SPECIAL REPORT
bus offsets the lower miles per gallon achieved com- pared to diesel, but the lower fuel cost (propane currently costs about a quarter of the per gallon diesel price) and reduced maintenance plus less salary expenses for tech- nicians makes a compelling argument to buy more. “There should be no adverse effects in long-term reli-
ability or dependability,” he said. “We expect the same in life expectancy out of the two different type buses. In a direct comparison we see an almost minimal immeasur- able in terms of differences in fuel economy.” Bullman added that, conservatively, his department is seeing 10- to 12-percent operating cost reductions, but many times the savings are higher. “While the propane bus, at least on the previous con- tract, was about 8- to 9-percent more expensive than the diesel bus, we can offset that about a little over halfway through its lifecycle,” he noted. And in addition to reduced operational costs and
emissions, the propane bus drives much quieter, which is a big deal for any route but especially one transporting students with special needs. Shawn Kendrick said it’s true that the propane bus
hardly makes a sound when it picked up Jack, except for the brakes—“The squeal,” she added. “[Jack] hasn’t said anything about the smell,” she contin-
ued, “but he can definitely tell you about all the stickers.” Jack once again will have to ride a diesel bus when school starts this month. But as Bullman added, the state plans to add 375 total news buses to the fleet in the com- ing year to remain in compliance with the mandated 15-year replacement cycle. He said the state has not met that requirement since the law was passed in 2008, but it plans to achieve the goal this year. How many will be propane depends on how much the U.S. Environmental Protection Agency Clean School Bus Program funds the state receives. He added South Carolina also plans on getting 100 new battery-electric school buses. That’s music to Jack’s ears. “He was like, what if I get an electric bus this time?” Shawn added. ●
Visit
stnonline.com/go/d5 for a blog on preparing propane fueling stations at school start.
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18 School Transportation News • AUGUST 2022 AU R D C R U ,LC
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