A carbon dioxide cycle power generation system includes a first carbon dioxide storage configured to store a first portion of carbon dioxide and a second carbon dioxide storage configured to store a second portion of the carbon dioxide. The carbon dioxide cycle power generation system also includes a generator configured to generate electrical power based on a flow of at least part of the carbon dioxide between the first and second carbon dioxide storages. The carbon dioxide cycle power generation system is configured to cycle between different underwater depths in order to employ water pressure and/or water temperature in creating the flow of the at least part of the carbon dioxide through the generator. The second carbon dioxide storage includes an annular region surrounding a central region, where the annular region has a variable internal volume configured to receive at least part of the second portion of the carbon dioxide.

Provided is an energy storage system for a marine vessel. The energy storage system includes a battery pack and a storage container (i) configured for housing the battery pack and other components and (ii) including an electrical interface for electrically coupling the battery pack to the vessel. The energy storage system also includes an air blast cooling system (i) mountable to a first section of the container and (ii) for cooling the battery pack and an air conditioning system configured for cooling the other components.

The present invention generally provides a power port device for mounting a monopod. The power port device includes power port typical of a marine vessel, such as a bass boat or speed boat. The power port device would connect to a rail affixed to the side of a kayak. An adjustable mount can be inserted between the power port device and the rail to adjust the angle of the power port device. The monopod can then provide power for mobile accessories, such as cameras and smart phones. The monopod may be fitted with extendable, bendable arms for mounting additional cameras or other electronic devices or for providing additional accessories. The monopod could also include other power outlets, including universal serial bus (USB) or standard power outlet ports.

The present invention generally provides an anchor cap or a motor cap for mounting a monopod. The cap includes a navigation light power port typical of a marine vessel, such as a bass boat or speed boat. The cap would connect to the top of an anchor affixed to the marine vessel. The monopod can then provide power for mobile accessories, such as cameras and smart phones. The monopod may be fitted with extendable, bendable arms for mounting additional cameras or other electronic devices or for providing additional accessories. The box could also include other power outlets, including universal serial bus (USB) or standard power outlet ports.

A system for a boat includes a first guideway installed under a main deck of the boat, a first battery pack coupled to the first guideway under the main deck, and a first actuator configured to move the first battery pack along the first guideway. A controller is electrically and/or signally coupled with the first actuator. A user input device is electrically and/or signally coupled with the controller. The controller is configured to control the first actuator to move the first battery pack along the first guideway in response to an input to the user input device so as to relocate the weight of the first battery pack under the main deck.

The present invention generally provides a power port device for mounting a monopod. The power port device includes power port typical of a marine vessel, such as a bass boat or speed boat. The power port device would connect to a rail affixed to the side of a kayak. An adjustable mount can be inserted between the power port device and the rail to adjust the angle of the power port device. The monopod can then provide power for mobile accessories, such as cameras and smart phones. The monopod may be fitted with extendable, bendable arms for mounting additional cameras or other electronic devices or for providing additional accessories. The monopod could also include other power outlets, including universal serial bus (USB) or standard power outlet ports.

A boat stabilizer system includes a first gyro stabilizer configured to be arranged inside a hull, a first fin stabilizer including a fin configured to be arranged outside the hull and move relative the hull, and a power transmission interconnecting the first gyro stabilizer and the first fin stabilizer. The power transmission is arranged to transfer energy derived from precession torque of the first gyro stabilizer to the first fin stabilizer to actuate the fin.

A carbon dioxide cycle power generation system includes a first carbon dioxide storage configured to store a first portion of carbon dioxide and a second carbon dioxide storage configured to store a second portion of the carbon dioxide. The carbon dioxide cycle power generation system also includes a generator configured to generate electrical power based on a flow of at least part of the carbon dioxide between the first and second carbon dioxide storages. The carbon dioxide cycle power generation system is configured to cycle between different underwater depths in order to employ water pressure and/or water temperature in creating the flow of the at least part of the carbon dioxide through the generator. The second carbon dioxide storage includes an annular region surrounding a central region, where the annular region has a variable internal volume configured to receive at least part of the second portion of the carbon dioxide.

A carbon dioxide cycle power generation system includes storage collectively storing portions of carbon dioxide liquid and gas and a transfer connection selectively directing flow of the carbon dioxide through a turbine. The system cycles between different seawater depths in order to employ at least one of seawater pressure and seawater temperature in creating the carbon dioxide flow. Inlet/outlet control valves on variable volume tanks, positioned below movable pistons within the respective tank, selectively allow seawater into or out of a lower portion of the respective tank below the piston to pressurize the carbon dioxide therein relative to the carbon dioxide within the other tank when at depth rather than near the surface. Inhibited versus uninhibited heat transfer between storage portions and the seawater allows different seawater temperatures at depth and near the surface to create the carbon dioxide flow. Acoustic communications may be driven concurrent with the turbine.

The present embodiments relate to launch and recovery systems for a remotely operated vehicle. The embodiments eliminate or minimize the need for load lines, and provide virtually unlimited excursion distances for remotely operated vehicles, limited only by the amount of tether available at the launch point. Further, the embodiments allow for extended deployments of ROVs by allowing recharging of a tether climbing component while submerged. The system can include a launch and recovery assembly, a tether climbing component, and a remotely operated vehicle attached to a remotely operated vehicle tether. The launch and recovery assembly deploys the remotely operated vehicle and the tether climbing component overboard, and the remotely operated vehicle is configured for tethered operation while maintaining the tether climbing component at a desired depth.