The Dual-Value Payback Period
In states without SREC programs or grants, the ROI is based purely on avoiding utility bills. In Delaware, you achieve "dual value." First, you wipe out your expensive Delmarva Power or DEC bill. Second, you sell the SRECs your system generates on the open market. When you combine this income stream with the DGEP grant and the 30% Federal Tax Credit, the average payback period for a Delaware solar system drops to an incredible 6 to 8 years. After this breakeven point, your system produces decades of pure profit.





