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One last note about the presentation regarding the options for using the $300+ K grant for EV chargers.
The "100 charges per year" method is not particularly useful when calculating the cost of charging.
To calculate cost of charging per year, take the (annual miles driven) * (Wh per mile) * (cost per Wh)
For example, 13,000 miles per year is the average for passenger cars in the US.
A typical EV like Tesla** Model 3 or Model Y uses about 250 Wh per mile
(see https://ev-database.org/uk/cheatsheet/energy-consumption-electric-car <https://ev-database.org/uk/cheatsheet/energy-consumption-electric-car> )
At the JPUD $.11 per kWh rate, 13,000 miles in a Tesla would cost about $357.50 per year.
At the EVCS $.29 per kWh rate, 13,000 miles in a Tesla would cost about $942.50 per year.
Larger vehicles have higher energy usage, of course.
The F-150 Lightning (131 kWh, range 320 miles per Car and Driver <https://www.caranddriver.com/ford/f-150-lightning> ) uses 409 Wh per mile, or about 65% more energy per mile than a
Tesla passenger car.
For JeffCo fleet vehicles, the actual miles per year for each vehicle currently in use should be known by the county. So, adjust that 13,000 miles average to whatever the number currently
is for the vehicle that the EV will replace and you can have an accurate idea of what the cost for electricity will be for each vehicle.
Thanks again for the presentation, and for the record I agree with the decision of the BoCC to go with the EVCS option, subject to the terms regarding connectors and caps on rate increases.
Tom Thiersch
** Tesla has 50% US market share in 2024. About 80% of all BEVs currently on the road in WA are Tesla.