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Thread: Electric bill through the roof!

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    Electric bill through the roof!

    I would like some help in trying to figure out just how much my pool pump is costing me to run. We have reduced our AC usage quite a bit (3 degrees higher during the day and 4 degrees higher at night) but our electric bill has gone up a lot! I need to get a grip on what costs what so I can figure out where the problem is.

    It is a 1 1/2 HP pump.
    The best I can understand our electric company charges $ 0.0999 per KWH, with a "wholesale power cost adjustment .017" (which I thought would be subtracted from the bill but is added instead).

    Please help me figure out the hourly rate to use my pump.

    Thanks!
    24' Seaspray Evolution CLX Above Ground Pool (~13600 gallons)
    Pentair Sand Dollar SD60 / 22.5" filter / Maximum Flow Rate 60 GPM
    Pentair Dynamo Pump 1 1/2 HP

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    Mod Squad Bama Rambler's Avatar
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    Re: Electric bill through the roof!

    You have the same pump I have. It draws about 12 amps. At 120volts that's 1.56KW. At $.1169/KWH (.0999 + .017) you're spending $.1824/hour of run time. or 18.24¢ per hour.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Re: Electric bill through the roof!

    WOW! You're good! And fast! Thanks so much.

    Of course, now I don't know how to feel. I run it around 10 hours a day, so it's costing me around $60 per month. I wouldn't mind so much if we had been able to swim more, but the weather has been terrible the past two weeks.

    Thanks again!
    24' Seaspray Evolution CLX Above Ground Pool (~13600 gallons)
    Pentair Sand Dollar SD60 / 22.5" filter / Maximum Flow Rate 60 GPM
    Pentair Dynamo Pump 1 1/2 HP

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    polyvue's Avatar
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    Re: Electric bill through the roof!

    Quote Originally Posted by Bama Rambler
    You have the same pump I have. It draws about 12 amps. At 120volts that's 1.56KW. At $.1169/KWH (.0999 + .017) you're spending $.1824/hour of run time. or 18.24¢ per hour.
    How does this formula work? If I determine number of amps (from the motor) and voltage (via the power supply), how does one get to kilowatts? (1.56 KW for numberonenole's pump)

    As an aside, when I estimated the electrical bill two years ago for a new pool, I didn't consider the utility fees, state and local taxes and "green energy" fees that are added to each bill and based on usage. Worse, I forgot that in our area electric rates depend on a tier system... the first 1000 kw in a billing period (month) are ~.12 a kw, 1000-1300 are charged at ~.16, anything over 1300 kw is about 20 cents a kw! So, when I run my pumps in December & January (my highest energy months) or turn on my electric heater to warm the spa, lots of that energy falls into the highest tier. Big ouch!
    14,555 gal in-ground 16'x29' white plaster Pool w/spa (2007); Goldline Aqua Logic AQL-PS-8 control w/Aqua Cell 15 Salt Water Chlorination (SWCG); Hayward TriStar 1HP (1.85 SF) main / 1.5HP (1.60 SF) spa pumps; Hayward Swimclear cart filter C4025, ColorLogic LED lights; Tankless SP-18-4 electric heater; Polaris 280 cleaner.
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    Re: Electric bill through the roof!

    kW= (Volts x Amps)/1000

    kWh= Hours x kW
    Current: 28,000G 18'x36' I/G AnthonySylvan Plaster; Waterway 60 sq.ft. DE Filter; 1.0hp x 1.65 SF Two-Speed (B2982) WhisperFlo; 2004-Present
    Previous: 40,000G 20'x40' I/G Koven unlined WWII salvage 5/8" marine steel; Lomart Stainless Sand Filter; 3/4hp Hayward SuperPump; 1946-2003 (managed by me from about 1964)
    Ancient Taylor K-2000, upgraded with Taylor CH, TA, and FAS-DPD, and TFT CYA tests.

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    polyvue's Avatar
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    Re: Electric bill through the roof!

    Quote Originally Posted by polyvue
    How does this formula work? If I determine number of amps (from the motor) and voltage (via the power supply), how does one get to kilowatts? (1.56 KW for numberonenole's pump)
    Quote Originally Posted by Durk
    kW= (Volts x Amps)/1000

    kWh= Hours x kW
    I was able to calculate the approx. cost of my main TriStar pump. 3 hrs per day operation is costing me about $55.00 a month (summer rates, SMUD). That sounds about right. Thanks, Durk.
    14,555 gal in-ground 16'x29' white plaster Pool w/spa (2007); Goldline Aqua Logic AQL-PS-8 control w/Aqua Cell 15 Salt Water Chlorination (SWCG); Hayward TriStar 1HP (1.85 SF) main / 1.5HP (1.60 SF) spa pumps; Hayward Swimclear cart filter C4025, ColorLogic LED lights; Tankless SP-18-4 electric heater; Polaris 280 cleaner.
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    Mod Squad Bama Rambler's Avatar
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    Re: Electric bill through the roof!

