This map includes information gathered from public sources by the U.S. Department of Energy and shows announced supply-chain investments across clean energy technologies since January 21, 2021. It includes reported investments and potential jobs as publicly announced. Many facilities are conditional on financing, funding, site control, and other facts. Inclusion on this map does not guarantee that these facilities will come online as reported.

​​​​​​​Technology category definitions:

Solar includes solar panels, solar panel parts, and other solar hardware. Announcements cover the length of the solar supply chain from the production of solar polysilicon, to the tools needed to process that polysilicon into silicon wafers, to the glass, plastic, and other materials needed to assemble a solar panel, all the way to the trackers and inverters needed to mount and connect solar modules to the electrical grid. Only announcements of manufacturing for terrestrial solar applications are included, and announcements for mixed-use technologies (such as metallurgical grade silicon production or the manufacture of grid transformers) were only included if the announcement cited solar as the intended application of the products. 

Batteries includes minerals extraction and processing, battery component manufacturing, battery cell manufacturing, and battery pack manufacturing. Minerals extraction and processing includes formally announced mines for lithium, cobalt, nickel, manganese, graphite, and silicon, along with processing facilities to convert these raw minerals to battery-grade materials. Battery component manufacturing includes facilities to produce cathodes, anodes, electrolytes, separators, and other battery precursors. Battery cell and pack manufacturing includes commercial- and pilot-scale manufacturing to produce electrochemical energy storage.

EV Manufacturing includes electric vehicle assembly, electric vehicle components, and electric vehicle chargers. Announcements are tied to manufacturing of equipment and vehicles, not deployment. The following vehicle types are included: light-, medium- and heavy-duty vehicles; non-road vehicles / mobile machinery; motorcycles; low-speed EV; and aircraft. Most announcements are in the on-road vehicle space. Only battery electric vehicles and plug-in hybrid electric vehicles are included. Investments in component manufacturing were only included if it is relevant for the electric vehicle drivetrain; body/interior/HVAC are not included. EV chargers include manufacturing of any vehicle chargers, including Level 2 AC chargers, DC Fast Chargers, and wireless charging.

Offshore wind includes manufacturing, port, and vessel construction. Announcements cover the breadth of the offshore wind component supply chain from the production of turbine blades to the secondary steel used on foundations, to the ports and vessels needed for installation, maintenance, and operation of offshore wind energy facilities.