Each hybrid bus costs anywhere from $100,000 to $150,000 more than regular diesel buses. The city made the investment because it hoped to save on fuel costs.
Instead, the city spent $1 million more on diesel fuel than it expected to last year, Deans said. It also cost more than $7 million to replace the batteries on some hybrid buses last year.
In light of the underperformance, the city's draft budget for 2013 includes $550,000 for a pilot project to rip out the hybrid electric/diesel engines and replace them with regular diesel engines.
City could pay to turn hybrid buses into diesel buses - Ottawa - CBC News
Ick.