A solar electric pump-out boat for removing human waste. The pump-out boat may include a boat hull, wherein the boat hull may include a bow, a stern, and a self-draining sole disposed therein. The pump-out boat may further include a holding tank disposed within the hull underneath the self-draining sole for collecting waste. The pump-out boat may further include a console disposed approximately center of, and on a top surface of the self-draining sole. The pump-out boat may further include a solar panel for absorbing sunlight to convert into electrical power. The pump-out boat may further include a pump disposed within the console. The pump-out boat may further include a battery connected to a motor, the pump, and the solar panel, such that the solar panel charges the battery to provide the electrical power to operate the pump and the motor.

A solar electric pump-out boat for removing human waste. The pump-out boat may include a boat hull, wherein the boat hull may include a bow, a stern, and a self-draining sole disposed therein. The pump-out boat may further include a holding tank disposed within the hull underneath the self-draining sole for collecting waste. The pump-out boat may further include a console disposed approximately center of, and on a top surface of the self-draining sole. The pump-out boat may further include a solar panel for absorbing sunlight to convert into electrical power. The pump-out boat may further include a pump disposed within the console. The pump-out boat may further include a battery connected to a motor, the pump, and the solar panel, such that the solar panel charges the battery to provide the electrical power to operate the pump and the motor.

A fluid moving apparatus includes an electric motor having a rotor and a stator and a propeller. The rotor rotates relative to the stator on an axis to generate a rotational output. The rotational output is provided to the propeller to power the marine propulsion apparatus. The stator includes one or more coils configured to power rotation of the rotor. The one or more coils extend circumferentially around and can be coaxial on the axis. A portion of a housing of the motor extends into the aquatic environment to facilitate heat dissipation.

A fluid moving apparatus includes an electric motor having a rotor and a stator and a propeller. The rotor rotates relative to the stator on an axis to generate a rotational output. The rotational output is provided to the propeller to power the marine propulsion apparatus. The stator includes one or more coils configured to power rotation of the rotor. The one or more coils extend circumferentially around and can be coaxial on the axis. A portion of a housing of the motor extends into the aquatic environment to facilitate heat dissipation.

A hull assembly for a pontoon boat includes a hull extending in a longitudinal direction between a front end and a rear end. A first thruster assembly is attached to a first lateral side of the hull. A second thruster assembly is attached to a second lateral side of the hull. The first and second thruster assemblies include respective thrust units that are each movable between a deployed position and a stowed position.

A modular hybrid propulsion unit is disclosed that is mountable to a watercraft. According to an example, the modular hybrid propulsion unit includes a housing configured to fit within a complementary housing receiver on a topside of the watercraft, and a rotational output coupling configured to rotationally engage with a rotational input coupling for a propeller of the watercraft. The propulsion unit further includes an electric motor within the housing, the electric motor having a motor shaft connected to the rotational output coupling for providing an electrically powered rotational input to the rotational output coupling. The propulsion unit further includes a crank having one or more crank arms. The crank is connected to the rotational output coupling for providing a human powered rotational input to the rotational output coupling independent of the electrically powered rotational input by the electric motor.

A modular hybrid propulsion unit is disclosed that is mountable to a watercraft. According to an example, the modular hybrid propulsion unit includes a housing configured to fit within a complementary housing receiver on a topside of the watercraft, and a rotational output coupling configured to rotationally engage with a rotational input coupling for a propeller of the watercraft. The propulsion unit further includes an electric motor within the housing, the electric motor having a motor shaft connected to the rotational output coupling for providing an electrically powered rotational input to the rotational output coupling. The propulsion unit further includes a crank having one or more crank arms. The crank is connected to the rotational output coupling for providing a human powered rotational input to the rotational output coupling independent of the electrically powered rotational input by the electric motor.

