Case Study -
Portsmouth International Port 

Portsmouth International Port

Shore power, smarter.

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A UK port electrifying berths for hybrid ferries and visiting vessels. The goal: reduce energy costs, lower Scope 2 emissions, and demonstrate the value of new shore-power infrastructure.

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What the MMS does

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• 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

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Outcomes​

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• 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

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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.

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