First Chevy Volt Electricity Bill (PG&E)
If you are unfamiliar with KwH’s and time of use rates etc and want to understand the basics of how to calculate How much it costs to charge a Chevy Volt – check out that linked article before reading about time of use rates below.
Today, I received my first Chevy Volt Electricity Bill under the PG&E Time of Use rates for electric vehicles today (specifically the E-9A). Below are the specific Details
01/01/2011 – 01/30/2011
Electric Charges $20.18
Total Usage 302.723250 Kwh
Winter Partial Peak Usage
Baseline Usage 135.216500 Kwh @ $0.11123
Winter Off-Peak Usage
Baseline Usage 167.506750 Kwh @ $0.06186
Baseline Credit 302.723250 Kwh @ -$0.01729
Net Charges $20.18
Off Peak Usage currently for winter is between midnight and 7am. If you reference my previous analysis of cost savings for time of use rates on electric vehicles, you would know that I normally use about 1.2 kw*hr off peak per day or roughly 36 Kw*H per month.
That means that about 120 Kw*H of electricity was strictly used for charging the Volt. Compared to “normal” rates I save about 6 cents per kilowatt hour which amounts to a savings of $7.20 this month by using the electricity off peak vs. on peak.
This month, I drove less than I would have normally, (about 60% of the travel I would have normally done) for various reasons, so I expect the electricity usage off peak to increase from 120 Kw*h to 200+ in subsequent months.
I currently have 900 miles on the Volt, so the savings ot a person who uses more of the electric range in a day would add up much faster. Consider that the Volt gets an efficiency of between 2.5-4 Miles per Kw*h. There also being some additional usage not strictly to recharge the battery, lets say for this purpose that you can get 3 miles per Kilowatt. A person driving say 30 miles electric per day every day would drive about 900 miles electric per month would use about 300 Kw*h of electricity per month.
In my case they would save $18 / month on electricity compared to normal rates.
So in the winter, this cost savings may not be a big deal, but consider in the summer that on peak rates could be anywhere between 25 cent / kilowatt – 40cents / kilowatt and the savings really start to add up.
$18 / mo *12 months is $216 per year of savings though nonetheless. And as electric car buyers are paying a premium right now, we’ll take everything we can get in terms of savings and perks.