ceb58
Senior Member
- Location
- Raeford, NC
Has any one had any experience with Generac's PWR transfer switch using the solar as the emergency backup source? Question is mainly the wiring between the inverter and ATS.
Isn't this a bit rare? Are there really inverters that can load follow in real time without an energy storage system?You would have to use a solar system designed for off-grid usage. Most solar systems are designed to work in tandem with utility power and automatically shut-off when no utility power is available. This keeps them from backfeeding utility lines which endangers line workers. If you used such an off-grid system, it would be generating all the time, but you would not be able to utilize that power unless there was a utility failure (or unless you have some really fancy switching arrangement).
Assuming you still want to use an off-grid solar system as emergency power, then just wire the output of the inverter to where the generator normally goes on the ATS. Since the solar is generating all the time, no startup or shutdown signals are required. You would need a battery system on the solar side to handle an outage after dark (or even past the peak). Your solar system would be required to handle all the load or load shed.
This is the way the system is wiredThe inverter would not load follow. It would just produce as much power as it could based on the input. A battery (energy storage) system is required to meet the load requirements since solar systems only produce peak power for a few hours per day (and zero power at night).
This is the way the system is wired
normal utility coming in on N1 N2 to the transfer switch, inverter feed, with battery bank tapped off of N1 N2, protected load feed from inverter to E1 E2 of transfer switch and T1 T2 to main distribution panel. Under normal situation solar would back feed grid for credit. Under emergency solar would feed house only.
Isn't this a bit rare? Are there really inverters that can load follow in real time without an energy storage system?
Has any one had any experience with Generac's PWR transfer switch using the solar as the emergency backup source? Question is mainly the wiring between the inverter and ATS.
Did you take their pwecell sales and installation class?I will be soon. Are you doing the whole generac pwrcell system?
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Did you take their pwecell sales and installation class?
How are they delivering the class?