Table 2.

The component of chiller plant equipment for energy saving calculation in the case study.

	Pre-retrofit stage	Post-retrofit stage
Chiller plant	Annual chiller energy use	Annual chiller energy use
	Annual chilled water pump energy use	Annual chilled water pump energy use
Heat rejection	Annual sea water pump energy use	–
	–	Annual condensing water pump energy use
Annual energy use	A = sum of the above	B = sum of the above
Actual energy saving	Energy savings = A−B (calculated based on the post-retrofit conditions)