A solar boat with an adjustable angle of a solar panel of the present disclosure comprises: a cabin unit; a boat body provided below the cabin unit and including a first fixing unit and a second fixing unit; a solar panel unit provided above the cabin unit and configured to convert solar energy into electrical energy; a first pole provided with a first connector at an upper end thereof and connected to a front left bottom of the solar panel unit via the first connector, and provided with a second connector at a lower end thereof and connected to the boat body via the second connector; a second pole provided with a third connector at an upper end thereof and connected to a front right bottom of the solar panel unit via the third connector, and provided with a fourth connector at a lower portion thereof and connected to the boat body via the fourth connector; a third pole provided with a fifth connector at an upper end thereof and connected to a rear left bottom of the solar panel unit via the fifth connector, provided with a sixth connector at a lower portion thereof and connected to the boat body via the sixth connector, and provided with a seventh connector below the sixth connector and connected to an upper end of a first adjustment unit via the seventh connector; a fourth pole provided with an eighth connector at an upper end thereof and connected to a rear right bottom of the solar panel unit via the eighth connector, provided with a ninth connector at a lower portion thereof and connected to the boat body via the ninth connector, and provided with a tenth connector below the ninth connector and connected to an upper end of a second adjustment unit via the tenth connector; the first adjustment unit connected to the seventh connector at an upper end thereof, provided with an eleventh connector at a lower end thereof and connected to the first fixing unit via the eleventh connector, and being adjustable in its length; and the second adjustment unit connected to the tenth connector at an upper end thereof, provided with a twelfth connector at a lower end thereof and connected to the second fixing unit via the twelfth connector, and being adjustable in its length, and has the effects that can perform efficient solar power generation according to the surrounding environment or the direction of sunlight by enabling the angle adjustment of the solar panels installed on the roof of the solar boat, and that can reduce the volume of the solar boat when anchored, and can resolve the problem of taking up a lot of space by the fixed solar panels when anchored by enabling the angle adjustment of the solar panels installed on the roof of the solar boat and the storag

A solar boat with an adjustable angle of a solar panel of the present disclosure comprises: a cabin unit; a boat body provided below the cabin unit and including a first fixing unit and a second fixing unit; a solar panel unit provided above the cabin unit and configured to convert solar energy into electrical energy; a first pole provided with a first connector at an upper end thereof and connected to a front left bottom of the solar panel unit via the first connector, and provided with a second connector at a lower end thereof and connected to the boat body via the second connector; a second pole provided with a third connector at an upper end thereof and connected to a front right bottom of the solar panel unit via the third connector, and provided with a fourth connector at a lower portion thereof and connected to the boat body via the fourth connector; a third pole provided with a fifth connector at an upper end thereof and connected to a rear left bottom of the solar panel unit via the fifth connector, provided with a sixth connector at a lower portion thereof and connected to the boat body via the sixth connector, and provided with a seventh connector below the sixth connector and connected to an upper end of a first adjustment unit via the seventh connector; a fourth pole provided with an eighth connector at an upper end thereof and connected to a rear right bottom of the solar panel unit via the eighth connector, provided with a ninth connector at a lower portion thereof and connected to the boat body via the ninth connector, and provided with a tenth connector below the ninth connector and connected to an upper end of a second adjustment unit via the tenth connector; the first adjustment unit connected to the seventh connector at an upper end thereof, provided with an eleventh connector at a lower end thereof and connected to the first fixing unit via the eleventh connector, and being adjustable in its length; and the second adjustment unit connected to the tenth connector at an upper end thereof, provided with a twelfth connector at a lower end thereof and connected to the second fixing unit via the twelfth connector, and being adjustable in its length, and has the effects that can perform efficient solar power generation according to the surrounding environment or the direction of sunlight by enabling the angle adjustment of the solar panels installed on the roof of the solar boat, and that can reduce the volume of the solar boat when anchored, and can resolve the problem of taking up a lot of space by the fixed solar panels when anchored by enabling the angle adjustment of the solar panels installed on the roof of the solar boat and the storag

A battery pack (e.g., a battery pack for marine environments) can include a lower enclosure having an upper wall and defining a cavity, a plurality of battery cells positioned within the cavity, a radiator assembly positioned above the upper wall of the lower enclosure, a vent in the upper wall of the cavity, and/or a valve configured to selectively facilitate fluid communication between the cavity and the radiator assembly via the vent. In some embodiments, the valve is configured to open in response to increased pressure in the cavity resulting from a thermal runaway event. In some embodiments, the radiator is configured to create a tortuous path and collect flammable particulates from the thermal runaway event.