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EcoStar Champions

Spring 2005: Office of Environmental Health & Safety

Suggestion prepared by Tom Pohlman: Environmental Health & Safety sometimes seems to run on batteries. Nearly all monitoring, field analyzing and communication equipment receive their electrical power from batteries. This results in EH&S using hundreds of D, C, AA, AAA and 9 volt batteries each year. The most commonly used batteries are the AA and AAA sizes. To reduce the cost of replacement batteries, EH&S investigated using rechargeable batteries to power their field equipment.

EH&S researched the longevity of rechargeable batteries and determined that Nickel - Metal Hydride (Ni-MH) batteries are purported to be able to be recharged 800 to 1000 times before needing to be replaced. While most alkaline batteries offered through the warehouse cost about .25 cents each, Ni-MH batteries cost near five dollars each. The initial expenditure is costly but each of these batteries pay for themselves after twenty charges. EH&S purchased 12 AA batteries, 12 AAA batteries and two battery chargers. The initial expenditure was $190.00. Based on just 500 recharges, each of these batteries prevent 499 alkaline batteries from needing disposal and save $125 in fresh battery replacements. EH&S plans to expand this program to include D, C and 9 volt batteries to reduce battery disposal and equipment operation costs.

Spring 2004: Pat Elks, Academic Library Services - Joyner Library

Suggestion: The new addition of Joyner Library created an open hallway to the loading dock. Every time the loading dock door was opened, it allowed large amounts of hot or cold air to enter the Library. Pat Elks suggested installing a door to the loading dock area to limit the flow of unconditioned air into the building. This suggestion made a significant difference in the cost of heating and cooling Joyner Library's new addition.


updated 01/10/05

East Carolina University
Campus Operations
1001 East Fourth Street
Greenville, NC