WATCH: Using energy storage solutions to tackle grid issues

Focusing on pilot sites in Cowes, Portsmouth and Falmouth, the government-funded project examined differing operational requirements and infrastructure challenges across the maritime sector. The study concluded that combining battery energy storage with smart energy management systems can make shore power and vessel charging more feasible, scalable and cost-effective.

Funded through the UK Shipping Office for Reducing Emissions (UK SHORE) within the Department for Transport, the project was coordinated by MSE International alongside nine industry and academic partners.

“Historic maritime energy transitions have depended critically on the infrastructure that makes energy resources available in ports at a competitive price,” said Dr Jonathan Williams, chief executive of MSE International.

“This is also true today, and PINS has shown how ports and harbours can create the electrification infrastructure that their customers will increasingly demand.”

Researchers assessed current and future vessel charging demands while reviewing four battery technologies: lithium-iron phosphate, second-life lithium-ion, sodium-ion and soluble lead-flow batteries. The evaluation considered performance, cost, safety and operational suitability, revealing that both established and emerging technologies can support maritime electrification.

Advanced modelling showed battery-supported systems can reduce peak grid demand, maximise onsite solar generation and deliver higher-power charging despite limited grid capacity. The project also explored charging technologies ranging from CCS-based DC charging for smaller vessels to high-capacity shore connections for ferries and cruise ships.

The project identified significant emissions reduction potential while highlighting opportunities for UK supply chains in battery technologies, smart charging systems and microgrid controls. Partners now hope to progress towards a real-world demonstration project to validate commercial and operational performance and accelerate adoption across UK ports.