Direct Grid Technologies Microinverter

Toner Duckpin
Toner Duckpin Registered Users Posts: 7 ✭
in Solar Product Reviews & Opinions #1
It looks like enphase has some competition. The dc input voltage is higher than the enphase model. Is anyone going to be trying these things when they come out? website: www.directgrid.com.
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  • Solar Guppy
    Solar Guppy Solar Expert Posts: 1,989 ✭✭✭
    #2
    Re: Direct Grid Technologies Microinverter

    CEC weighted efficiency of 92% and maximum input current of 2.35 amps

    http://www.directgrid.com/index_files/PDFs/dgasmart.pdf
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  • GreenerPower
    GreenerPower Solar Expert Posts: 264 ✭✭✭✭✭✭
    #3
    Re: Direct Grid Technologies Microinverter

    Hmm! 20-year guarantee, 120VAC grid-tie. The power co is going to be busy tracking down guerilla installs.
    They use the same capacitor brand as the Enphase.
    GP
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  • Toner Duckpin
    Toner Duckpin Registered Users Posts: 7 ✭
    #4
    Re: Direct Grid Technologies Microinverter

    I found this interview on youtube.

    http://www.youtube.com/watch?v=RSoXUx1jfoA
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  • halfcrazy
    halfcrazy Solar Expert Posts: 720 ✭✭✭
    #5
    Re: Direct Grid Technologies Microinverter

    they really limited there options when they gave that high of an input voltage and that low of an input current
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  • Photowhit
    Photowhit Solar Expert Posts: 6,006 ✭✭✭✭✭
    #6
    Re: Direct Grid Technologies Microinverter
    halfcrazy wrote: »
    they really limited there options when they gave that high of an input voltage and that low of an input current

    Wow with these specs;

    Rated input voltage range 150V –188V
    Max. DC input voltage 190V
    Nom. DC input current 1.23A 1.75A
    Max. DC input current 1.6A 2.35A

    They have a pretty small target group!

    For What It's Worth - Enphase was NOT the first doing a mcrosine inverter, I doubt even Trace's Micro sine was the first,

    Here's a Legacy PDF from Kyocera that show the panels mounted Trace Microsine inverter (2/3rrds down on right);

    http://kyocerasolar.com/pdf/specsheets/linetie.pdf

    Here's a PDF of a 1998 HomePower "guerrilla solar" article, this was a regular feature article of HomePower in the earlier years when POC and authorities didn't know what to do with us solar wingnuts!

    http://www.pha.jhu.edu/~tunison/renew/docs/guerrilla.pdf

    The article actually states "These inverters had been around for a while before Trace picked up the US rights. They are not Trace-designed inverters"

    This also shows the Micro sine inverter just plugged into an outlet with a male plug, though I don't know if that was Traces intent, These did have UL listing!!!
    Home system 4000 watt (Evergreen) array standing, with 2 Midnite Classic Lites,  Midnite E-panel, Magnum MS4024, Prosine 1800(now backup) and Exeltech 1100(former backup...lol), 660 ah 24v Forklift battery(now 10 years old). Off grid for 20 years (if I include 8 months on a bicycle).
    - Assorted other systems, pieces and to many panels in the closet to not do more projects.
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