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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.

DesignRenewable
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Formula, assumptions, and limits

E=AIηPVPRdE = A \cdot I \cdot \eta_\text{PV} \cdot \text{PR} \cdot d
SymbolMeaningUnit
EEAnnual energy producedkWh
AAUsable PV array area
IIAverage daily global horizontal irradiancekWh / m² / day
ηPV\eta_\text{PV}Module efficiency at STCfraction
PR\text{PR}System performance ratio - marine 0.70–0.80fraction
ddDays of PV availability per yeard

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.

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