Energy management systems and control of washing machine, dryer, and property

My question is: How do you control or switch on your washing machine, dryer, or dishwasher when you want to specifically use energy from photovoltaics? What control/energy management systems are available for this? What are the interfaces called with the usual device manufacturers? Do I necessarily need a battery? Such a storage is supposed to be economically not worthwhile... This is a continuation of this post: Siemens apparently offers "Home Connect".

Various dryers can be set using a rotary switch, and as soon as the machine receives power from the switched socket, it starts.

Does that mean there is a setting in the dryer's menu/program selection? I've never seen that before. What is meant by "switched socket"? What makes it switchable? WLAN? Via an app on the phone?

Addition to incoming mail: has uploaded a diagram on the topic of energy management here:

What are the names of the interfaces for the usual device manufacturers?

At BSH there is Home Connect. At Samsung it is called Smart Control, etc. But you can adapt any device. The simplest option is the switchable socket. That already existed in grandma's time with a mechanical timer in between. Nowadays, this can be controlled automatically and on demand. For example, your dishwasher cleans the dishes during the day when you are at work and only when the photovoltaic system has a surplus (provided it actually supplies power). Of course, normal operation is still possible and your devices will not be restricted.

Do I absolutely need a battery? Such a storage is supposedly not economically worthwhile...

No, you don’t necessarily need one. Especially without storage, you can prefer to use the electricity directly and power your devices with it.

Does that mean there is a setting in the menu/program selection of the dryer? I have never seen that.

Tassimat meant simple devices without much frills. You set them beforehand by switch as you need them, and as soon as the device gets power via the switchable socket, the program starts. The command is given to the socket, for example, by any energy management system or directly from the photovoltaic system or the resident or whatever.

What is meant by "switchable socket"? How is it switchable? WLAN? Via an app on the phone?

You can choose how it is controlled. Timers, apps, phones, displays, completely autonomous and automatic, by gesture, voice, or smoke signals. The possibilities nowadays are almost limitless.

Even coordinate-based control, i.e. based on your location, is no problem.

You just pick a suitable way. Preferably without any cloud or other nonsense.

What control / energy management systems exist for this? What are the names of the interfaces from the usual device manufacturers?

My control instrument is eyes and leg. Eyes for looking at the sun and legs to go to the device and start it. There are no common interfaces. The vast majority of devices have nothing integrated.

There is apparently Siemens' "Home Connect".

HomeConnect is offered by many providers. But they only offer remote control, they cannot detect whether the electricity comes from the photovoltaic system.

You set these beforehand with a switch as you need them, and as soon as the device receives power via the switchable socket, the program starts.

However, I know most devices so that if there is no power, they are simply off. And when power is turned on, the devices turn on but do not start anything; they are in basic mode and need to be operated. Actually, I do not know any household appliances that start pre-programmed when you plug them into the socket... Simply put: If the switchable socket does not supply power, it is as if the device’s power plug is pulled out. When power comes, the device turns on and you have to select and start a program. How exactly does that work then?

How exactly everything works would go beyond the scope here. Simply put, what you mean is the standby mode, which can be bypassed via software/hardware. For example, almost any modern TV can be converted into a hotel TV in no time so that it turns on without the remote control and gains additional specific functions. The same applies to household appliances, and sometimes something like Home Connect can even be a hindrance. Of course, it doesn’t work out-of-the-box and you need someone who knows what they’re doing. A layperson with their Wi-Fi socket won’t necessarily get very far. For energy management, you usually need a professional anyway, because you’re not allowed to tamper with electricity, etc.

It’s all doable nowadays... and yes, there are still devices, e.g. at the lower price range, which don’t really have standby mode but start as soon as they get power and a program was selected previously.