Although the Variable Input Electrical Generator (VIEG) has a wide range of potential applications, our primary focus is on the MW wind power market. We define this market as wind turbines generating in excess of 1 mega watt (MW).

Simply put: if the VIEG is substituted for a traditional generator in a wind turbine, that turbine will produce more electrical energy out of the same amount of available wind. Output increases will vary depending on plant configuration and site, but double digit increases can be expected. In addition, since the VIEG geometry and circuitry can be configured to adapt to the input energy source, the need for a mechanical gearbox is eliminated which further increases output (by eliminating friction losses of 3% to 5%) and also drives down the overall weight and cost of the wind turbine.

The VIEG has a simple value proposition… it reduces the per kW cost of alternate energy.

Reduction of capital costs:

• Gearbox – Exro’s generator technology eliminates the need for a mechanical gearbox in variable energy applications, thereby reducing capital cost for alternate energy plants.
• Power Electronics – The ability to reconfigure capacity and circuitry within the VIEG on-the-fly allows the controller to “pre-process” the output signal which in turn reduces the burden on downstream power electronics thereby increasing efficiency.

Increased output:

• Generator - the ability to match the VIEG’s output capacity with available energy allows it to operate at near peak efficiency across the variability spectrum which in turn increases the output capacity of the turbine.
• Power Electronics – The ability to reconfigure capacity and circuitry within the VIEG on-the-fly allows the controller to “pre-process” the output signal which in turn reduces the burden on downstream power electronics thereby reducing processing losses.

This compelling value proposition has the potential to increase market share for turbine manufacturers. Since every 1% increase in turbine market share is worth approximately $400m/yr, billions in enterprise value is at stake.

• Applications
• Renewables
• Gensets
• Vehicles
• Other