Photovoltaic or solar permits and guidelines | Department of Planning
The County of Santa Clara and SolarApp+ provide near instant PV Solar permits for residential rooftop systems. Are you looking for ways to reduce energy consumption, reduce greenhouse gas
PVWatts Calculator
Estimates the energy production and cost of energy of grid-connected photovoltaic (PV) energy systems throughout the world. It allows homeowners, small building owners, installers and manufacturers to
Viewer | USPVDB
The U.S. Solar Photovoltaic Database (USPVDB) provides the locations and array boundaries of U.S. front-of-the-meter, photovoltaic facilities, direct current capacity of 1 megawatt or more, that became
Solar PV Panels
Solar PV is growing our economy with jobs in the trades, construction, engineering, supply chain management, project management and sales. Lake County residents, schools and businesses are
Project Sunroof
Project Sunroof is a solar calculator from Google that helps you map your roof''s solar savings potential. Learn more, get an estimate and connect with providers.
Solar Manufacturing Map
This map provides information about all of the solar photovoltaic (PV) manufacturing facilities in the United States and how they contribute to the solar supply chain.
Solar State By State – SEIA
Explore the latest solar market insights and policy updates in all 50 states and Washington, D.C. All market data is current through Q3 2025. California leads as the top solar state. With over 54 GW of
Global Solar Atlas
Start exploring solar potential by clicking on the map. Select sites, draw rectangles or polygons by clicking the respective map controls. Calculate energy production for selected sites. The Global Solar
U.S. Photovoltaic Database
The U.S. Large-Scale Solar Photovoltaic Database provides the locations and array boundaries of U.S. photovoltaic facilities, with capacity of 1 megawatt or more.
Residential Solar Panel Requirements
When installing photovoltaic panels on one- and two-family homes, it''s important to understand the requirements for access pathways and the requirements for setback from the ridge,