Hedges
I See Electromagnetic Fields!
- Joined
- Mar 28, 2020
- Messages
- 20,823
That's why I think the Secure Power feature of Sunny Boys, and batteryless backup of some AIO, is quite valuable.
Battery systems come at quite a premium, also some risk. Secure Power costs an outlet, switch, length of wire.
The trick is manually moving loads to the outlet which is live, or disabling excessive loads so PV/inverter only has to support critical ones.
Better if such support of important loads like refrigerator was automated, but don't see it today. Such an inverter with transfer relay providing dead-man connection to grid and automatic transfer to PV-direct backup is all that would be needed, I think.
While it can't help for certain downed lines or blown transformers, this is why I say vast majority of problem could be solved with a $2 pager wired to interrupt A/C and heater thermostats. Anything that reduces grid capacity but hasn't brought it down can be accommodated by controlling loads. (Actually, pager, relay, GPS and custom software to perform time-randomized on/off durations might be the complete package. Single model deployed everywhere, and radio broadcast with regional location and percentage load curtailment controls it.)
Battery systems come at quite a premium, also some risk. Secure Power costs an outlet, switch, length of wire.
The trick is manually moving loads to the outlet which is live, or disabling excessive loads so PV/inverter only has to support critical ones.
Better if such support of important loads like refrigerator was automated, but don't see it today. Such an inverter with transfer relay providing dead-man connection to grid and automatic transfer to PV-direct backup is all that would be needed, I think.
Having a house with absolutely no power, and fridge/freezer full of spoiled food isn't funny.
While it can't help for certain downed lines or blown transformers, this is why I say vast majority of problem could be solved with a $2 pager wired to interrupt A/C and heater thermostats. Anything that reduces grid capacity but hasn't brought it down can be accommodated by controlling loads. (Actually, pager, relay, GPS and custom software to perform time-randomized on/off durations might be the complete package. Single model deployed everywhere, and radio broadcast with regional location and percentage load curtailment controls it.)