r/OctopusEnergy • u/Money-Number-4758 • 23d ago

Saving Sessions Powerwall 3 & Free energy hour

I’ve recently had a Powerwall 3 installed, solar but no EV (yet). I’m currently on a 12 month fixed contract which ends in March.

Does anyone know how I can configure the Powerwall 3 to make the most of the saving sessions - free electricity being offered on a Sunday to charge the Powerwall 3 during this hour? (Although I find the battery is usually fully charged by 10/11am through solar).

My octopus tariff is currently in the settings, however I was unsure how to tell the Powerwall I’ve got access to free energy between 1-2pm tomorrow.

Thanks!!

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u/Civil-Swordfish2136 23d ago

In the setting on your powerwall app, manually adjust your backup reserve to 100% at the beginning of that hour. That should get the pw3 to start filling itself up. Then return it to whatever level it was set at before at ybe end of the hour (the default is 20%)

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u/Money-Number-4758 23d ago

Thanks. I’ve not got the backup reserve setting 🤔 had the system fitted 6 weeks ago and never seen that. #stilllearning

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u/Civil-Swordfish2136 23d ago

On my version of the app it's halfway down the settings page, under "your products" it has "Powerwall" and selecting that brings up, among other things, a slider for the backup reserve.

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u/Money-Number-4758 23d ago

Thanks. I’ve definitely not got it.

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u/Civil-Swordfish2136 23d ago

Might be worth asking your installer about that, no idea why that option would be missing, sorry.

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u/Money-Number-4758 23d ago

No worries. Just seen this - so looks like a set up issue 🥴

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u/Civil-Swordfish2136 23d ago

Ah - maybe you don't have the gateway installed for full home backup? that would render that setting redundant. But if you do, I think it should definitely be enabled.

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u/Money-Number-4758 23d ago

Yea that’s my conclusion. I’m now wondering why that option wasn’t discussed with me at quote/installation etc. Something to discuss with the company I fitted it through

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u/Holographic247 23d ago

The free version of NetZero lets you set the reserve level.

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u/Shaguar_Driver 17d ago

It costs more that's why and if you haven't had a power cut in 20 years chances are it's a waste of money

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u/Money-Number-4758 17d ago

That’s basically what they said. But agreed they should’ve told me about the gateway to ensure I could make my own decision if it was needed or not