High capacity battery pods and UPSs for long term deployments

With harsh Arctic conditions prohibiting easy, year-round access to subsea assets due to surface ice and weather conditions comes the need to create subsea monitoring technologies capable of reliably surviving long term deployments with little or no intervention. High capacity battery pods and UPSs provide an ideal power delivery method for subsea systems when surface ice and inclement weather precludes the use of buoys or other surface based options. To provide continuous monitoring of subsea conditions throughout the seasons where access is limited, a high capacity battery pod or UPS can be used as the base of a moored array. The battery pod or UPS would act as the primary source when the site is inaccessible, allowing the continued polling and control of a variety of systems and sensors throughout the year. Logged data can then be relayed to a shore station or other common data management point. This paper focuses on high capacity battery pod and UPS applications specific to an Arctic environment where long term monitoring can be enhanced with the use of an in-situ energy reservoir. In addition, example systems and applications are presented.