Renewable Energy Manufacturing Companies in Maine

Maine has approximately 1,600 manufacturing establishments and 52,000 manufacturing employees. Maine's manufacturing heritage includes Bath Iron Works naval shipbuilding, a robust wood products industry, and growing specialty food manufacturing.

Maine contributes to the national renewable energy manufacturing landscape. Renewable energy manufacturing includes companies that produce solar panels, wind turbine components, energy storage systems, inverters, and balance-of-system equipment. The Inflation Reduction Act has catalyzed a massive buildout of US renewable energy manufacturing, with dozens of new factories announced for solar cells, wind turbine blades, battery storage, and related components.

Solar Panel Manufacturers: Companies producing solar cells and modules, from silicon ingot processing to finished panel assembly.

Wind Turbine Component Makers: Manufacturers of blades, towers, nacelle components, gearboxes, and generators for onshore and offshore wind.

Battery Storage Manufacturers: Companies producing utility-scale and commercial battery energy storage systems and components.

Inverter & Power Electronics: Manufacturers of string, central, and microinverters plus power conversion equipment for renewable installations.

Mounting & Racking Systems: Companies producing steel and aluminum mounting structures for ground-mount and rooftop solar installations.

Major industrial centers in Maine include Portland, Lewiston, Bangor, and Bath. These cities have concentrations of manufacturers across sectors including shipbuilding & marine manufacturing, wood products manufacturing, and food processing manufacturing.