Is there a device that will tell you what appliances uses electricity in your house?

You can either get current clamps you can put in your consumer unit to measure current on each circuit, or you can get power measurement plugs that go between your socket and an appliance.

It depends what you want to get from the data.

Personally I would get the plugs and leave them on each appliance for a day, then add up your totals to see what's drawing the most power

I can set costs for night rate and day rate and it will calculate the costs.

Whichever smartplug you get, make sure it has energy monitoring and costs.

The ones I have are the P110.

€40 for a 4 pack at the moment.

As the OP said, to see which appliances use the most electricity. You can also add the price per kWh and see how much each appliance (or whatever you have plugged into the smart plug) has cost you each month. To have the ability to turn a light on from anywhere in the world, once you have internet? Just because you see it as pointless, doesn't mean others don't

The points are:

1. Getting visibility of which devices are switched on when
2. How much energy each is consuming, at different times of the day and under what conditions (e.g. 30,60,90 degree wash)
3. Turn devices on and off when you want
4. Schedule devices to turn on at certain times (e.g. Set the washing machine or dryer settings, switch it on while the smart plug is off and set a schedule to turn on during night rate). Thereby halving your washing bill.
5. Security - program lamps to switch on and off while away.
6. Cost reduction

Here's an example of cost reduction

In the previous screenshot I can see that someone switched on the washing machine at 12pm (how much energy it consumed) then again around 6pm (probably drying cycle).

This is totally inefficient, switching on in the middle of the day and at peak usage hours.

Although I do know why this was done this specific time.

Have a look above. It may help with your insane electric bill.

Smart meters in Ireland are not smart at all. They don't provide any information about which devices are consuming power and how much, they show the total consumed power of the house.

The information isn't available in realtime either, typically the next day. By which time one has to take a guess at what was turned on and when. Even worse when looking back across the month.

Curiosity dude, its why we are where we are as a species.

Go back up the thread and read my responses. They are clear enough.

Otherwise you are just trolling.

In April you were asking about an insane €2K electric bill in shared student accommodation. That may have been a glitch or billing problem.

The reason is to avoid such scenarios if they are caused by certain appliances, certain usage patterns or a general "I don't give a feck" attitude .

I'm guessing that until relatively recently you were living with the parents and didn't have to worry about the bills. We're heading into winter now, by October heating systems will be switched on on a regular basis including things like room heaters.

Wait until you see the costs shoot up from October to April and you will be wondering WTF is happening as you will be haemorrhaging money. Especially if you are on a two or three month billing cycle and bill shock hits you. It's a common occurrence every year.

Also, in winter, things like longer and warmer showers or hot baths have an effect.

People have moved to things like airfryers, do you know how efficient your airfryer is, how much energy it consumes or even your gaming rig, monitors, TV etc (even when they are "off"). Simply pressing an off button on a remote does not switch off the appliance totally.

This information, however, provides a greater degree of observability and allows one to perhaps make changes that will reduce costs, reduce usage when the grid is commonly known to be under stress, allow the grid to make use of less fossil fuels and make more use of renewable and sustainable resources.

A simple example is that i was sitting in a cafe in London one morning before a meeting and realised that the heating system was switched on in Ireland with nobody in the house. I turned it off by a single command and changed the schedule.

When we go to bed, any of us can say "…. turn off the entertainment system". This powers off the TV, AV receiver, speakers, media box, games console and any USB powered devices plugged into that smart power strip.

What is the constant power draw? Have you gone through the consumer unit and eliminated things by turning off circuits? They can't say what device you are using it's just false advertising. My immersion uses about 2.5kW so does my airfryer and my tumble dryer and top oven as an example, how can they tell what I turned on for 45 minutes? They can't. They just know I turned something on if even that.

Thanks! I was struggling to remember the brand name.

OK.

Perhaps different generations.

I was off by a few years 2024-31 years =1993

Not 1989,but not too far off.

Most of the people asking questions here are not sparks. They don't have the requisite knowledge and/or they want and expect something easy to access and use and provide observability, not mess around with calculating stuff or guesswork.

If they can see what's going on by consulting an app on their phone, then great.

I'm not here to argue (I'm trying not to) . The OP asked a question and i replied to him providing real life examples. If it helps him, then great.

This information is also here for posterity for anyone else to consult should they have a similar question in the future. I let them make their own decisions based on the information that or the non-information provided.

I've just off the back of my head counted close to or over 30 items in a two bed apartment with just two people which draw power, including all the lights as just one circuit. Trying to get to the bottom of that isn't easy (I know, I know, turn everything off and turn everything on and watch what happens or use a portable meter etc)

I've spent an inordinate amount of time on these replies but I don't mind as I am stuck in bed with Covid (yes, it's still out there).

As a spark, you could offer a service to connect a Shelly or similar unit to a customer's fuse box (maybe connect or show them how to connect it to their WiFi) plus provide a Home Assistant (HA) box.

There are labour and hardware sales in the above.

In terms of configuring home assistant, there is a company I consulted with who will help the customer configure HA remotely including the fancy dashboards etc. They will do the initial consult with the customer, provide you with a price and you include a markup.

People are bought into the idea of smart homes and if it's not smart already then they want some element of control and visibility. To what degree is up to them.