mrzed001
Voice of reason
Hi
I am searching for a solution.
I want to make a grid tie system, that sells power to the grid. And a separate UPS system with MPP Solar inverter and lithium batteries.
The possible grid tie inverters are limited, so no MPP Solar for example, but many Huawei, Fronius, SMA, Solaredge, SAJ, .... also no hybrid inverter is allowed by utility (EU).
The main problem is when there is a blackout (no power from grid) the grid tie inverters stop. Does not produce power (not to shock linemen).
And so no solar power can be used by the MPP Solar inverter to store in the battery or used directly by the house.
(I can not use the MPP Solar's PV possibility, because I can not use it grid tie ... I need to use a separate grid tie inverter)
Is there a solution (manual is alright) so I could shut down grid connection, and produce a sinus wave ... so the grid tie inverters start generating power again ? (in an off grid situation)
I saw some videos but nothing serious.
This guy used a 1000W pure sine wave inverter to start grid tie inverters (like a micro grid). But had nothing to stop the backfeed from grid tie to the 1000W inverter, so it does not seem very reliable
I know there is the Victron 8000, but that cost a lot (and not compatible with DIY battery cell-s).
Any other solution maybe ?
Thanks
I am searching for a solution.
I want to make a grid tie system, that sells power to the grid. And a separate UPS system with MPP Solar inverter and lithium batteries.
The possible grid tie inverters are limited, so no MPP Solar for example, but many Huawei, Fronius, SMA, Solaredge, SAJ, .... also no hybrid inverter is allowed by utility (EU).
The main problem is when there is a blackout (no power from grid) the grid tie inverters stop. Does not produce power (not to shock linemen).
And so no solar power can be used by the MPP Solar inverter to store in the battery or used directly by the house.
(I can not use the MPP Solar's PV possibility, because I can not use it grid tie ... I need to use a separate grid tie inverter)
Is there a solution (manual is alright) so I could shut down grid connection, and produce a sinus wave ... so the grid tie inverters start generating power again ? (in an off grid situation)
I saw some videos but nothing serious.
This guy used a 1000W pure sine wave inverter to start grid tie inverters (like a micro grid). But had nothing to stop the backfeed from grid tie to the 1000W inverter, so it does not seem very reliable
I know there is the Victron 8000, but that cost a lot (and not compatible with DIY battery cell-s).
Any other solution maybe ?
Thanks