I have a 5kw Solaredge HD inverter and have been exploring affordable very basic grid-down options, just out of curiosity.
Originally, Solaredge intended to offer "Optional: Self-Sustaining Power - produce up to 1.5kW directly from PV during grid failure" but now this option is in doubt. goo.gl/WBG6hJ
This would have been the perfect backup solution for me. Serve basic needs - since it covers the worst case scenario with minimal up front costs.
Looking at AC coupled Battery solution - what *if* my battery system size is so small, say 1kwh:
1) What would happen to the inverter on a sunny day when my load is almost zero and the battery is full?
2) Idea: set the Solaredge inverter to observe the zero export rule and connect Battery : Wattnode : Load. Would this work?
It's clear that the Solaredge inverter could dynamically manage it's output. I can't help but think that using the zero export settings could achieve the desired results.
Note, for the sake of simplifying the discussion and not be sidetracked by other challenges, such as safety etc. Let's assume that we are turning a grid-tie system into an off-grid system (*already physically disconnected from the grid*) in a major disaster event with an extended power outage scenario. Yes, I am aware of other options such as cheap battery inverter, ICE generators etc. The core of the question is how to leverage my PV system to get sustainable "basic" power to serve me and my neighbors' very most basic needs.
Originally, Solaredge intended to offer "Optional: Self-Sustaining Power - produce up to 1.5kW directly from PV during grid failure" but now this option is in doubt. goo.gl/WBG6hJ
This would have been the perfect backup solution for me. Serve basic needs - since it covers the worst case scenario with minimal up front costs.
Looking at AC coupled Battery solution - what *if* my battery system size is so small, say 1kwh:
1) What would happen to the inverter on a sunny day when my load is almost zero and the battery is full?
2) Idea: set the Solaredge inverter to observe the zero export rule and connect Battery : Wattnode : Load. Would this work?
It's clear that the Solaredge inverter could dynamically manage it's output. I can't help but think that using the zero export settings could achieve the desired results.
Note, for the sake of simplifying the discussion and not be sidetracked by other challenges, such as safety etc. Let's assume that we are turning a grid-tie system into an off-grid system (*already physically disconnected from the grid*) in a major disaster event with an extended power outage scenario. Yes, I am aware of other options such as cheap battery inverter, ICE generators etc. The core of the question is how to leverage my PV system to get sustainable "basic" power to serve me and my neighbors' very most basic needs.
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