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Safety. Increased Efficiency. Risk Mitigation.

E/One's involvement spans the life cycle of the generator, and often begins as part of an OEM's original scope of supply to the plant. Our critical gas auxiliary systems are designed for use with scavenging or vacuum-type seal oil configurations. E/One has earned a primary-source status with the industry's leading manufacturers. Safety and unit efficiency are at the core of these applications.

Upon start-up and commissioning of the plant, and throughout the OEM warranty period, E/One delivers applications and field service support, and supplies risk mitigation technologies aligned to asset protection. These systems may similarly be offered as part of the OEM's original scope, and enable owners to better respond to today's challenges -- increased cycling, reductions in experienced plant personnel, aging fleet and prolonged periods between outages.

Extending the life and efficiency of a generating asset requires a broad perspective, including not only the machine itself, but the auxiliary systems and predictive maintenance systems that support it.

During this phase of the generator's life, E/One assists owners by supplying upgrades that meet evolving safety standards for hazardous areas, and by integrating technologies into cost-effective packages that allow installation work to be accomplished within the more dominant, critical path boiler and turbine outage periods.

Download the E/One Business and Systems Overview Brochure (PDF)

Generator Arcing/Overheat Detection

Hydrogen Purity

Hydrogen Gas Dryer

  • Generator Gas Dryer — Dual-chamber system continuously dries and recirculates generator cooling gas

Generator Purge Process

Customized Generator Monitoring Systems

  • Gas Station — Several monitoring and control systems combined into one skid


Environment One Corporation's Hydrogen Systems Business, an internationally recognized pioneer in the field of large power generator monitoring.

E/One's Utility Systems Business is an ISO 9001:2015 registered firm with a proven record in the field and a strong commitment to customer service and satisfaction.

Since designing the first field prototypes of our Generator Condition Monitor for General Electric in the early 1970's, we have continued to refine and innovate this predictive maintenance technology for overheat monitoring of hydrogen-cooled and air-cooled generators; we have also introduced hydrogen purge gas purity monitoring products for the electric power generator industry.

1991: The introduction of Gen-Tags, a system of tagging compounds designed to complement our Generator Condition Monitors and Collector Analysis services.
1994: The introduction of microprocessor-based GCM-A, monitoring products for air-cooled generators
1997: The introduction of GGA, a customized approach to increasing generator efficiency through hydrogen gas purity monitoring
1998: The introduction of GCM-X, the next generation in overheat monitoring, incorporating flameproof and intrinsically safe design features
2000: The introduction of Gas Station, a modular solution that combines monitoring and control systems into a single, integrated platform
2015: E/One introduces an automated Gas Manifold system for safe purging of generators
2018: E/One equipment protects more than 1 terawatt of power production in 70+ countries

Today, more than 3,000 E/One Utility Systems monitors stand vigil worldwide — helping utilities increase efficiency, improve maintenance practices and avoid costly downtime.