Solar PV on Deck
Available deck-mounted photovoltaic energy and the auxiliary-engine fuel it displaces. Small but meaningful on car carriers, cruise upper decks, and offshore accommodation units with lots of uninterrupted flat area.
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Formula, assumptions, and limits
| Symbol | Meaning | Unit |
|---|---|---|
| Annual energy produced | kWh | |
| Usable PV array area | m² | |
| Average daily global horizontal irradiance | kWh / m² / day | |
| Module efficiency at STC | fraction | |
| System performance ratio - marine 0.70–0.80 | fraction | |
| Days of PV availability per year | d |
Source: Eco Marine Power - marine solar references; IEC 61215 - crystalline-silicon PV module qualification; IMO Resolution MEPC.282(70) - SEEMP renewable-energy measures
In short
Annual energy yield and aux-fuel displacement for a deck-mounted PV array on a merchant ship.