Strategies for Increasing Energy Efficiency of Electrical AUX Loads in LNG and Petrochemical Facilities

Liquified Natural Gas and Petrochemical facilities utilize onsite generation or utility power to supply the plant auxiliary loads including lighting, process heaters, pumps, compressors, fans, building Heating Ventilation and Air Conditioning, Uninterruptible Power Supply etc. Power consumed by these plant auxiliary loads is a direct cost to the operating facility and minimizing the consumption can yield savings. A variety of strategies are available today including right-sizing and reducing losses in transformers, high efficiency motors, energy efficient prefabricated plant buildings, LED lights with smart controls, and solar street lighting. Implementation of such strategies can also help the user achieve their carbon reduction goals. This paper will explore such strategies from standpoint of ease of implementation, cost-benefit, and value to the end user. The goal is to provide a menu of options that may enable the user to choose the right combination of strategies to achieve their individual energy efficiency targets.