The Open PV Project
NREL's Open PV Project application is no longer available. However, distributed photovoltaic (PV) installation data can be obtained from Lawrence Berkeley National Laboratory's Tracking the Sun report.
The Tracking the Sun report is an annual effort that collects data from installers and other PV organizations. It can be used to identify the general locations and attributes of new distributed PV installations.
The Open PV Project was a real-time tracker of cost-per-watt for distributed PV installations.