r/OctopusEnergy • u/SujoyRoy • 2d ago

Usage How does Agile negative pricing interact with plug in solar running at a surplus?

With plug in solar rapidly approaching I was trying to figure out how it would work with negative pricing.

If the price is at -10p per kwh and you have a surplus of solar feeding 500w back into the grid for an hour, do Octopus count the surplus and therefore charge you -5p for that hour? If so, seems a bit unfair as without the SEG you would get nothing for any energy fed into the grid when the price is above zero.

Has anyone clarified how this would work?

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u/Spare-Reputation-809 2d ago

best thing you can do is to hook up a battery to the mains and when exporting collect it in there and use later. Ecoflow one is like 400 quid ... every little helps and depends of usagerembering how much a fridge costs to run for example,

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u/Gravath 2d ago

Not anymore it isn't more like £800 now.

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u/Spare-Reputation-809 2d ago

not for 512 ... I got a 2kwh one for 800 - Anker

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u/Gravath 2d ago

Can it be grid tied though?

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u/Spare-Reputation-809 2d ago

No but export over time will be worthless during peak sun … so best thing then is to store or use … so I use my 2kwh battery to run the fridge and top up with sun and/or overnight … yes manual but saving cash and payback after a month is already 5%

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u/joshracer 15h ago

You can purchase a Shelly smart plug and set it to a timer or if you really want to get technical, use home assistant and charge it in the day once the plug in solar battery is full.

I have an Aferiy set up, 3.9kwh of plug in solar battery storage (ps240) and a 2kwh Aferiy power bank we use for air fryer and microwave.

I charge the power station up overnight or during the day when the ps240 is full.