Public Transportation and School Bus
eNow has developed a solar battery charging system that maintains consistent battery charge and improves overall battery health for buses used as public transportation as well as school buses. With eNow, each vehicle becomes its own mobile power station by generating sustainable energy whether the engine is on or off.
The eNow system is ideal for:
Buses that sit in the lot for an extended period
Buses with long wait times at bus stops or in traffic
Buses with wheelchair lifts
Increasing traffic, combined with rising maintenance and fuel costs, are challenges faced by transit fleets. Idling remains an unfortunate consequence of bus operation, putting a strain on transit and school fleets across the nation.
An average municipal fleet of 600 buses wastes over $406,900 a year in fuel idling.
Public transportation is responsible for emitting a total of 12.3 million metric tons of CO 2 a year.
A school district with 50 buses wastes 50 gallons of fuel and 50 hours of labor every time the buses are started during the summer.
In addition to wasting expensive fuel and emitting greenhouse gases, idling also puts undue stress on the vehicle’s battery and alternator, leading to increased maintenance and replacement costs. Service calls to jump start the batteries are costly and time-consuming, and utilizing staff time to start/run engines just to charge the batteries wastes time and energy.
The eNow Solution
With eNow, batteries are charged continuously whether the engine is on or off. This means the batteries maintain more than enough power to run wheelchair lifts, air conditioning, and lights without idling the engine. This not only reduces fuel costs; it eliminates health concerns from excess emissions.
An additional benefit is that idling is not necessary to operate a wheel chair lift.
eNow is a “smart” system, directed by the charge controller. When the sun rises, the charge controller does a bulk charge to replenish the batteries. Once the charger detects a full battery, it goes into a trickle charge (or float) mode. It will continually charge the batteries during daylight hours, and then contributes directly to bulk charging the batteries to replace the energy used during auxiliary system operation. This all happens automatically, with no driver action required.
Through customer feedback and extensive testing, we know that improving battery performance translates to increased revenue of $1,000 to $4,000 per year based on
- reduced fuel costs through reduced idling
- increased battery life (reduced battery replacement costs)
- reduced downtime and engine maintenance
- elimination of labor to maintain batteries on out-of-service buses
For every hour of idling saved, you will reduce fuel burn by one gallon. That means a school bus fleet of 50 buses that reduces its idling time by 30 minutes a day can save over $2,500 per year in fuel costs.
Battery life is extended to 3-4 years depending on battery type because the system ensures that batteries are never left in a discharged or partially charged state.
Based on the figures above, payback period for eNow solar is approximately 6-18 months. The system will last as long as the bus and our warranty is a full 5 years.
Eligible for 30% solar tax credit.