    Quote Originally Posted by polyvue
    As an aside, when I estimated the electrical bill two years ago for a new pool, I didn't consider the utility fees, state and local taxes and "green energy" fees that are added to each bill and based on usage. Worse, I forgot that in our area electric rates depend on a tier system... the first 1000 kw in a billing period (month) are ~.12 a kw, 1000-1300 are charged at ~.16, anything over 1300 kw is about 20 cents a kw! So, when I run my pumps in December & January (my highest energy months) or turn on my electric heater to warm the spa, lots of that energy falls into the highest tier. Big ouch!
    Big ouch is right.
    On a three tier system it's very hard to figure out the usage unless you run the same things the same days each month. Normally I just figure 50-50. 50% at the low rate and 50% at the midde rate. 1300kwh is a lot of power. Not saying that you won't exceed it but if you do you got bigger issues than the pool pump. If you know you're going to get into the third tier you can curb your pump back a few hours to help.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Re: Electric bill through the roof!

    Quote Originally Posted by Bama Rambler
    1300kwh is a lot of power. Not saying that you won't exceed it but if you do you got bigger issues than the pool pump. If you know you're going to get into the third tier you can curb your pump back a few hours to help.
    Really? 1300kwh is a lot of power? Many of us in the southern climes regularly breach 1300kwh during the summer. I'm surprised that running the air conditioner doesn't push you over 1300 during the summer months. I know it gets stifling hot & humid over there in S Alabama...
    20K gal IG plaster pool, Manually chlorinated with 6% bleach, 1.5 HP Sta-Rite Dura-Glas II pump, Pentair FNS Plus 48 DE filter, Polaris 280

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    Mod Squad Bama Rambler's Avatar
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    Re: Electric bill through the roof!

    Yeah, What the heck was I thinking. I must have been thinking 2300 because we regularly run over 2000 and have run as high as 2600!!! Glad we don't have a tier system!
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    polyvue's Avatar
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    Re: Electric bill through the roof!

    Quote Originally Posted by Bama Rambler
    If you know you're going to get into the third tier you can curb your pump back a few hours to help.
    I already curb my pump back to ONE hour during the winter!
    Quote Originally Posted by Beez
    1300kwh is a lot of power? Many of us in the southern climes regularly breach 1300kwh during the summer. I'm surprised that running the air conditioner doesn't push you over 1300 during the summer months.
    Here's the deal: California has much lower humidity in summer than the South East; still, many people use their air conditioners here during hot summer afternoons. I rarely do (personal preference--I use ceiling fans.)

    1300 kWh of electricity is not unusual during the winter for homes that are all-electric (as is mine; no natural gas or oil available where I live.)

    Greg
    14,555 gal in-ground 16'x29' white plaster Pool w/spa (2007); Goldline Aqua Logic AQL-PS-8 control w/Aqua Cell 15 Salt Water Chlorination (SWCG); Hayward TriStar 1HP (1.85 SF) main / 1.5HP (1.60 SF) spa pumps; Hayward Swimclear cart filter C4025, ColorLogic LED lights; Tankless SP-18-4 electric heater; Polaris 280 cleaner.
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    View of spiral galaxy in Ursa Major NGC6217 - Hubble Telescope 2009

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    Re: Electric bill through the roof!

    I comiserate - the top tier in the bay area is about $0.44/kwh... I'm ALWAYs well into the top tier, year around.

    - Jeff
    ~45Kg Pool with attached Spa, NSP-72 DE, Minmax 400 Heater, Tahoe Blue Pebbletech, Jandy SWG via Aqualink RS-8, The Pool Cleaner (black)
    Pumps: X3 Hybrid Pump (switches to SPA), 2HP Spa (additional, when SPA is on), and a 1HP For Waterfall
    8, 4x12 Solar Panels on the roof of the pool-house (~12' up)
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    Re: Electric bill through the roof!

    Quote Originally Posted by taekwondodo
    I comiserate - the top tier in the bay area is about $0.44/kwh... I'm ALWAYs well into the top tier, year around.

    - Jeff
    GREAT GOOGLY MOOGLY! ...I was hating my $400/month electric bills this summer...don't know what I'd do with 'em year round...
    20K gal IG plaster pool, Manually chlorinated with 6% bleach, 1.5 HP Sta-Rite Dura-Glas II pump, Pentair FNS Plus 48 DE filter, Polaris 280

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    Cherie's Avatar
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    Re: Electric bill through the roof!

    Switching out our single-speed with a 2-speed cut our bill significantly. We were paying an extra $90/mo to run the pump 10/hr days on the single-speed. We went from an extra $90/mo to $30/mo and we run our 2-speed 24/7 on low.
    32x16 buried Doughboy, 4' shallow - 7' deep
    Pentair Dynamo 1 hp, 2-speed - Pentair 150# SD40 w/zeolite (75#)
    One skimmer/two returns/Aquabot Turbo T2

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