[RE-wrenches] Chilicon Microinverters AC Coupled with Generators

[Jay]

Installing PV/inverters to a generator is a common practice. 
One must make sure you don’t ever have more PV/inverter than load to prevent either generator damage or shut down. 

I worked on a big project that did actually shut the generator down, it tried to run backwards as the PV power exceeded the load. Didn’t damage the generator, 125kw. 

The main reason is to reduce fuel burn, but how how it is reduced has a number of variables:  age, fuel type, size, where in the power band it’s operating , and if a larger newer diesel ( they have a very different fuel burn curve than older ones are which works very well with solar). 

SMA and others have full packages that communicate with the generator for really large systems like mines etc. 

Not knowing the size/type of the PV/generator and the variables, hard to say if there would be much fuel savings. 

Jay

 

> On May 25, 2021, at 9:29 AM, Jerry Shafer <jerrysgarage01 at gmail.com> wrote:
> 
> 
> Not kidding, but not in reference of wildfires either. Installing inverters directly connected to the gennys is in the past lead to smoke. 
> Jerry
> 
>> On Tue, May 25, 2021, 8:33 AM Dave Angelini Offgrid Solar <offgridsolar at sti.net> wrote:
>> In case you are near me and not kidding Jerry, I see smoke alot of it!  For others during fire season this is the tool I use for finding the fire source. Much faster than anything else I have tried. The upper right of the display shows a red area that is the fire.
>> 
>>  https://caltopo.com/map.html#ll=37.62021,-119.98856&z=10&b=mbt&a=modis_vp%2Cgoesfire
>> 
>> Sorry Jason! I will look at your link.
>> 
>> Dave Angelini Offgrid Solar
>> "we go where powerlines don't"
>> http://members.sti.net/offgridsolar/
>> e-mail  offgridsolar at sti.net
>> text 209 813 0060
>>> On Tue, 25 May 2021 08:22:51 -0700, Jerry Shafer <jerrysgarage01 at gmail.com> wrote:
>>> 
>>> I can smell smoke from here
>>>  
>>> 
>>>> On Tue, May 25, 2021, 6:48 AM Jason Szumlanski <jason at floridasolardesigngroup.com> wrote:
>>>>  
>>>> Has anyone tried to AC couple these microinverters with a generator output to reduce fuel consumption? They claim it can be done with their "volt-watt" mode. I'm skeptical but interested nonetheless. 
>>>>  
>>>> Jason Szumlanski
>>>> Florida Solar Design Group
>>>> NABCEP PVIP
>>>> 
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