Photovoltaic installations for generating electricity (photovoltaic power plants); Electric control devices for energy management; Photovoltaic apparatus for converting solar radiation to electrical energy.

Photovoltaic installations for generating electricity (photovoltaic power plants); Electric control devices for energy management; Photovoltaic apparatus for converting solar radiation to electrical energy.

Ocean environmental control system, comprised of a pumping valve connected by flexible tube to a buoy, that serves to pump water from lower depths to the ocean surface

Ocean environmental control system, comprised of a pumping valve connected by flexible tube to a buoy, that serves to pump water from lower depths to the ocean surface