Off Grid "Mad Max" Power Systems

 There is a noted interest in creating off grid power systems.

And especially in utilizing older equipment that can be gotten nearly for free, or free.

We are now in the age of EV batteries ending up in junk yards and no way to recycle them or dispose of them.   These can be useful for an off grid power system even if they are not much use to propel a car anymore.    The Honda's have many voltage taps so you can pull various voltages from 12 up to 72 from the batteries.

Here is a thread from DIYsolarforum that has very interesting discussions. 

In using older microinverters, the trick is to have an AC Sine Wave of appropriate Voltage and Frequency to that the microinverter find it acceptable to follow. 

Modulating the power of the microinverters to match the facility load is important.

Having a series of microinverters with varying trip out points could be a way to partly turn off a set of micros, while leaving a group of micros with a wider looser grid profile to keep going.

DIY Site

https://diysolarforum.com/

Specific Enphase / Offgrid Scenario

https://diysolarforum.com/threads/building-off-grid-system-to-fool-enphase-inverters-without-grid-connection.8028/

Download the pamphlet at link below the image

 

https://app.box.com/s/ebyywlcpa9jd5geytyr17xfislaie2g0 

 

https://app.box.com/s/rz064s1zd1nnotxdeq9umwi60fv8fcjy

 

Outback frustration with getting details on the M215 Grid Profile Settings. 

https://www.reddit.com/r/solar/comments/2jx2cy/enphase_m215_issues_poor_ac_grid_detection_anyone/