At this geographic location, in order to generate 100,000 kW of electricity per year, you would need a 78 kW photovoltaic system installed.

Cost Analysis
Using a typical photovoltaic installed cost of $6.50/Watt (this cost can vary depending on many variables specific to your site), the total installed cost of this system should be approximately $507,000.00.

Business Energy Investment Tax Credit (ITC) $152,100.00
The credit is equal to 30% of expenditures, with no maximum credit. Eligible solar energy property includes equipment that uses solar energy to generate electricity, to heat or cool (or provide hot water for use in) a structure, or to provide solar process heat. Hybrid solar lighting systems, which use solar energy to illuminate the inside of a structure using fiber-optic distributed sunlight, are eligible. Passive solar systems and solar pool-heating systems are not eligible.
Tax credit for this system is likely to be $152,100.00

Modified Accelerated Cost-Recovery System (MACRS) $25,350.00
The MACRS allows a corporation to depreciate the cost of the solar panels and associated equipment and installation in five years.
The depreciated cost per year of this system is $101,400.00. Assuming a tax rate of 25%, the savings would be $25,350.00.

How many years to pay off the photovoltaic system?