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real time electric rate pricing service in Chicago

hr Member Posts: 6,106
allows you to purchase power by the hour. Rates may vary from a low as 1 cent to as high as 36.5 based on time of use.


ComEd expects that 110,000 customers may join the program over the next 4 years. According to an article, penned by John D Wagner in this months Green Builder mag.

Recently when I was in Dallas I saw a front page story about the local utility offering off peak rates to residential customers.

Now where's that electric boiler? :)

hot rod

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  • Spudwrench
    Spudwrench Member Posts: 47
    variable rates

    Hot rod-

    Do you have a particular scheme to take advantage of the variable rates?

    A. using the electric boiler when rates are low to heat a storage tank?

    B.) lock out your gas boiler during the hours when it's less expensive to heat with electricity- sort of running gas and electric in parallel.

    C.) Charge storage batteries during the off peak hours, then use an inverter to drive the electric boiler whenever you need to?

    I'll be interested to hear what your plan is.

  • Mitch_4
    Mitch_4 Member Posts: 955
    got a buddy doing that

    in Nova Scotia, Canada. They are using an step modulating electric boiler and in slab radiant.

    Programmable stat programmed around electricity rates and not occupancy, and letting the thermal mass carry them through peak rate times.

  • Kevin_in_Denver_2
    Kevin_in_Denver_2 Member Posts: 588
    standardizing off peak rates

    It would be nice if the utilities offered standard off peak rates. Right now the control scheme is highly dependent on the pricing structure, which is a variable that the HVAC contractor shouldn't have to re-learn in every jurisdicton.
    Superinsulated Passive solar house, Buderus in floor backup heat by Mark Eatherton, 3KW grid-tied PV system, various solar thermal experiments
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