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EcoFlow’s $200 PowerStream is so clever, you might buy a $4,000 solar generator (www.theverge.com)

submitted 5 months ago by Brkdncr@lemmy.world to c/technology@lemmy.world

20 comments fedilink hide all child comments

Title reads like at ad, but this is a new way to reach energy independence. I actually have a small EcoFlow device and it’s pretty good for the price.

I hope this tech can be made available in the US soon.

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[–] Randelung@lemmy.world 0 points 5 months ago (3 children)

Also, emergency service hazard. The PV won't turn off if firefighters take out the mains, which makes a house potentially inaccessible during an emergency.

[–] Sleepkever@lemm.ee 0 points 5 months ago (2 children)

Surprisingly, no. Most inverters in the EU must come with island protection. Meaning that if there is no AC from the grid it immediatly switches off the inverter or the battery, there is no stand alone operation.

There are some systems that allow it but they are rare here and require the mains side to be fed trough the inverter itsself ensuring it's never back feeding into the grid when there is no power with the same island protection, or less commonly there is a transfer switch of some kind also eliminating the issue. And either should obviously have a main kill switch on the breaker board for emergencies that also switches off the in home power with 1 action.

But most importantly, either of those options is not plug and play and will require an electrician that hopefully does know what he's doing.

[–] Randelung@lemmy.world 0 points 5 months ago (1 children)

Does the island protection with if you have two inverters running independently? (legally or not)

[–] luckystarr@feddit.de 0 points 5 months ago

Yes, because the frequency of the grid is also a trigger for shutting off the inverter. Inverters generate a frequency which indicates a "non healthy grid" that trigger the shutoff of connected inverters.