Not Aerosmith
Solar Enthusiast
- Joined
- Sep 8, 2022
- Messages
- 389
I already have (3) 5 KW Fronius grid-tie inverters with 57 solar panels that have been working flawlessly for almost 4 years. However, I live where power outages are several times a week. I want to add an ATS and backup power, but using a solar inverter with batteries not gasoline generator.
My intentions are to buy hybrid inverters not off-grid inverters. My reasoning is that hybrid inverters could replace the grid-tie inverters if it ever becomes necessary (redundancy), whereas off-grid inverters can't sell back to the grid. Over 2/3 of the power generated is stored on the grid to be used as needed when solar is not available. Most hybrid inverters only provide backup power for a critical load panel not whole house.
The new SunGoldPower IP6048 and MPP Solar LVX6048-WP indicate they can provide power for the whole house with up to 9 hybrid panels in parallel. Each hybrid inverter needs 10 KW of batteries. If this is only backup power, I can grow the system by adding a hybrid inverter with 2 batteries in stages as I feel more comfortable with them. From what I have read and seen the first shipment of MPP Solar hybrid solar inverters had lots of issues and the verdict is still out on the newly release SunGoldPower IP 6048.
I'm afraid to interface a grid-tie system that works with new technology that seems to have too many issues and could destroy what is working. I prefer to keep the two systems separate, until the new hybrid technology seem stable and reliable without so many issues. If I use an automatic transfer switch (ATS), they are separate systems. When the ATS switched to the hybrid panels, there is no grid power, so the internal ATS in the hybrid inverter will isolate the grid.
Have anyone else actually converted an existing grid-tie system by adding hybrid inverters, batteries and ATS? Do I have a viable solution for what I'm trying to do or not? I'm an engineer, but solar is not my expertise. Are there better whole house hybrid inverters than the one I listed?
My intentions are to buy hybrid inverters not off-grid inverters. My reasoning is that hybrid inverters could replace the grid-tie inverters if it ever becomes necessary (redundancy), whereas off-grid inverters can't sell back to the grid. Over 2/3 of the power generated is stored on the grid to be used as needed when solar is not available. Most hybrid inverters only provide backup power for a critical load panel not whole house.
The new SunGoldPower IP6048 and MPP Solar LVX6048-WP indicate they can provide power for the whole house with up to 9 hybrid panels in parallel. Each hybrid inverter needs 10 KW of batteries. If this is only backup power, I can grow the system by adding a hybrid inverter with 2 batteries in stages as I feel more comfortable with them. From what I have read and seen the first shipment of MPP Solar hybrid solar inverters had lots of issues and the verdict is still out on the newly release SunGoldPower IP 6048.
I'm afraid to interface a grid-tie system that works with new technology that seems to have too many issues and could destroy what is working. I prefer to keep the two systems separate, until the new hybrid technology seem stable and reliable without so many issues. If I use an automatic transfer switch (ATS), they are separate systems. When the ATS switched to the hybrid panels, there is no grid power, so the internal ATS in the hybrid inverter will isolate the grid.
Have anyone else actually converted an existing grid-tie system by adding hybrid inverters, batteries and ATS? Do I have a viable solution for what I'm trying to do or not? I'm an engineer, but solar is not my expertise. Are there better whole house hybrid inverters than the one I listed?
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