The plummeting cost of lithium-ion batteries could see a whole new approach to transmitting electricity from offshore wind farms to shore, according to PowerX. The Japanese start-up is hoping to develop a Power Transfer Vessel that can ship a huge amount of battery-stored energy and replace the existing method of subsea cables. However, with hard limits on transport speed, transport efficiency, and battery energy density, we’re skeptical to say the least. The company is aiming to develop its first vessel – the Power ARK 100 – by 2025. The adaptation on the 100TEU trimaran model aims to have the ability to carry 100 grid-scale batteries, each with a capacity of 2 MWh, over distances of up to 300 kilometers, running…