Manufacturer of CIGS panels, ceased operations.

Specialized in cadmium telluride (CdTe) technology, filed for bankruptcy.

Focused on emitter wrap-through silicon technology, acquired by Applied Materials

Produced thin silicon solar panels, closed operations.

Known for solar roofing systems, acquired by Quercus Trust.

Manufacturer of PV modules, went bankrupt.

Exited the solar panel business but remains active in other sectors.

Specialized in crystalline silicon on glass technology, closed by Suntech.

Solar panel manufacturer, used monocrystalline solar cell technology for enhanced efficiency.

Focused on cell interconnect technology, delisted from the TSX exchange.

Specialized in amorphous silicon (a-Si) technology, went bankrupt.

Focused on amorphous silicon (a-Si) technology, went bankrupt.

Specialized in drawn silicon technology, filed for bankruptcy in 2011.

Focused on a-Si roll-to-roll BIPV solutions, ceased operations.

Known for dye-sensitized solar cells (DSCs), bankrupt in 2012 but re-emerged as G24i Power.

Manufacturer of CIGS technology, closed operations.

Manufacturer of solar panels focused on residential markets, closed operations.

Specialized in concentrating photovoltaic (CPV) systems, ceased operations.

Focused on copper indium gallium selenide (CIGS) technology, acquired but ultimately discontinued.

Operated a polysilicon production facility, shut down its Idaho polysilicon production plant.

Focused on amorphous silicon technology, went bankrupt.

Known for organic photovoltaic (OPV) technology, filed for bankruptcy.

Manufactured high-efficiency solar panels.

Specialized in heterojunction (HJT) solar panels.

Manufacturer of CIGS solar modules, went bankrupt.

Specialized in amorphous silicon (a-Si) technology, closed operations.

Global electronics giant, produced residential solar panels and storage. The company continues to sell branded panels manufactured by third parties.

Produced a-Si panels, went bankrupt.

Manufacturer of silicon wafers, went bankrupt.

Focused on plug-and-play PV systems, acquired by SunEdison.

Merged into Panasonic Solar Division in 2010.

Manufacturer of building-integrated photovoltaics (BIPV), went bankrupt and was acquired.

Manufacturer of crystalline silicon solar panel (c-Si PV) and thin-film solar panels.

Exited the crystalline silicon (c-Si) business, leading to closure.

Specialized in depositing silane onto free-form metallurgical-grade silicon substrates, closed.

Backing away from a-Si production, significantly reduced operations.

Focused on amorphous silicon panels, went bankrupt.

Developer specializing in solarthermal projects, went bankrupt.

Manufacturer of solar inverters and panels.

A leader in crystalline silicon technology, faced significant challenges leading to its exit.

Notable manufacturer of crystalline silicon panels, went bankrupt.

Manufacturer of CIGS BIPV panels, went bankrupt.

Known for its innovative cylindrical solar panels, filed for bankruptcy due to high production costs.

joint venture that faced bankruptcy, previously produced solar panels in collaboration with other firms.

A manufacturer of high-efficiency solar panels that went bankrupt.

Known for solar dish engine technology, went bankrupt.

Solar panel and inverter manufacturer and technology innovator, filed for bankruptcy in 2024.

Specialized in amorphous silicon panels, went bankrupt.

Once one of the largest manufacturers of solar panels, it filed for bankruptcy due to financial challenges.

Manufacturer of solar panels, ceased operations.

Solar panel manufacturer and installer.

Manufacturer of cadmium telluride (CdTe) thin film solar panels.

A pioneer in thin-film solar technology, known for flexible solar panels, ceased operations due to declining demand.

Focused on gallium arsenide (GaAs) solar technology, closed operations.

Focused on solar products, exited the market after significant challenges.