The projects, which are funded by the Department's SunShot Initiative, will help reduce the "soft costs" associated with the solar energy including installation, permitting, and connecting to the grid.
SunShot initiative aims to make solar power affordable and accessible by supporting research and development efforts by non-profit organizations, universities, private industry, and the national laboratories.
Solar Energy Technologies Office director Dr Charlie Gay said: "Soft costs have been a pervasive barrier to widespread solar energy in the US.
"Finding new ways to cut these costs remains critical in accelerating solar deployment nationwide and making solar affordable for all Americans."
Of the 17 projects, nine projects will focus on how the solar industry can sustain and accelerate the growth.
This is achieved by understanding the motivations and factors that influence the technology adoption process, particularly in low- and moderate-income communities, the Energy Department said.
The remaining eight projects will focus on tackling solar market challenges through better strategic energy and economic planning.
These eight projects will assist states in effectively adapting solar by providing technical and analytical assistance to help them meet their renewable energy goals.
