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standalone/ offgrid solar inverter without batteries? (self.energy)

submitted 1 year ago by cybermatrix to c/energy

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Would it not be nice to have an inverter (2kw) which is off the grid that can work by having a very small buffer (1 kwh) to power applications that can work intermittent. So when the sun goes away, the applications (such as a pump or fan) work for one hour more and then stops. Like a UPS.

I work for a company that uses small solar pumps for small holder farmers and these pumps do not have batteries. So when the sun is away, the pump simply stops working and continues to operate when the sun is back.

I would like something like that for my shed. My question is this, does anyone knows the correct terminology for such an inverter and or do you know a brand as an example that can do this?

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[–] BastingChemina 3 points 1 year ago (1 children)

I think the solar pump are DC current pump. My in laws have that for their pool too.

So rather than having a small inverter, why not trying to have a DC pump and DC fans ?

[–] cybermatrix 1 points 1 year ago

The solar pumps that we use have brushless solar pump which require a controller because they are not brushed. Then they also can be driven by an PWM to enable optimal power every hour of the day. You are right, we can be using simple dc brushed motors. The reason why i would like AC is that there are many application on offer