June 26, 2020: Japanese lead-acid and lithium battery maker GS Yuasa has been selected to provide a 100kW pilot hybrid battery system at the port of Portsmouth in the UK, Portsmouth International Port said on June 19.
While the battery management system is GS Yuasa’s, the integration of artificial intelligence with the system is being developed by Anthony Price, who heads up energy storage consultancy Swanbarton.
“One advantage of the combination of the two batteries is minimizing expense,” he said. “Despite the price falls we have seen in recent years for lithium batteries, they are still more expensive than lead. The combination of the two and AI protocols we are introducing will reduce the cost of energy management.”
Named the Port Energy Systems Optimisation project, the batteries will be connected to a rooftop solar array that will be installed in an area of the port where 24-hour loading activities need continuous power. The aim is to maximize self-consumption by collecting energy during the night for use during the day, along with solar panel generation, which if unused during the day can also be stored.
“The port already uses electric lift trucks and is keen to increase the general use of EVs within the port area,” a spokesman for Portsmouth International Port told ESJ.
“This will help to combat ICE emission pollution that is already high from ships and through traffic.
“The lead-acid battery provides the bulk of the energy storage capacity for cost-effective harvesting of renewable energy, and the lithium-ion battery provides high power discharge capability for EV fast charging.
“The lithium-ion also supports the operating condition of the lead-acid battery to extend life and energy conversion efficiency.”
The lead batteries are manufactured at GS Yuasa’s factory in Ebbw Vale, Wales, where final assembly and the integration of the entire system will take place. The lithium batteries are made in Japan.
One of the biggest problems for rapid EV charging is the limited power available to commercial premises.
“This will often be in the 30kW-50kW range for a medium sized shop of car showroom. The battery capacity of standard EVs ranges from 50kWh to 90kWh, so fast charging can overwhelm sites causing the grids to crash,” said the spokesman.
“The new GS Yuasa dual chemical energy storage system will be able to supply 100kW of power and will be housed in a weatherproof shelter.”
Mike Sellers, port director at Portsmouth International Port, said: “Yuasa’s battery will provide the centrepiece of the project, which will help us use renewable energy more efficiently across the port estate.”
The two-year PESO project is being part funded by Innovate UK, part of the United Kingdom Research and Innovation organization.