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I purchased a Nissan Leaf on May 12th; so what does it cost me in electricity?

Like most people I have an electric bill and I have tier billing. These are the tiers from Austin Energy:

 

Tier 1 first 500 kWh at $0.018 per kWh    $9.00
Tier 2 next 500 kWh at $0.056 per kWh    $28.00
Tier 3 next 500 kWh at $0.072 per kWh    $36.00
Tier 4 next 1,000 kWh at $0.084 per kWh    $84.00

 

The Measure:

To measure how much power my charger consumes; I use a device called a Kill-o-Watt. It plugs in between the wall and the car charger.

Here are 2 average samples:

From a full charge I drove 31 miles and used 12.8 kWh.

From a full charge I drove 64.4 miles and used 25.72 kWH

My average is right around 35 miles a day and I only use this car for work, so 20 days a month. Last month was 715 miles.

 

The Math:

So from these two samples I can say 95.4 miles will use 38.52 kWH

Mathematically that works to be 100 Miles at 40.37 kWH or 1 mile = .4037 kWH

So depending on what tier I am in when charging the Leaf the price will vary.

I general get through all 4 tiers by the end of the month.

 

Tier 1 would be 179 miles at 0.4037kWH  per mile = 72.161 kWH total * $0.018 = $1.29

Tier 2 would be 179 miles at 0.4037kWH  per mile = 72.161 kWH total * $0.056 = $4.04

 Tier 3 would be 179 miles at 0.4037kWH  per mile = 72.161 kWH total * $0.072 = $5.20

 

Tier 4 would be 179 miles at 0.4037kWH  per mile = 72.161 kWH total * $0.084 = $6.06

 

The Result:

So my drive to work of 715 miles cost me roughly $16.59 a month.

 

 My Leaf: The 2 blue lights on the dashboard show the charge level. There are 3 lights total.

 

Kill-a-watt: This measure usage for anything you plugin to it.