Ocean Harvesting have designed a hydraulic collection system with energy storage technology for wave energy arrays. Although many advantages of the OHT energy storage system were identified compared to technologies such as mechanical PTO systems, hydraulic PTOs with fixed displacement cylinders and hydraulic accumulators, and hydraulic collectors of power from WECs to a central unit, batteries are becoming increasingly difficult to compete with. Over the last decade, Lithium Ion batteries have shown an unexpected improvement in economy. The cost has reduced 10x and cycles have increased 10x, altogether for a 100x improvement on the economy for high cycle applications. Lithium Ion batteries have now become main stream for utility scale energy storage, and also for the frequency regulation services being targeted by Ocean Harvesting. As such, the potential economic impact of the energy storage system is expected to be far less than was previously forecast, and would not be worthwhile to dedicate resources to advancing the technology which could instead be used to commercialise the Infinity Drive which has proved to be the more promising technology both technically and commercially. Ocean Harvesting continues to operate in the wave energy sector, promoting renewable and cleaner forms of energy for a more sustainable and healthier society.