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Maine - CMP Delivery TOU Rates

Discussion in 'New England' started by ItsNotAboutTheMoney, Aug 2, 2016.

  1. ItsNotAboutTheMoney

    ItsNotAboutTheMoney Active Member

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    Maine
    Maine PEV owners in CMP areas might be interested in this, especially if you're charging overnight and driving a bunch of EV miles.

    I'm on CMP and I have the TOU Delivery (A-TOU) tariff. (I have standard offer supply.) My electricity is about 80% off-peak.

    I was looking at my June-July electricity bill and cursed as I saw price changes that diminished my savings compared to the fixed A tariff.

    So, aware that there are two additional optional TOU rates (A-TOU-OPTS), out of curiosity, I took at look at those. And what should I find but a very important change from when I last looked: "Service Fee: $10.00"
    I don't know when it happened, but in previous years when I've looked the monthly fees had been much higher, making it impossible for me to recover the costs. In a spreadsheet I created in March 2014, for example, the Supersaver and Savings Plus service fees were $30.49 and $16.64 respectively!

    A potentially important difference on the A-TOU-OPTS rates, compared to the A-TOU rate is that the Shoulder period Monday to Friday 12pm to 4pm is apparently charged at the _lower_ rate.
    With a $10 fee instead, based on our use over the past year with 15.24% peak, 4.71% shoulder, and 80.05% off-peak, before sales tax, compared with the regular A tariff, the Savings Plus would save us $78 per year, and the Supersaver $50.50 per year, while the regular TOU would now only save $16.39 per year.

    So for any Maine PEV owners with CMP service, I think you might want to look into the TOU rates. It says that it's subject to meter availability. I had TOU meters installed when they trialled TOU supply anyway.

    For reference, the CMP TOU periods are:
    Off-peak: 8pm to 7am weekdays plus all weekends and official holidays (not observance days)
    Shoulder: 12pm to 4pm weekdays
    Peak: 7am to 12pm, 4pm to 8pm weekdays

    Delivery Pricing schedules are here:
    CMP | Pricing Schedules
     
  2. ItsNotAboutTheMoney

    ItsNotAboutTheMoney Active Member

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    #2 ItsNotAboutTheMoney, Aug 2, 2016
    Last edited: Aug 2, 2016
    From the pricing schedules:
    Fee is per month.
    The per kWh prices below are for the delivery component only.

    Code:
    Tariff       Fee    Peak      Shoulder  Off-peak
    Fixed        $9.55* $0.066541 $0.066541 $0.066541
    TOU          $10.00 $0.111106 $0.111106 $0.052423
    Supersaver   $10.00 $0.188870 $0.037243 $0.037243
    Savings Plus $10.00 $0.136036 $0.043144 $0.043144
    
    Again:
    Off-Peak is weekends plus all official holidays (not observance days)
    Peak is non-holiday weekdays 7am to 12pm, 4pm to 8pm
    Shoulder is non-holiday weekdays 12pm to 4pm
    * Fixed Tariff A effective fee deducting delivery fee of the included 50kWh at Tariff's per-kWh rate.

    I'm going to call CMP about switching to the Savings Plus rate. I already do some shifting of loads with laundry and dishes done off-peak. Just sometimes it's a bit limiting and it would be pretty cool to get cheaper charging and other heavy loads during the shoulder period. :)
     
    • Informative x 1
  3. Bangor Bob

    Bangor Bob Member

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    Bangor, ME
    Remember that's just the transmission rate, you still need to add-on the $0.07/kWh generation charge (or whatever the standard offer rate is this period).

    About a year ago I downloaded my hour-by-hour usage from their page and did a spreadsheet to evaluate which rate was best for us at camp. Without a a timer for my hot water heater and a super-heavy-duty timer for my hot tub (which was going to be a couple hundred bucks), it wasn't worth switching off the "A" (no TOU) rate plan. Granted, a full charge on the Volt is only 12kWh.
     
  4. ItsNotAboutTheMoney

    ItsNotAboutTheMoney Active Member

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    As I noted in my 2nd post, that's delivery (as they call it) only. But since the supply price is fixed they're the only numbers needed to determine whether it's worth it.

    I've called CMP and should be switching to the Savings Plus rate soon, hopefully before my next reading.

    Oh, I also pay for the Maine Green Power credit purchase thing, but given their miserable uptake I think I'm going to abandon it soon.
     
  5. ItsNotAboutTheMoney

    ItsNotAboutTheMoney Active Member

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    #5 ItsNotAboutTheMoney, Aug 12, 2016
    Last edited: Aug 12, 2016
    OK, I've now switched over to the Savings Plus TOU rate for the next bill.

    Supply price is fixed. The March to December supply price is currently $0.064430/kWh
    So price including delivery for the first 750kWh in the month.
    Add 5.5% sales tax for any kWh over 750kWh in the month. At the moment we only get above 750kWh in the summer months, and being away for two weeks in July kept us under last month. Of course, when/if I get a Model 3, that'll/d be pushing us over 750kWh every month.

    Code:
    Tariff	     Fee    Peak      Shoulder  Off-peak
    Fixed *	     $9.55  $0.130971 $0.130971 $0.130971
    TOU          $10.00 $0.175536 $0.175536 $0.116853
    Supersaver   $10.00 $0.253300 $0.101673 $0.101673
    Savings Plus $10.00 $0.200466 $0.107574 $0.107574
    
     

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