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“Study the past if you would define the future” [Confucius]

A few milestones that Nooter/Eriksen has achieved
over the years with some of our global projects


Nooter/Eriksen is formed

Began in 1987 with the merging of Eriksen Engineering in Tulsa Oklahoma, and the Nooter Cogen Group in St. Louis, Missouri; opening an office in Sunset Hills, MO. Through the years we have outgrown our offices and have had to move twice. We are now headquartered in Fenton, MO.


First HRSG for the Frame 9F

Awarded the first HRSG for the 2-GE Frame 9F for the Medway, UK project. The first design with Reheat.


First HRSG supplier in U.S. to become ISO 9000 certified

First HRSG supplier in the USA to obtain ISO 9001 certification. Also our Milan, Italy office has obtained the OHSAS 18001 certification. Underscoring our commitment to quality, the program has since been regularly audited and re-certified by DNV-GL.


First HRSG for the W501G

Awarded the first HRSG behind the 1-Westinghouse W501G for the Millennium, Massachusetts project.


Establishment of N/E-CCT

Nooter/Eriksen, Inc., Saint Louis, MO, USA and Caldareria Costruzioni Termomecchaniche SpA (CCT), Gallarate, Italy form a joint venture (JV) company, N/E-CCT,  to offer heat recovery steam generators using NE’s design Standards across parts of the European Union, the Middle East, and North Africa.


First supplier to import a large HRSG into Japan

Awarded project from Toshiba that was the first large HRSG to be imported into the Japan market, Osaka Gas


First F-Class OTSG for US market

Awarded first F-Class OTSG from Siemens for the US Market for the Lodi Energy Center in Lodi, California.


First H-Class HRSG for US market

Awarded the first H-Class HRSGs from FP&L for their Cape Canaveral and Riviera Beach facilities.


First J-Class HRSG for Yulchon, South Korea

Awarded the first J-Class HRSG for the Yulchon, South Korea project from Mitsubishi.


Awarded the Crescent Dunes Molten Salt Receiver from Pratt & Whitney Rocketdyne

Nooter/Eriksen awarded the Crescent Dunes Solar Energy Project – First concentrated solar power plant with central receiver tower and advanced molten salt energy storage technology (Tonopah, NV)



Developed Supercritical HRSG technology


Nooter/Eriksen acquires Pensotti Technology

Nooter/Eriksen purchased the technology, expertise, and project references from Pensotti, an Italian boiler manufacturer, expanding our range of products to include Fired Boilers, Biomass Boilers and Waste to Energy Boilers utilizing renewable waste streams such as Urban Waste and RDF.


Partnership with HydroFLOW USA (Sept 2020)

Nooter/Eriksen signs an exclusive licensing agreement with HydroFLOW USA to bring electronic water conditioning technology to power generation, refining, and other industrial facilities in North America.