LAFAYETTE, ind. (WLFI) - Research done by a Purdue professor may help CityBus save thousands of dollars. Purdue economist Wally Tyner and a student compared three fuel systems to find out which one would be cheapest for a fleet of vehicles.
They compared natural gas, diesel-electric and diesel to see which would be the most cost effective over a 15-year period. Tyner concludes natural gas will be the cheapest at $48 million. Diesel-electric would cost the most.
He said the up-front cost for CityBus to make the switch should be paid back in about 12 years.
"You spend $2 million up front and CityBus has 73 buses in their system. Over the life of those buses, you pay back that $2 million and more. That's the key," said Tyner.
Tyner said the $2 million cost goes towards converting buses and building a refueling station. CityBus has made no decision to make the conversion.
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