Soft costs can be pretty tough. The cost of solar installations can be generally separated into "hard" costs — representing primary components such as modules, racking, inverters — and soft costs including legal, permitting, and financing. While the former group — particularly modules — have dropped dramatically over the last several years, the latter have not. According to a recent NREL analysis, these costs represent roughly 30% of both residential and utility installations (slightly less for commercial-host systems). See Figure 1 below.