TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker and becoming a Supporting Member. For more info: Support TMC

Nevada EV Energy Rates/Plans...And You

Discussion in 'Mountain/Southwest' started by Buster1, Jun 22, 2017.

  1. Buster1

    Buster1 Member

    Joined:
    Oct 13, 2016
    Messages:
    171
    Location:
    Las Vegas
    I geeked out the past few days in effort to figure out which NV energy plan is best for me.

    In case you didn't know, NV Energy offers two plans for southern NV that allows owners of EVs (electric vehicles) to have different energy rates and varying kWh at different times of the day. A third plan is actually "no plan" and you pay $0.11 / kWh 24/7, every day of the week, every month...it never flexes. Call that the Basic plan I suppose.

    Here's a link for your own viewing.
    Electric Vehicle Rate | NV Energy

    So do these EV plans really save you money? I would assume so...right!? Why else would NV Energy offer them to us, the adopters of these new and space age electric vehicles. I think what you find and what I found, will be interesting. If you'd like to see how I did it, and what I did, keep on reading.

    First, I broke down the different times of the day that Option A and Option B changed rates per kWh. I made a simple spreadsheet and started recording the kWh reading off my meter at those times. I did this for four days and at the end I came up with an average kWh used for each "window."

    Option A has the following rates, from June thru Sept.
    10p - 6a - $.05
    6a - 1p - $.06
    1p - 7p - $.36
    7p - 10p - $.06

    The other eight months of the year have a flat rate of $0.04 per kWh...24/7!!! That's pretty cool!

    Option B has the following rates, from July thru Aug only.
    10p - 6a - $.05
    6a - 2p - $.06
    2p - 7p - $.50
    7p - 10p - $.06

    The other ten months of the year have a $0.04 to $0.05 per kWh daily rate.

    Lastly, the final or third option we discussed above is the "basic" rate we all get of $0.11 per kWh 24/7 365 days a year. We're currently on that plan as we don't have a Tesla yet.

    Okay, so to do this you have to collect data at the times when the rates change. Basically at 6a, 1 pm, 2pm, 7pm, and 10pm I went out and wrote down the meter reading. Doing the math later can let you know how many kWh you "burned" doing the various windows.

    To keep this from getting too math heavy, I will summarize my findings. Of note, we collected data in late June this past week and we had local temps in the 108dF to 115dF range...so needless to say it was HOT! My data would seem to be for a worst case hot summer and after collecting four days worth, I was able to get average kWs burned for the various windows. I also found that we used about 105 total kWs every day (24 hrs) at the house.

    I found that for me Option A was THE MOST EXPENSIVE OPTION. Paying $.36 cents per kW from 1p to 7p was a huge cost, multiply that by four months of hot days here in Vegas and it added up fast. I also included historical winter kWh usage and multiplied that by the Option A rate of $0.04/kWh and then multiplied that by eight months. In total, this was the most expensive plan for my house at over $500 per year more than the next plan. Annual Cost: $2837

    I found that the "no plan" baseline plan that we are currently on, was the second most expensive option, and $500 cheaper than the Option A. Simple kWh per day, using our numbers and historical winter usage, multiplied by $0.11 a kWh came out with numbers we are used to seeing. Annual Cost: $2386

    Option B was the cheapest option, and about $200 cheaper than our current basic no frills plan above. Note you are paying $0.50 a kWh from 2p - 7p. That is high! Our projected bill for the hot months would be $750 a month! But here is where things differ. It's important to note that Option B only goes for two months of the year (July/Aug). Sure, you're paying a huge electric bill for those two months, but then for the next 10 months of the year you are on a simple $0.04 or $0.05 per kWh plan...for 10 months! I used some historical numbers as well as my "hot month" averages just recorded for some data points on the other 10 months...but the bottom line is that it works out to be the cheapest...for us. Annual Cost: $2189

    Please let me know if you have any questions or thoughts on how to do this yourself. I'd encourage it. I was surprised to actually see the figures based on real world data matched to the specific "windows" and rates given my NV Energy.

