Their challenge

This combined heat and power plant was designed to replace a 1950’s vintage coal plant that was being retired. The plant was built on a green field site and delivered to the end client as a design/build, own/operate project. The plant is designed to provide 7.9MW of electrical power and 150,000Lb/Hr of 300psig saturated steam to the adjoining chemical facility. A single Solar Taurus 70 Combustion Turbine and HRSG is the primary electrical and steam source of the plant. Additionally, the project required the construction of a 10,000 square foot building to house two 80,000Lb/Hr package boilers and all balance of plant and support systems including RO water treatment, condensate collection, deaerator, and boiler feed water. The plant master control system was implemented on Control Logix PLCs and Wonderware.

Our solution

Our engineering team was responsible for civil, structural, architecture, mechanical, electrical, plumbing, and controls engineering work to support the owner of this project. We also took the lead on engineering for plant instrumentation and controls including sizing and specifying control valves and flow meters. In addition, we planned and managed design schedule, deliverables, and quality assurance and commissioning two package boilers and several BOP systems.

The results

Notable benefits of the finished plant include the end client’s transition away from coal as an energy source and reduction in fuel demand and long term operational costs due to the high efficiency of the CHP technology used in the plant.