Milton Keynes Electric Buses

[markwj]

BBC News - Wirelessly charged electric buses set for Milton Keynes

Electric buses which their developers say can run all day are set to begin service.

A fleet of eight new electric vehicles will operate along a busy route in Milton Keynes from late January.

The buses can run for longer by virtue of a wireless booster charge they receive at the start and end of the route from plates in the road.

The buses are the first of their kind to operate in the UK.

The top-up charge mechanism looks pretty neat. The buses get about 10 minutes top-up charge (they call it a wireless 'resonance' charge) at each end of the route, throughout the day 18 hour workday. Conventional wired charging, at the depot, is used for the remaining 6 hours.

 

[rabar10]

Was wondering how much power goes through those inductive plates -- then realized there was enough info in the article to make a rough estimate.

- 15 miles end-to-end
- other electric buses list figures like 2kWh/mi for efficiency (one example)
- Assume that to minimize battery size, the bus gets the full amount of energy needed to complete the 15-mile trip from the inductive plate chargers
- 30 kWh in 10 minutes (1/6 hour) is 180kW. Say 200kW to make a nice round number and to account for inefficiencies.

 

[AMPd]

Say 200kW to make a nice round number and to account for inefficiencies.

You hear that Tesla!
Step your game up!!!

Im kidding of course!