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Problem installing PV system with battery and common generator

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  • #16
    Originally posted by PNW_Steve View Post

    What is it that is different from the power generated from a "prime power" generator that keeps it from appearing the same as utility power?....
    Impedance. A generator has much higher impedance than a Grid. Some of the grid qualification testing involves frequency stability and some involves Grid Impedance. It's testing for 5 minutes, and only needs one fault to reset the clock. And if it does somehow pass, and your loads drop off, how does your generator deal with 5 or 10kw of power being pumped into it ? Will the inverter shut down first, or will the generator fry ?

    Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
    || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
    || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

    solar: http://tinyurl.com/LMR-Solar
    gen: http://tinyurl.com/LMR-Lister

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    • #17
      I forgot about impedance... Inverters that are AC coupled are able to simulate this as well.

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      • #18
        Originally posted by Ben25 View Post
        I forgot about impedance... Inverters that are AC coupled are able to simulate this as well.
        No need to simulate it. A bimodal inverter has batteries thus giving it all it needs to simulate a valid grid for the inverter that is AC coupled.

        OutBack FP1 w/ CS6P-250P http://bit.ly/1Sg5VNH

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