Abstract: A density engine includes an object movably positioned in a host liquid, the object having a density less than that of host liquid. An injector injects gas below the object creating a rising fluid region having a density less than that of the object. The object is not buoyant in the rising fluid region. An electrical generator is coupled to the object to generate electrical energy upon movement of the object. A biofuel production facility receives gas from the density engine and produces a biofuel through a biological process of a living organism that utilizes the gas. A consolidated energy production and storage system includes a gas sequestration facility, a density engine, and a biofuel production facility located together on a contiguous plot of land. Windmills and solar collectors may be located on the plot of land.

Abstract: A method for generating energy from low-density fluids is provided. The method includes placing a first object in a first portion of fluid having a first density, injecting low-density fluids into the first portion of fluid in order to reduce the density thereof to a second density less than the density of the first object and thereby induce buoyancy-dependent translation of the first object in response thereto, and generating energy based upon buoyancy-dependent translation of the first object. Related apparatuses and systems are also disclosed.

Abstract: A method for generating energy from low-density fluids is provided. The method includes placing a first object in a first portion of fluid having a first density, injecting low-density fluids into the first portion of fluid in order to reduce the density thereof to a second density less than the density of the first object and thereby induce buoyancy-dependent translation of the first object in response thereto, and generating energy based upon buoyancy-dependent translation of the first object. Related apparatuses and systems are also disclosed.

Abstract: A method for generating energy from low-density fluids is provided. The method includes placing a first object in a first portion of fluid having a first density, injecting low-density fluids into the first portion of fluid in order to reduce the density thereof to a second density less than the density of the first object and thereby induce buoyancy-dependent translation of the first object in response thereto, and generating energy based upon buoyancy-dependent translation of the first object. Related apparatuses and systems are also disclosed.

Abstract: A method for generating energy from low-density fluids is provided. The method includes placing a first object in a first portion of fluid having a first density, injecting low-density fluids into the first portion of fluid in order to reduce the density thereof to a second density less than the density of the first object and thereby induce buoyancy-dependent translation of the first object in response thereto, and generating energy based upon buoyancy-dependent translation of the first object. Related apparatuses and systems are also disclosed.

Abstract: An apparatus for generating energy is provided. The apparatus includes an object for being placed in a fluid. An electrical generator is coupled to the object and is configured for generating electricity upon translation of the object. A gas injector is provided for injecting gases into the fluid to lower the density thereof to less than the density of the object and thereby induce translation of the object to generate electricity by the electrical generator.

Abstract: A photovoltaic device having a front and back orientation and comprising: a crystalline substrate having a resistivity greater than about 0.01 ohm-cm; and an epitaxy thin-film layer in front of said substrate, said thin-film layer contacting said substrate in at least one region to define a p-n junction.

Abstract: A photovoltaic device having a front and back orientation and comprising: a crystalline substrate having a resistivity greater than about 0.01 ohm-cm; and an epitaxy thin-film layer in front of said substrate, said thin-film layer contacting said substrate in at least one region to define a p-n junction.

Abstract: A furniture member cushion includes an exterior cover having opposed walls defining an interior cavity and a cushion fill opening. A first slit is created through the cover proximate to the cushion fill opening. A foam cushion member is disposed through the cushion fill opening and substantially fills the interior cavity. A second slit is created in the cushion member, and aligned with the first slit when the cushion member is disposed in the interior cavity. A plurality of seams are sewn through the opposed walls and the cushion member, at least one aligned with the first and second slits.