March 2019 Cost Breakdown

I’m still relatively new to electric vehicles and to California. I never actually looked at different electric options provided to me by my electric company. As a renter, the last thing I want to do is spend a lot of money getting a separate meter and outlet only to find myself potentially moving out. I don’t plan on moving out anytime soon, but I treat apartments as temporary dwellings.

Before getting my car, I was on a base plan with San Diego Gas & Electric (SDG&E) that had the same rate no matter what time you used it. The rates were based on how much electricity you used. They were divided into 3 tiers.

Charging an EV uses a LOT of electricity, so I started exploring different plans. That’s when I stumbled onto the Time-of-Use (TOU) plans. The plans are divided up into 3 sections, (On-Peak, Off-Peak, and Super Off-Peak) as well as a two tier level that’s based on your usage.

Though this helps me focus my charging between 12am & 6am, the cost difference was minimal (25 cents, 24 cents, and 23 cents respectively). That’s when I found out that there was one specific to EVs.

I was talking to @InElonWeTrust__ on Twitter during one of the meetups and he mentioned that he was on a plan (EV-TOU-5) that was 9 cents per kWh during Super Off-Peak while paying a monthly fee of $16. So I decided to hop on that during the month of March.

From November 1 – May 31
From June 1 – October 31

For the first 4 days of March, I was on the old plan, while the rest of March I was on the new plan. For the most part, most of my charging was on Super Off-Peak. Keeping track of when I charged, I was able to tell how much I used during which periods to give me an accurate cost. The total damage? I drove 1,123.75 miles and only paid $30.64 to charge my car!

Let’s take a look if I stuck with the other plans. I would have paid somewhere between $85-$100 on the Standard Plan, depending when I got bumped to the higher rate. And I would have paid $83.76 on the original TOU plan I was on.

As always, I like to compare this to what I would have paid if I still owned my Civic. According to AAA, the average gas price in San Diego was $3.323/gallon. I was getting 26.5 MPG on average. So for the same distance, I would have paid $140.91. I saved $110.27 in the month of March!

Month after month, I’m still saving money. Looking forward to see what happens once we move to the Summer months. Let me know how you fared so far! Comment below or tweet at me!


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