The Little Red Book

CONVERTING KW/TON TO COP or EER

	(ex: If a chiller's efficiency is rated at 1 KW/ton, the COP=3.5 and the EER=12)
KW/ton	=	(12)/EER
KW/ton	=	(12)/(COP x 3.412)
EER	=	(12)/KW/ton
EER	=	COP x 3.412
COP	=	(EER)/3.412
COP	=	12/(KW/ton)/3.412

ELECTRIC UTILIZATION INDEX (EUI)
Calculate EUI by dividing annual KWh consumption by the facility's square footage. Use this table for general comparison purposes only ...


Type of Building	Common EUI
Grocery	61.0
Restaurant	38.9
Hospital / Health	16.4
Retail	12.1
School / College	10.3
Hotel / Motel	8.2
Office	7.5
Misc. Commercial	6.4
Warehouse	6.1

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