Electricity rates can rise between 2-11% annually, according to the Energy Information Administration, making budgeting unpredictable. In 2007, Illinois electricity rates jumped drastically for consumers, for most 30-60%, for some almost 100%, after a ten-year rate freeze expired. For many, this came as a shock and caused consumers to cut back on other necessities to compensate. With solar power, you lock in your utility rates. No more surprises.

The average residential use of electrical power in Illinois is about 10,000 kwh/year. The installation of a solar power system to produce 50% of that electrical demand would require a roof space of 400 square feet and an estimated mid-range system and installation cost approximately $24,000.