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Hydrogen Fuel Cell Bus Technology State of the ... - NEXTHYLIGHTS

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<strong>Hydrogen</strong> <strong>Fuel</strong> <strong>Cell</strong> <strong>Bus</strong> <strong>Technology</strong> <strong>State</strong> <strong>of</strong> <strong>the</strong> Art Review<br />

€18<br />

€16<br />

€14<br />

€12<br />

€10<br />

€8<br />

€6<br />

€4<br />

€2<br />

€0<br />

<strong>Hydrogen</strong> fuel price at <strong>the</strong> pump versus three elctricity prices<br />

( 50% electrolysis, 50% trucked-in gaseous hydrogen )<br />

Electricity price:<br />

€0.05/kWh<br />

Electricity price:<br />

€0.2/kWh<br />

Electricity price:<br />

€0.30/kWh<br />

Refuelling station maintenance cost<br />

Refuelling station financing cost<br />

Cost for <strong>the</strong> hydrogen (50% delivered<br />

and 50% produced from electrolysis)<br />

Average EU taxed and untaxed<br />

diesel fuel price (~ € 1.15 and<br />

€ 0.58/ litre)<br />

Assumptions:<br />

Refueling station capital cost: € 7.5million,<br />

<strong>Hydrogen</strong> purchase price: €4/kg<br />

Station maintenance fee: €225,000/year<br />

Discount rate: 3.5%<br />

Discount period: 10 years<br />

The figures assume two electrolysers<br />

with a capital cost <strong>of</strong> €300,000 each.<br />

The conversion efficiency <strong>of</strong> <strong>the</strong> process ,<br />

including gas continioning and compression,<br />

is assumed close to 65kWh/kg H2<br />

Figure 44 Estimation <strong>of</strong> <strong>the</strong> hydrogen fuel price at <strong>the</strong> pump for <strong>the</strong> refuelling station in<br />

HafenCity, Hamburg. The figures refer to three different electricity prices. The cost <strong>of</strong> <strong>the</strong><br />

hydrogen is <strong>the</strong> arithmetic average between <strong>the</strong> hydrogen purchase price and <strong>the</strong><br />

production cost from electrolysis.<br />

Figure 44 suggests that <strong>the</strong> hydrogen fuel price at <strong>the</strong> pump is likely to be at least three<br />

times higher than <strong>the</strong> average taxed diesel price in <strong>the</strong> European market, even<br />

assuming subsidised electricity prices (e.g. as low as €0.05/kWh). This result is<br />

influenced by <strong>the</strong> high capital cost <strong>of</strong> <strong>the</strong> refuelling station and, most notably, by <strong>the</strong> cost<br />

<strong>of</strong> <strong>the</strong> hydrogen itself, i.e. excluding financing and maintenance costs. This latter is <strong>the</strong><br />

key cost component and is influenced by <strong>the</strong> poor economic performance <strong>of</strong> <strong>the</strong><br />

electrolysers.<br />

There is, however, scope for substantial cost reductions for <strong>the</strong>se kind <strong>of</strong> refuelling<br />

station designs over time. Particularly as <strong>the</strong> constrained location and prototype nature<br />

<strong>of</strong> this project have increased costs significantly.<br />

106

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