It's years I cry that the sole reasonable usage of p.v. is self consumption and so the sole reasonable dimension for a plant is "how much can I self-consume mys

It's years I cry that the sole reasonable usage of p.v. is self consumption and so the sole reasonable dimension for a plant is "how much can I self-consume myself?". The sad state of things is that we have little designed for that at home. Personally I have a Victron EVC 300400300 one of the very few car charger claim to be integrated with p.v. production and yes, it is. Bugged and limited as hell: - many times does not start charging when p.v. power is available, no "force start" button or "try start" configuration option available - it stop charging only after around 30' without enough p.v. power HARDCODED - poor integration with it's own Victron GX server, not taking into account total home consumption in a hybrid system but only the one protected by the local battery if any, of course with a smart-meter system And it's one of the best available. Thermodynamic (heat pump) water heaters? Well one of the most reputed brands here in EU, Daikin, offer just two dry contacts to pilot the appliance, designed to follow grid tariffs, not p.v. All the rest essentially do not take p.v. into account at all. This combined to the absurd prices p.v. installer companies ask their customers (and in some state self-made is illegal) put a strong brake in p.v. economics.