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Thread: Economics of SWG in high electricity cost area?

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    Economics of SWG in high electricity cost area?

    Here is Northern California bay area, PG&E charges 37 cents per KWH for anyone who uses any real amount of electricity (the more you use, the more they charge per KWH). Given this super high cost, does SWG still make sense? Given the initial cost of purchase and installation (assuming about $1000) and the cost of replacing the cell every 5 years (another $400), and the high cost of electricity, I am starting to wonder.

    Any idea how much power a 40,000 gallon cell uses in terms of KW?

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Economics of SWG in high electricity cost area?

    A SWG uses very little electricity, typically less than 1 kWh per day, or roughly $11/month at your rates. This varies somewhat by brand, but they are all around there, and not in the same league with things like pumps.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: Economics of SWG in high electricity cost area?

    Thanks! There appears to be a lot of misinformation floating around on how much electricity SWG use. There are a few sites I have run across that imply they use as much as a single speed pump. Thanks.

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    chiefwej's Avatar
    Join Date
    Jun 2011

    Re: Economics of SWG in high electricity cost area?

    Those who have an agenda against SWGs have used operating cost figures that include the cost of running the pump as well as the electricity for the SWG itself.
    Tucson, AZ
    19k gallon Pebble Tec play pool/spa, Pentair Intelliflo VS (3 hp) 011018, Super II 2hp (for spa), Aqua Rite T-15 SWG, Pro Grid 60 DE filter, Hayward H400 & Heliocol Solar heating, A&A infloor system, fill water w/high CH and TA, 50 ppm borates,TF-100 test kit

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