Across a variety of offshore industries, there is a push to reduce vessel hours and offshore man hours to reduce cost, risk and weather dependency. Reduced cost of battery capacity and increased 4G and satellite communication infrastructure opens up the opportunity to operate systems located offshore, remotely from shore. In addition to reduced cost and risk, an adaptation to remote operation can greatly increase utilization of equipment, providing for 24/7 availability, during all weather conditions.

For systems consuming an average of 500W or less, power supply in the form of battery packs in combination with PV panels, can provide for sufficient uptime and availability. However, offshore operators are looking to deploy more conventional systems offshore for resident, autonomous operation, prompting the need for high power energy supply, a reliable, low latency and high capacity communication link to shore, as well as cost efficient installation methods.


BOLT Sea Power develops offshore power units that delivers all three capabilities. Our onboard winch provides for power production, station keeping and power transfer subsea. The winch, already operated as a heave compensated anchor system, also has the inherent capability to install equipment on the sea floor, allowing for a cost efficient installation method.


Most offshore industries have adapted to the use of ROVs and AUVs for inspection, maintenance and repair work. Traditionally operated from vessels hovering above, it makes for a vessel- and labor intensive operation that is also sensitive to weather. To reduce cost, there is a drive to adapt operations to use of underwater inspection drones (UIDs) with docking stations located subsea to allow UIDs to recharge and communicate to shore. A number of industry players are developing these drone docks and several field tests are underway at this point. However, the need for power and communication infrastructure puts a constrain on where docks can be located.

A power unit from BOLT Sea Power will feed power for battery charging and provide a communication link to shore, enabling true and unconstrained remote operation regardless of available infrastructure.

Based on the more than 25.000 hour of offshore operation of our BOLT Lifesaver power buoy, Fred. Olsen Ltd. is currently configuring a product where we fit one Power Take-Off winch to a 5m diameter buoy. At 8-13tons weight, it allows for fast install and recovery and provides power and communication subsea at any depths for up to 12 months without maintenance.

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