Commercial Grid-Tie

Commercial grid-tie systems.

19.25 kW grid-tie installation on local convenience store

9.9 kW grid-tie installation on local business

Here is a chart of some "average" installed costs, rebates and tax credits of various sized commercial grid-tie systems installed under the Black Hills Energy program.

System Size	15 kW	25 kW	50 kW	100 kW
Average Cost¹	$105,000	$172,500	$337,500	$675,000
Utility Rebate²	$30,000	$50,000	$100,000	$200,000
After Rebate	$75,000	$122,500	$237,500	$475,000
Fed Tax Credit³	$22,500	$36,750	$71,250	$142,500
Final Cost	$52,500	$85,750	$166,250	$332,500

1. Average system cost is based on roof-top flush-mount installation

2. Utility rebate assumes grid-tie installation within Black Hills (Aquila) or Xcel service territory. Current rebates paid are $2/watt equipment rebate and $115.00/mWhr REC annual production payment. Array installation must be within 10% of calculated system output to qualify for full rebate amount.

3. Current commercial Federal Income Tax Credit is 30% of "after rebate" cost, with no cap.