Most grid-tied systems are for net metering. But when the grid is down, there is no power reference, and the inverters don't work. So, I could have 6 kW solar PV installed, but get no power when the grid is down.
I know of a solution, but does Greentech Renewables have a solution, retrofit?
Comments
- Determine whether your grid tied inverter is warranted to work with an artificial grid frequency.
- Establish a sub-panel with circuits for your protected loads and your grid-tied inverter(s).
- Figure out how much power you need for the protected loads (kW)
- Figure out your battery bank size (kWhr)
- Buy and install (between the protected panel and the main panel) an inverter/charge controller designed to AC couple to a grid tied inverter.
If you post some information on your existing system, we can make some suggestions on compatible equipment.same question
my system.......2 spr4000m......
2 strings of 9 spr 230
2 strings of 8 spr 230