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mletenay / home-assistant-goodwe-inverter

Experimental version of Home Assistant integration for Goodwe solar inverters
https://discord.gg/TaXyWXT
MIT License
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House Consumption is wrong on low load #191

Closed smileyman-1 closed 11 months ago

smileyman-1 commented 1 year ago

If consumption is low and there is no pv-input (at night), the House Consumption value is incorrect.

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At night, a generation of 15 watts is detected in this way.

On-grid Export Power shows the same wrong value. (In PV-Master the value is correct.) On-grid Power and Plant Power, on the other hand, usually - but not always - shows at this time the correct value. (But this values are always positiv and do not switch to minus for importing)

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When the load is higher House Consumption shows the correct values.

image image

Inverter: GW3068-EM

Paja-git commented 1 year ago

The house consumption is a calculated value. PV1Power+PV2Power+BaterryPower-ActivePower. ModBus registers are read sequentially, the inverter's probes have some precision also. So, small calc errors can happen.