Prelude, which is under construction in South Korea, will be the world's first floating LNG project and will be deployed to the Browse Basin off the coast of Western Australia.
Emerson will provide standby power for critical process functions such as automation systems, fire and gas detection and telecommunications.
"Mission-critical facilities on Shell's FLNG facility require the highest levels of availability and backup power supplies are key components of making sure infrastructure like this remains always on," Emerson Network Power business leader Scott Barbour said.
The contract win follows a 2010 main automation contract awarded to Emerson Process Management for the Prelude development.
