EX10 Expander-Generator

The RadMax EX10 expander-generator is a positive displacement electricity producing power unit installed in parallel across an existing natural gas pressure reduction point to generate electricity from energy normally wasted by typical throttling type pressure control valves. Approximately two thirds of this “lost” energy is recoverable and can be converted to rotary power and electricity by the RadMax EX10. Utilizing a small diverted gas flow from the pipeline, the RadMax EX10 expander is coupled with a 2, 5 or 10-kW electric generator depending upon the site’s pressure letdown conditions and power requirements. 

RadMax expanders do not have the limited online availability and maintenance issues associated with other types of alternative energy sources like solar and wind nor do they create additional GHG during its operation like combustion powered generator units.  The dependable and economic power generated can be used to drive converted pneumatic controllers eliminating methane emissions from these types of devices. The power can also be used to drive electronic equipment, lighting, communications or other site devices.

A version of the EX10 can produce electricity from the natural gas fuel flow to compressor station engines, and a new version that produces compressed air instead of electricity is under development.

EX10 Expander-Generator Power Unit Benefits 

• Generated power is essentially “free and green” as the cost and economic penalty of producing the power has already been paid in the compression of the natural gas. 
• A low cost, constant and dependable source of electricity for locations where electricity is not available or is expensive.
• Methane emissions are reduced or eliminated when the generated electricity is used to replace existing natural gas pneumatic controllers. 
• Power is produced as long as there is sufficient gas flow through the expander.
• Does not have the availability and maintenance issues associated with other types of alternative energy sources like solar and wind. Does not create additional GHG during its operation like combustion powered generator units.
• Motor starting capability.
• System is self-starting and regulating, and requires no external power source.
• Separate expander-generator and electrical cabinets rated for Class 1, Div. 2 rated and Unclassified hazard areas.
• Easy installation with gas upstream and downstream connections.

Additional InformatioN
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RadMax EX10 Expander-Generator Natural Gas Power Unit Specifications Sheet