ᐅ Energy management systems and control of washing machines, dryers, and the 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 your photovoltaic system? What control or energy management systems are available for this? What interfaces do the common appliance manufacturers use?
Is a battery absolutely necessary? It is said that such storage might not be economically worthwhile...

This is a continuation of this post: https://www.hausbau-forum.de/threads/wenn-nochmal-bauen-was-anders-machen.42145/post-553913

Apparently, Siemens offers something called "Home Connect".

Tassimat schrieb:

You can set various dryers using a rotary switch, and as soon as the machine receives power from the switched outlet, it starts.

Does that mean there is a setting in the dryer’s menu or program selection? I have never seen that before. What exactly is meant by "switched outlet"? What controls the switching? Wi-Fi? An app on the phone?

Addendum to the original post: @Mycraft has uploaded a diagram about energy management here: https://www.hausbau-forum.de/threads/wenn-nochmal-bauen-was-anders-machen.42145/post-553850

HoisleBauer22 schrieb:

What are the interface names used by common appliance manufacturers?

BSH offers Home Connect. Samsung calls it Smart Control, and so on. But you can customize any appliance. The simplest option is a controllable power outlet. That existed even back in grandma’s days with mechanical timers in between. Nowadays, you can control it automatically and based on demand. For example, your dishwasher can run during the day while you’re at work, using surplus electricity from your photovoltaic system (if it’s producing power at all). Of course, the usual manual operation remains possible and your appliances won’t override your control.

HoisleBauer22 schrieb:

Do I absolutely need a battery? It’s said that a storage system is not economically worthwhile…

No, you don’t necessarily need one. Particularly without a battery, you can directly use the electricity yourself to power your appliances.

HoisleBauer22 schrieb:

So there is a setting in the dryer’s menu/program selection? I’ve never seen that.

Tassimat meant simple appliances without many bells and whistles. You set them beforehand with a switch according to your needs, and as soon as the appliance receives power via the controllable outlet, the program starts. The command comes from, for example, an energy management system, directly from the photovoltaic system, the user, or other sources.

HoisleBauer22 schrieb:

What is meant by “controllable power outlet”? Controllable how? Wi-Fi? App on the phone?

You can choose how it’s controlled. Timers, apps, phone, displays, fully autonomous and automatic operation, gesture, voice, or even smoke signals. The possibilities today are almost limitless.

Location-based control, based on your position, is no problem either.

You simply pick a suitable method, preferably without relying on any cloud or other unnecessary services.

HoisleBauer22 schrieb:

What control/energy management systems are available for this? What are the interfaces called by the common device manufacturers?

My control instruments are my eyes and legs. Eyes to check the sun, and legs to walk to the device and start it.
There are no common interfaces. Most devices have nothing integrated.

HoisleBauer22 schrieb:

Siemens apparently has "Home Connect."

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

Mycraft schrieb:

You first set the desired program using a switch, and as soon as the device receives power via the switched outlet, the program starts.

However, I know most devices to simply be off when there is no power. When power is turned on, the devices start, but do not run any program—they are in basic mode and need to be operated manually. In fact, I do not know any household appliances that automatically start a preprogrammed cycle just by being plugged in.
Simply put: If the switched outlet does not supply power, it’s as if the device’s plug is pulled out. When power comes on, the device turns on, but a program must be selected and started manually.
How exactly does that work?

@Benutzer200

Explaining exactly how everything works would go beyond the scope here. Simply put, what you’re referring to is standby mode, which can be bypassed using software or hardware. For example, almost any modern TV can be quickly converted into a hotel TV, so it turns on without the remote control and gains other specific functions. The same applies to household appliances, and sometimes features like Home Connect can even be a hindrance. Of course, it doesn’t work out-of-the-box and you need someone knowledgeable. A layperson with a Wi-Fi smart plug likely won’t get very far. For energy management, you generally need a professional because working with electrical systems requires proper expertise and authorization.

All of this is possible nowadays... and yes, there are still devices, often found at the lower price range, that don’t really have a standby mode but instead start as soon as power is supplied, provided a program was selected beforehand.