1. the state or quality of being sensitive; often used to denote a state of abnormal responsiveness to stimulation, or of responding quickly and acutely. 2. analytical sensitivity, the smallest concentration of a substance that can be reliably measured by a particular analytical method.
Typical Electricity Costs. The town of Wellesley, Mass., has estimated the average cost of running central air conditioning in a typical home for six hours a day will use 900 kilowatt/hours (kWh) per month. At a cost of $0.134 per kWh, this amounts to $120.60 per month.A large 12,000 BTU air conditioner, like that in a window, running six hours each day will consume 270 kWh, at a cost of $36.26 per month. A smaller 6,500 BTU room air conditioner will consume 144 kWh at a cost of $19.34 per month. large 12,000 BTU air conditioner, like that in a window, running six hours each day will consume 270 kWh, at a cost of $36.26 per month.
Central Air Average Costs. The actual cost of central air installation depends on a number of factors, including the size of the home as well as the unit's tonnage and SEER rating. In a 2,000 square foot home with existing ductwork, central air conditioning costs $3,000 to $5,000 installed.