Hi all.
I am looking for someone who understands a bit more about solar and electrical stuff than I do, to give me a reality check on an idea i have.
I have a stand alone / off grid system:
500w of panels
800w inverter
30a charge controller
440ah/c100? of batteries ( 4x trojan t105 )
Id like to try out a grid tie setup. Grid tie inverters simplify the amount of kit needed, dont need a dedicated controller , batteries or inverters. Just panels + grid tie inverter.
However, a grid tie inverter requires an regular AC source ( aka the utility ).
What if I use my off grid setup as a utility. I know that will work to a point. ( i know its technically possible ).
Understand phase sync and those bits and feel confident the kit I have is up to that job.
Would the grid tie system supplement ( relieve the load on my inverter ) and supply power to the 'utility' , lessen load on my battery bank and inverter ? ( as it does when you connect it to a ' real ' utility provider ). is it safe ?
I cannot see why not, but i am out of knowledge at this point, I have of course tried googling the subject but hit allot of stuff that isnt what im looking for.
That leads me to believe that there maybe a problem with my logic. I very much doubt I have stumbled onto some new way of doing things , but im curious to fill in the blanks and at least under stand the technical reasons why it wont work out as i want ?
So .. can anyone put me straight ?
Thanks very much !