1. We are sorrowed to report that one of the Founding Members has passed on. Dee (Righthand) is well remembered as contributing much to the operation of SurvivalMonkey, and is already greatly missed. Little lady, big person.

Resource Solar Load Analysis Calculator2 2015-08-04

Solar Load Analysis Calculator 2

  1. Ganado

    Ganado Monkey+++

    Mountainman, Tully Mars, wnn and 2 others like this.
  2. T. Riley

    T. Riley Monkey+++ Site Supporter++

    I plugged a wattmeter into my inverter and then into a wall outlet with a double male cord. This fed half the breakers in my box. Turned everything off until the wattmeter read zero watts. I then went around turning on everything that ran on 110 one at a time and recorded the watts each light, fan, blower, etc drew. Then did the same with the other half of the panel. Ended up with a list of everything and the watts drawn. I was surprised that two identical bulbs and fans would vary as much as they did. Most drew slightly less than their rating. Tvs, DVDs, computers had to be unplugged to get to zero.
    Tully Mars, Ganado and BTPost like this.
  3. wnn

    wnn Guest

    Yeah volts x watts ( printed on the item) = amps fridge or a/c xs by 3 for compressor startup
  4. BTPost

    BTPost Stumpy Old Fart Snow Monkey Moderator

    Opps, Try Watts Divided by Volts equals Amps.... P = I*E
    techsar, Ganado and Cruisin Sloth like this.
  5. bagpiper

    bagpiper Heretic

    I would suggest, that you gain at least a minimal understanding of POWER FACTOR.

    BT... VA=I*E (ie VoltAmps)
    P is only 'pure', when VA * (Pf = Unity, 1) (ie PURELY resistive loads.)
    Especially when running a large inverter, you might run into some weird effects with harmonics and these new lightbulbs...
    not to mention motors and computer power supplies...

    Some engineers will tell you the truth... that, electricity is pure smoke, and if you let it out, it'll never work again... ;)

    Power Factor Calculation and Correction
survivalmonkey SSL seal        survivalmonkey.com warrant canary