Case Studies

IEA identified an opportunity to reduce energy by utilizing ocean water for their process cooling requirements. This resulted in the plant turning off their plant tower system and used the bay water for free cooling. This resulted in a savings of $296,475 per year

IEA recommended the installation of inlet suction controls on the 4 refinery Hydrogen Compressors which were 1,750HP each. The controls reduced the recycle on the system and the plant saved $1,440,212 per year, and the project had a 1.8-year simple payback

IEA recommended that the plant utilize automation to control their multiple compressor systems and programmed them to operate in a batch control mode. The automation resulted in $316,646 per year in energy savings and the project had a 4-month simple payback

IEA discovered that the plant was venting large volumes of steam in order to maintain temperature in a process. We installed waste heat recovery pipe and a new steam driven pump which supplied power to the cooling tower. This project resulted in $655,013 savings per year and had a 1.6-year simple payback

IEA identified and implemented a chiller project which utilized waste heat from the Thermal Oxidizer system which burned off NOX for pollution control. The absorption chiller used the heat from the RTO to generate chilled water which was used in the plant. This project saved the plant $158,620 per year and created redundancy by placing the existing chiller on standby

A chemical treatment plant operated 435HP of ventilation fans to remove chemical fumes from the work area. The fans were on constantly and never shut off even if there was no production. IEA installed air quality-controlled sensors, a PLC and 15 VFD's (1) for each fan.  The sensors told the fans to remove more or less fumes as was needed in order to maintain high quality air on the factory floor. The project saved the plant $164,585 per year and the project had a 9-month simple payback