question

pau1phi11ips avatar image
pau1phi11ips asked

Setting negative grid setpoint limited to 80W feed in

Hi, I have a Multiplus II 3000 24V with a 7kWh LiFePO4 battery in a campervan that's connected to my houses mains supply.

I have ESS installed and using the scheduled charging setting on the Cerbo as I have a very low electricity rate in the night. This works great!

I've tried setting the Grid Setpoint to -250W to offset the base load of the house during the day when electricity costs are high but it seems the most I can feed back in is around 80W. It doesn't matter how low the Grid Setpoint value is set, it never feeds in more power.

Am I missing something here?

  • Multi Firmware version: 481
  • Venus OS version: 273.1
ESSess grid setpoint not reached
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pau1phi11ips avatar image
pau1phi11ips answered ·

Hmm, just updated Venus to 280.16 and it worked. I could set 300W and it put 300W back, 400W and it put 400W.

Then it switched to Passthru and it was at 0W and I couldn't change it at all.
Going into the Settings > Multiplus-II > Advanced > System Reset fixed it.

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netrange avatar image
netrange answered ·

Some Infos about your Multi !!! 12,24 or 48 Volt ...

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pau1phi11ips avatar image pau1phi11ips commented ·
Added to OP, it's 24V
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netrange avatar image netrange pau1phi11ips commented ·
Settings in Ess ... maybe an activated Feed back to Grid Limit ...
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pau1phi11ips avatar image pau1phi11ips netrange commented ·


No feed in limit set. It's purely coming from battery power at the moment that's been charged on the cheap rate.

1631280376272.png

There is a MPPT connected to the Cerbo but I shall be installing solar later and, hopefully feeding that back in too.

PS. Why would the voltage of the Multi change anything?

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1631280376272.png (19.9 KiB)

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