The ElectraTherm Green Machine enters Canada’s Natural Gas Compression Market


Waste heat from a 1400 Horsepower Waukesha 7042 Reciprocating Engine Provides Distributed Generation and Offsets Local Electric Loads


Cessford, Alberta, Canada. ConocoPhillips has installed two ElectraTherm Organic Rankin Cycle (ORC), Green Machine waste heat-to-power generators at their Cessford gas compression station. The two Green Machine 4400s, produce electrical output up to 65kWe each and run in parallel off the waste heat from a Waukesha 7042 natural gas engine. The waste heat generates approximately 90kWe gross of fuel-free, emission free electricity at the site. The Green Machines were installed in the first quarter of 2014 and have each exceeded 2,000 hours of run time to date. They are remotely monitored from ElectraTherm’s headquarters in Reno, NV 1,200 miles away. These Green Machines are the first commercial ORC units to receive a Canadian Registration Number (CRN) and be approved by the Canadian Standards Association (CSA) for Canadian deployments.

Natural gas distributed generation

Installation of ElectraTherm Organic Rankin Cycle at Cessford gas compression station.

Exhaust heat from the natural gas engine is converted to hot water and added to the jacket water heat through an engine glycol cooling loop combined with an Aprovis exhaust gas heat exchanger. The waste heat enters each Green Machine at 230°F (110°C) and 180 GPM (11 l/s), where it’s converted into usable on-site power. This specific site was retrofitted into an existing compressor using an engine driven radiator/gas cooling system.

Future deployments of the ORC system will be configured to replace the existing radiator/gas cooling system with the Green Machine and its dedicated electrical cooling system. This frees up engine horsepower for added compression and provides power for local loads while eliminating the CapX of a conventional engine radiator. “The ORC system simply becomes a power producing radiator with a payback”, said Loy Sneary, CEO of Gulf Coast Green Energy, the first distributor of the Green Machine. “We have been working with several O&G companies that are considering installing Green Machines for energy efficiency and optimization. Now that CP has contracted with ElectraTherm to install these units we believe other O&G companies will do the same”.

The ElectraTherm Green Machine generates fuel-free, emission-free power from low temperature waste heat on applications including internal combustion engines, biomass, geothermal/co-produced fluids and solar thermal. The ElectraTherm Green Machine fleet has accrued more than 220,000 hours (25 years+) of runtime to date. A list of reference sites is currently available on the website.

About Gulf Coast Green Energy: GCGE is a leader in small-scale, distributed power generation from waste heat and is the first and oldest distributor for the ElectraTherm Green Machine, please visit us at

ElectraTherm, Inc. is a renewable energy company headquartered in Reno, Nevada. ElectraTherm’s product, the Green Machine, generates fuel-free, emission-free power from low temperature waste heat using the ORC and patented technology. The Green Machines are modular, robust power generators with an attractive return on investment. For more information on ElectraTherm and its clean energy products, please visit