A university spent $1.8 million to install solar panels atop a parking garage. These panels will have a capacity of 500 kw, have a life expectancy of 20 years and suppose the discount rate is 10%. a. If electricity can be purchased for costs of $0.10 per kwh, how many hours per year will the solar panels have to operate to make this project break even?

Please note: Can you solve in Microsoft Excel? Please show formula as well