    See what works for you, I'm curious to hear. Thanks and happy electric driving!

    Buster
     
    • Like x 1
  2. ProphetM

    ProphetM Member

    Joined:
    Jun 1, 2015
    Messages:
    301
    Location:
    Las Vegas, NV
    Wow, thanks for all of that work! I hope it is helpful for folks. As an aside, that seems like a ridiculous amount of energy usage to me. It's roughly double what I used in my last billing cycle. I've got two kids at home during the day since school is out, so for about half the billing cycle we've had to keep the AC at a reasonable temperature all day long. I am in Las Vegas also. I must assume you've got a pretty big house!

    Based on this I am really glad I went ahead with getting solar when I did. I pretty much sought out SolarCity when I heard they were starting up here, and got a system set up near the beginning of 2015. As such, I have been grandfathered in to NV Energy's net metering plan that they had before the whole solar-killing rules change. Thankfully I have a large roof and SolarCity put in a 9kW system, which outpaces my usage for almost the whole year. I've been building up kWh credit since net metering was brought back at the beginning of the year, and with my last bill I still managed to just beat my usage with my generation. I'll probably use up some of those credits for my next 2 bills before being a net generator again after the kids head back to school.

    It will be very interesting to see what happens to the bill once I have a Model 3 to charge! I don't know if it will push me into net user territory or if I will remain a net generator overall.
     
  3. Buster1

    Buster1 Member

    Joined:
    Oct 13, 2016
    Messages:
    171
    Location:
    Las Vegas
    Well we have a 2500 sq/ft house and we keep it comfortable, but not overly so. We even have Nest thermostats which help a little. 105 kWh is definitely a summer high per day. Our winter usage is closer to 35 kWh per day.

    Definitely measure your usage and plot it against the NV Energy rates and see what you get. I'm also told that after a year of using one of their plans, if it ends up being more expensive they will switch you back to the old plan. So that's good.

    Is like to hear more about your solar and how charging an EV goes with that. We've considered installing solar, but we won't be in this house long enough to recoup the expenditures of installation. At least that's the plan.
     
  4. ItsNotAboutTheMoney

    ItsNotAboutTheMoney Well-Known Member

    Joined:
    Jul 12, 2012
    Messages:
    5,342
    Location:
    Maine
    If you want the really cheap rates off peak, you have to take the expensive rates on peak.
    One positive in paying the very high peak rate is that it gives you a stronger incentive to improve insulation and cooling efficiency, as well as install solar.
     
  5. ProphetM

    ProphetM Member

    Joined:
    Jun 1, 2015
    Messages:
    301
    Location:
    Las Vegas, NV
    Since I've had my panels for over 2 years, I'm part of the grandfathered net metered group. I am not sure what the new rules are for installations now, I expect there would be a lot of numbers to run to figure out just what the advantages are for a new customer.

    For my own billing under net metering, I am given a straight credit in kWh for the energy that I send to the grid, and if that amount is less then I pull from them, my bill is very small - just the $12.75 basic service charge for being connected, plus a few small kWh-based line items that I assume must be charged for each kWh delivered to me. These kWh charges amounted to less than $3. So my bill from the power company was just $15.

    My deal with SolarCity is a lease - I don't own the panels but that means I also don't have to maintain them. I paid nothing for the setup. The deal is that I pay SolarCity for the power they generate. Some of that power is used by me directly, and the rest is pushed to the grid to appear as a credit on my NV energy bill, in kWhs. I'm not totally sure what this will mean for EV charging, other than that I will want to charge the car during daylight hours when I can pull the power directly from the panels. Unless I start outpacing the generation from the panels, my SolarCity and NV Energy bills should both remain unchanged. If I do start using enough power to eat up my credit, my NV Energy bill will go up.
     

Share This Page