On 11/4/2014 1:58 PM, SMS wrote:
Thanks to high electricity prices and low gas prices it now costs less
per mile to run our Prius Plug-In on gasoline than on electricity.

Miles per Gallon: 45
Price per Gallon: $3.00
Cost Per Gasoline Mile: 6.67¢

Miles per KWH: 4
Price per KWH: $0.324 (no joke!)
Cost Per Electric Mile: 8.10¢

A Tesla is about 0.5 KWH/mile so at the same electricity cost it's far
more expensive than a gasoline powered vehicle.

The problem is the high electricity cost in my area. In areas of the
country where the electricity cost is half the price then it'd be
break-even for the Tesla, and a savings on the Prius. We are not big
electricity users since A/C is rarely needed here, and the water heater,
furnace, and clothes dryer are natural gas. But we always end up in the
top tier for electricity usage ($0.32445/KWH) which starts at 201% over
baseline.

The tremendous advantage of a plug-in hybrid, or all-electric, in
California, is the carpool lane access with a single person. And due to
state and federal tax credits, and factory to buyer incentives, the
Prius Plug-In was the same price as the gasoline-only model, and Plug-In
came with navigation and several other features. The carpool lane access
is really nice even though I don't really agree with the idea that
single occupancy vehicles should ever get to use the carpool lane; OTOH,
every additional vehicle in the carpool lane means less vehicles in the
other lanes so there is some benefit to everyone.

Assuming all your information is correct, you should spread this
observation further. Even with all the subsidies, the Prius costs are
spread to the taxpayer who pays for it. Cost to everyone is more for
transportation in these vehicles. Same goes for pollution advantage, it
is spread elsewhere in the form of the battery production and
electricity generated at polluting sites.