Roanakh.com listed on US Department of Energy's Renewable Energy Resource site
Roanakh.com offers an easy to use, free online PV Design calculator that makes designing and estimating small PV systems a snap.
Roanakh.com is proud to be listed on the US Department of Energy’s Energy Efficiency and Renewable energy directory in the Building Technologies program Information Resources website at: http://apps1.eere.energy.gov/buildings/tools_directory/software.cfm/ID=525/pagename=alpha_list
To use the design calculator visit http://www.roanakh.com