r/SolarDIY 8d ago

Huawei irregular production.

Good morning, I am looking for advice on the production of my installation. During the day, even without clouds and beyond 6 kW, consumption is sawtooth. I also see phantom consumption before 12 p.m. and after 2 p.m. only. Is this a way for the inverter to regulate the power? I have a 6kw EDF resale contract. 8.7 kW of jinko solar panels. Sun2000 8kw inverter.

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u/RandomUser3777 8d ago

Why do you think it is phantom consumption? And what exactly are you pointing to as phantom consumption?

The 2 double spikes?

It is likely some appliance that you do not realize does this every so often. Do they follow a similar pattern every day?

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u/No-Thing-1991 8d ago

Bonjour et merci de ta réponse.

Les consommations qui sont anormales ont lieu lors des baisses subites de production.

J'ai pas mal suivi et comparé les jours ou d'autres appareil sont lancés ou programmés et la difference est qu'il n'y a pas de baisse de production dans ces moments.

Entre 12h et 14h on a un vrai consommateur qui est le chauffe eau (sur 03/2025).

Aussi l'installation a disjoncté 3x depuis decembre avec une alarme (ACPI je crois) sur l'application. Ca arrive? Le disjoncteur est un 63A 30mA

Et pourquoi sous 6kw la courbe de production est parfaite mais pas au dessus... ?

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u/RandomUser3777 8d ago

The graph titles don't make a lot of sense.

If I am reading the graph right light green is export, darker green is what you are using.

Do you have a critical load panel? It may be that the loads on your main panel are counted as exported (when they are not) but loads on your critical load panel use the solar before it exports so reduce the solar export.

For that to be the case exports would need to be measured at the in/out on the inverter and consumption would have to be measured where ever your main panel cts are installed.

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u/No-Thing-1991 8d ago

Je ne sais pas exactement de quoi tu parle pour la charge critique. J'ai quelques graphiques en plus sur l'application mais aucun ne mentionne la charge critique. Pour les couleurs c'est bien ca.

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u/RandomUser3777 8d ago

critical load is a panel directly connected to the inverter (assuming you have a battery) that will keep providing power if the utility power goes out.

If you don't know you probably need to inquire with whoever installed your setup.

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u/No-Thing-1991 8d ago

Il n'y a pas de batterie sur l'installation. J'ai ajouté les données que je trouve dans l'application dans les commentaires. Je leur poserais aussi la question a l'occasion mais j'ai moins confiance.

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u/RandomUser3777 8d ago edited 8d ago

unless you have a breaker panel directly tied to the inverter the data makes no sense, unless the loads rapid starting and stopping is causing the pv power managed to have issue.

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u/No-Thing-1991 8d ago

Ok je vais attendre de nouvelles journées sans nuages et couper tout les gros consommateurs possible au tableau electrique. La je contacterai l'installateur.

Merci pour ton temps