Vehicle type – Two-axle double deck hydrogen fuel cell electric bus;

Construction – Welded steel chassis and aluminium body;

Dimensions – 11.1m length / 2.55m width / 4.3m height;

Passenger capacity – Up to 73 seats (45 in upper saloon, 25 fixed + 3 tip-ups in lower saloon);

Seating – Alexander Dennis SmartSeat or choice of other solutions;

Accessibility – 1 or 2 wheelchair spaces, with manual ramp at front or electric ramp at centre door;

Electric motor – Voith Electrical Drive System, 350kW peak and 250kW continuous power output;

Fuel cell system – Ballard FCmove-HD, 45kW;

Energy storage system – Impact LTO lithium-ion battery, 30kWh;

Hydrogen tanks – NPROXX composite pressure vessels, 29.4kg at 350bar;

Operational range – Up to 300 miles on a single fill, depending on duty cycle and operating conditions;

Climate system – Forced air circulation with zero emission heat pump for heating and cooling.

https://www.alexander-dennis.com/media/86127/enviro400fcev.pdf