The Model E8 Portable Generator is nominally rated at 2.4 kW and provides 48 VDC power at 50 amperes of current. The E8 generator contains two POWERSTACK™ MC250-1200W stacks and is the first generator powered by the POWERSTACK™ MC250 fuel cell.

The self-contained unit is fuelled by an external tank of compressed hydrogen at 6-200 bar (100-3000 psi) and includes on-board batteries that supply power the instant the switch is turned on. At full power, fuel consumption is 1600 normal litres/hour. Electrical efficiency of the entire generator is above 50%, a figure unequalled by any other device in its class, and several times higher than the efficiency of conventional generators fuelled by gasoline. As well, it is quiet and emission free allowing it to be operated indoors. The Model E8 is user friendly as the end user simply flips a switch to have power delivered. The complete unit is controlled by a microprocessor-based system that performs all control, supervisory, monitoring and data logging functions automatically.

The Model E7 is an advanced version of the golf car power unit (Model E6). Identical in size to its predecessor, the Model E6, it is built with the POWERSTACK™ MC250 technology which provides 1.8 kW nominal power (50A at 36VDC). With a 20% overload factor maximum power output reaches 2.15 kW, sufficient for continuous cruising at top speed which typically requires 1.6-1.8 kW for this type of vehicle.

The ability to overload the generator by 20% provides sufficient power for acceleration and hill climbing which will allow the Golf Car to expand its performance envelope outside of the golf course.

The Model E6 was designed as a compact powerplant for variety of applications in small vehicles or as a portable or stationary power source. With dimensions of 21 x 23 x 17 inches, it fits under the seat of a popular golf car.

The generator may be configured for 48 V, 36 V or 24 V output. It made its debut in March 2001 with the LC200-30 stacks powering a golf car equipped with a 1.8 kW electric motor and a switchmode controller. A composite carbon fibre 33-litre fuel cylinder mounted in the back of the vehicle carries over 8 Nm3 of hydrogen compressed to 3600 psi. This is sufficient for about 3 days of typical driving. Refuelling with compressed gas takes only about a minute or two.

The Model E5B is a portable generator built for evaluation of fuel cell based power sources by the military. It is fuelled by gaseous hydrogen, and air is used as oxidizer. Integral fuel tank with capacity of 5.1 litres of hydrogen compressed to 200 bar (3000 psi) provides 1.5 kWh of electrical energy.

The generator can be refuelled in a minute or two through the quick disconnect port, or may be connected to an external tank. It uses two LC200-20 stacks. A dry CO2 scrubber conditions the input air for delivery to the stacks. Overall electrical efficiency of the generator is 50 % at full load, and even higher in the partial load region.

The Model E4B fuel cell uses gaseous hydrogen fuel and oxygen from the air to produce 4 kW of electrical power. Approximately same amount of power is available as byproduct heat.

With dimensions of 120 x 140 x 75 cm (48 x 56 x 30 inches) this device is the precursor of the fuel cell co-generation units to provide electricity and heat in the homes of future. Such an appliance, installed in the basement, will generate the electricity your home needs, plus low grade heat suitable for home heating. In this mode, close to 100 % of the energy content of the fuel is used in your home.

By contrast, in conventional power generation by electric utilities, upward of 60 % of total energy is lost by the time the electricity is delivered to you.