Are they mains powered or battery operated?

Battery operated, they'll last about 10 years. I asked that when mine were installed in the old apartment. Same now for the smoke alarm, also battery operated, also lasting about 10 years.

What is it with you an needing to quote every post completely? You know how annoying that is to try to scroll through on a mobile device? Heck, even on a PC. Use the Reply button if you're posting immediately in reply to the post above yours. Simple bit of netiquette.

And besides, I wasn't talking to you. I was answering Sirius. Why do you always need to answer everyone? Are you the "moderator" of this forum?

Remote monitor for my, "smart meter" is mains powered and thinks I don't get up till 7 and go to bed at 10 as it needs waking up to look at it between 22:00 and 07:00hrs. I need to look for the research but it suggests that as a result of them, people do use enough less energy that they effectively have a negative carbon footprint.

Thanks. Going back several years power cut out on several occasions. Thinking a circuit breaker cut in, checked only to find out that was I out of power.
Had to top up meter. Instead of costing £35pm, it was now £40pm (at that time).
Looked into saving energy & came across a great tip, been using it ever since.
Instead of using "dumb" 6 socket extension leads, now use 6 switched socket ones.
Took a bit of time getting used to switching individual sockets off overnight, but now its normal.
Even the Combo microwave is only switched on when needed.
Used to do 3 laundry washes per week. Now down to 1, 2 when necessary like recently due to the hot weather.
If viewing online, have main light off,
Difficult to find how to reduce usage even further.

I always delete excessive quoting

No you don't. In none of your posts on this page of this thread have you deleted a single word or letter. Deleting excessive quoting means you answer only to that part of the message, like I do.

But some context is necessary when there are a few conversations going on at once, if I hadn't quoted you it would look like I was replying to Dave as that's the post above this one.

What do you think "in response to Message 108767" is for?

Or use a computer, a mobile device is not really suitable for a forum.

So you are the moderator then, deciding for everyone else how they should approach these forums and what to read them on?

If you live with family, fit PIR's for lights in hallway, stair and any space where people walk through. Also save's your voice and throat by not having to shout "Switch that light off".
[edit] You can get three position light switches so that they are PIR/Off/On. [/edit]

Get a boiling water dispenser instead of a kettle, so that only the water needed is boiled or heated to the correct temp for coffee. My eldest used to insist on boiling at least half a kettle full (~1 liter) just for a single mug, and he drinks a lot of tea and coffee.

I also fitted an electric instant warm water heater in the downstairs toilet and disconnected the hot water supply. I was calculated that at least 1.5 liters of hot water was left in the pipe every time it was used, which usually went cold before the next use. (And if someone suggests insulating the pipe, I suggest they plan on three days of swearing and cursing when they come here to fit it, at their expense. Not to mention all the knuckle rash.)

If you live with family, fit PIR's for lights in hallway, stair and any space where people walk through.

Funny if you have cats or other roaming animals...

But having said that, I use a cat light in the hallway. Found it among stuff I was giving away after my last animal died, it still had batteries fitted and was still working. Has a Day/Off/Night setting, not sure the difference between Day and Night as both will have it go on when I walk into its view. I set it to the side across from the door to the toilet, so at night when I have to go pee, I don't have to turn on all these lights everywhere.

My bed lights btw are all battery powered as well. I do have one electric light, but the bulb in it is 0.5 watts if I am not mistaken.

Get a boiling water dispenser instead of a kettle, so that only the water needed is boiled or heated to the correct temp for coffee.

An electric kettle isn't an option? You can fill it with as much water you need for your cuppa as well. Mine (from the Aldi) even has options of temperature: 40C, 60C, 80C, 100C.

(And if someone suggests insulating the pipe, I suggest they plan on three days of swearing and cursing when they come here to fit it, at their expense. Not to mention all the knuckle rash.)

At least your pipes can be approached. If you want to insulate mine, you have to start by drilling through the concrete of the floors and walls to get to them, then fill it all back in again and put my floor boards back. 😝

That pipe goes through 6 walls and between the ground floor ceiling and the floor above, and mainly goes through the beams. Oh, and they are imperial sizes not metric, house is nearly 180 years old.

If you live with family, fit PIR's for lights in hallway, stair and any space where people walk through.

They had them in bathrooms at NHS unit where I used to work. On one occasion after pulling a 24 hour shift (don't ask) I returned home and couldn't understand why the light wasn't coming on in the bathroom as I stood waving my hand at it.

The worst thing is one set to a very short time and it goes off while you're in the bathroom.

There's worse. If the PIR covers the general entrance and washroom area of the facility, but doesn't cover the W.C. cubicle itself...

You can be sitting in pitch darkness, with your trousers around your ankles, but without anything to wave at to restore the light. Remote car-parks at the beginning or end of a country walk are particularly prone to that (and you tend to be in there for longer if you have to manage rucksacks and cagoules, as well as your normal clothing).

And cagoules are for girls!

Sexist

Grumble.
Late last year, asked a Civil Servant if I would reed to register for ETIAS.
After some considerable to & fro'ing, got told yes, I need 1 due to Brexit, then she hung up.
E-mailed my MP - Yes, I need 1.
Last Monday, asked similar question but with a twist.
Got the same answers back with a twist - It's only £5. :-(

Glory.
Checked again, this time with the EU.
I don't need it. :-)
I must admit, the 2nd time of asking the question (the twist) had them stumped.
I'm a UK resident BUT an Irish Citizen. :-)

You gotta love bureaucrats.

I'm a UK resident BUT an Irish Citizen. :-)

You gotta love bureaucrats.

My German uncle, married to my mum's sister, paid however many Euros it was to get Irish citizenship before they moved back from there to be closer to their grandchildren to ensure his residency in UK.