For a vessel waiting at a port or shipyard, meeting its energy needs from its own diesel generators is a disadvantage in fuel cost, emissions, and noise alike. Shore power systems allow the vessel to be supplied from land while berthed, letting the generators fall silent. In shipyards, providing safe and continuous power to vessels under maintenance or construction is a core operational requirement.
Miratek designs, installs, and commissions shore power connection points and ship supply systems as a single point of contact. A low- or medium-voltage connection architecture is defined according to vessel type and power demand; frequency and voltage compatibility, protection coordination, and safe connection procedures sit at the heart of the system design.
After installation, connection scenarios are verified with site tests, and safe connection procedures are handed over to the operations staff.
Technical Scope Summary
| System types | Low-voltage and medium-voltage shore power connections |
| Reference standard | IEC/IEEE 80005 series (high-voltage shore connection, HVSC) |
| Frequency compatibility | Frequency converter solutions for 50 Hz and 60 Hz ship networks |
| Application areas | Ports, shipyards, repair docks, marinas |
| Equipment | Shore connection panels, cable management systems, protection relays |
| Delivery model | Turnkey: design, procurement, installation, testing, and commissioning |
How We Work
Site survey and vessel profile analysis
The vessel types calling at the berth, their power demands, and voltage and frequency needs are identified to define the system capacity.
Design
The connection point layout, supply architecture, protection coordination, and — where required — frequency converter integration are designed.
Equipment procurement
Shore connection panels, cables, and protection equipment are procured with protection ratings suited to the marine environment.
Site installation
Supply lines, connection points, and cable management systems are installed without disrupting quay operations.
Testing and commissioning
Connection scenarios, protection functions, and synchronization procedures are verified with site tests, and the operations staff receive training.
Scope of Work
- Construction of shore power connection points
- Ship supply lines and distribution panels
- Integration of frequency converter systems
- Protection relays and safe-connection interlocking systems
- Cable management and reeling systems
- Grounding and equipotential bonding arrangements
- Testing, commissioning, and operations staff training
Frequently Asked Questions
What exactly is shore power, and why is it needed?
Shore power means meeting the energy needs of a berthed vessel from the land grid so that its generators can be shut down. It cuts fuel consumption, emissions, and in-port noise, and is an increasingly common requirement at international ports.
Can every vessel connect to shore power?
The vessel's network frequency and voltage level must be compatible with the land grid; vessels with 60 Hz networks require a frequency converter. Connection power and connector type also vary by vessel class. At the survey stage, the appropriate system architecture is defined based on the profile of vessels calling at the berth.
How is power supplied to a vessel under maintenance at the shipyard?
A vessel under maintenance or construction is supplied safely from shore supply panels while its own power systems are offline. The supply line is sized to the power the vessel demands, protection settings are applied, and the connection procedure is secured with interlocking devices.
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