
Portsmouth International Port
Context
A UK port electrifying berths for hybrid ferries and visiting vessels. Goal: reduce energy costs, lower Scope 2 emissions, demonstrate the value of new shore-power infrastructure.
What MMS does
• Optimises a grid-connected BESS in real time
• Tariff arbitrage on half-hourly pricing
• UK day-ahead carbon-intensity forecasts
• Vessel hotel loads and shore-power demand
• Site operational constraints
Outcomes
• Minimised cost of imported electricity
• Reduced carbon intensity of shore-supplied power
• Auditable carbon reporting for port operators
• Control backbone for future ferry charging and shore-power expansion
Why it matters
Ports are among the most complex behind-the-meter sites in the UK: high peak loads, irregular demand patterns driven by vessel schedules, and increasing pressure to decarbonise. The MMS turns a static battery into an active asset that responds to tariffs, grid carbon and operational realities at once.
