Berlin-based climate research institute Mercator Research Institute on Global Commons and Climate Change (MCC) has released a new study indicating that, in the last decade, the cost of solar power has dropped by 87 percent, and the cost of battery storage by 85 percent.
An off-grid setup with grid power option is still considered a grid tie in my area since it needs a way to prevent backfeeding to the grid. Which is totally doable in several ways, just one additional thing to be aware of.
And as a former solar installer, I also remember looking at signature solar and thinking their kits looked the best.
That doesn’t really make sense, since an off-grid inverter literally cannot backfeed. It’s essentially just a computer UPS on steroids. It accepts the grid as an input that it can pass through but it’s not possible for it to push energy back to the grid.
I mean yes if you decided to hook its output directly up to your Mains panel without separation you would be back feeding. But only for maybe a few minutes at most as you would also destroy your inverter because it has no mechanism to synchronize the output with the mains since it’s not designed to backfeed
It’s 120v, there’s nothing to synchronize? Not sure what you’re talking about here. Same power is coming from the inverter, battery, grid, generator…
This is standard practice. Inverter - > monitoring - > maybe a knife disconnect - > main panel.