgage, look for a standard bank loan. Unfortunately, 2008's credit crunch has caused banks to tighten their purse strings. Wall Street analysts hope that the recent injection of federal funds into the banking industry should loosen up the credit freeze by mid-2009.

If you can't afford a high-end high frequency inverter solar panel system, shop for a crystalline silicon-based module system. While gallium arsenide is the standard ingredient grown specifically to produce solar cells, there is a greater supply of silicon which makes your investment less expensive.

Once you decide on the kind of solar panels you'll purchase and find a way to finance it, you need to assess how many solar panels you'll need. You also have to determine the size of the inverter necessary. (An inverter converts the power that is stored in solar panels into AC power for your home.) Therefore, you will need to do a top to bottom assessment of your average energy consumption per month. Even if you don't go through with the purchase this step will prove worthwhile because it gives you a chance to assess your energy consumption and cut down use wherever possible.

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