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Solar Financial Model

Solar Financial Module :


  • DTE and other utility company’s rates have been steadily increasing by about 6.7% a year, with a 30% jump in the last three years alone.
  • The pre-tax IRR over 25 years in most cases averages around 10-15% — far better and far safer than the stock market, bond market, money markets, and long-term CDs.
  • Since you only pay us the After-Rebate Price, without having to wait for your state rebate to process, you experience the savings right away!

The average homeowner will spend more than $100,000 on electric bills over 25 years.
Below is an overview of the costs associated with purchasing a solar system. The upfront installation costs are far cheaper in the long run than paying increasing electrical rates, and the value of your home increases more than the cost of the system with no additional property tax assessments.
Here’s how it works:
The net cost of your solar system will be determined by 3 variables:

  • Solar System Size (kilowatts)
  • DTE Rebates
  • 30% Federal Tax Credit

The following examples reflect the cost of solarizing an average home, which for us is about a 5 kilowatt DC solar system in Michigan. Depending on your electricity usage, this can either offset 100% of your bill or a majority of the most expensive electrical rate tiers.


Average System Size: 


Installed Price per Watt DC:


Gross System Cost:


Michigan Solar Initiative (DTE) Rebate:


30% Federal Tax Credit:




Net System Cost: