Washing machine costs

BooJewels

I'm with you @Spoonie_Turtle - I did a very rough guestimate yesterday of my own old machine and came to something like 0.63kWh / 630Wh for a 40°C cycle - which is rather less than I was expecting and dead in-line with @busybee100 numbers above.  When I can eventually get a Tapo P110, I'll be interested to see find out how far I'm off.  If it is less than 22p for a load of washing - I can live with that - I spend way more than that getting myself clean.

[Deleted User]

As we are likely to see the introduction of power-limited tariffs (as per many other European countries), knowing the difference per kW and kWh is going to become increasingly important for consumers.

Suppliers, may, for example offer a tariff that restricts the consumer to a maximum of 5kW at peak times for a reduced tariff cost. Even if the washing machine only consumes 0.642kWh per cycle what will matter is the peak power required to heat the water. If this is 2.5kW, then putting a 3kW kettle or oven on at the same time might lead to remote supply disconnection. This is why our smart meters have a built in disconnection capability.

busybee100

Dolor said:

As we are likely to see the introduction of power-limited tariffs (as per many other European countries), knowing the difference per kW and kWh is going to become increasingly important for consumers.

Suppliers, may, for example offer a tariff that restricts the consumer to a maximum of 5kW at peak times for a reduced tariff cost. Even if the washing machine only consumes 0.642kWh per cycle what will matter is the peak power required to heat the water. If this is 2.5kW, then putting a 3kW kettle or oven on at the same time might lead to remote supply disconnection. This is why our smart meters have a built in disconnection capability.

Maybe but that is not what this thread was about.
Write a definition, put it in your signature and gradually we will all understand the terminology.

busybee100

Spoonie_Turtle said:

busybee100 said:

You need to educate me then.

I put the monitor between the socket and plug. It records highs, lows, current use, time, cost, volts and other stuff and how much it has used cumulatively.

The figure I have given is how many units were used for each cycle.

How should I have recorded it?

Wh.

I can believe your numbers, our reasonably old second-hand (maybe even third-hand) machine used just over 0.3kWh / 300Wh on a fast 30℃ cycle, and about 0.5kWh / 500Wh on a longer 30℃ cycle.  I was impressed, anyway.

Thank you. 

It also means the emphasis is on drying, half a load at 20⁰c is nothing if I can get it dried the same day.

The thing that shocked me was the DW, I thought it would be inline with the WM but it's 0.8kWh or 1.1kWh which is quite a lot when we only use 5/6 kWh per day (not hot water).

Sorry Dolor I hadn't seen Spoonie Turtles post when I replied to yours.

[Deleted User]

busybee100 said:

Dolor said:

As we are likely to see the introduction of power-limited tariffs (as per many other European countries), knowing the difference per kW and kWh is going to become increasingly important for consumers.

Suppliers, may, for example offer a tariff that restricts the consumer to a maximum of 5kW at peak times for a reduced tariff cost. Even if the washing machine only consumes 0.642kWh per cycle what will matter is the peak power required to heat the water. If this is 2.5kW, then putting a 3kW kettle or oven on at the same time might lead to remote supply disconnection. This is why our smart meters have a built in disconnection capability.

Maybe but that is not what this thread was about.
Write a definition, put it in your signature and gradually we will all understand the terminology.

So back to my post. I explained the method I used to come up with the figures. I've also checked the DW and FF, the results lead me to believe they are how much electric is used during each cycle.

How should that be recorded?

Quantity of energy used is shown in Wh or kWh. Your 630w should be shown as 630Wh or 0.63kWh. To calculate the cost of running your washing machine cycle, you multiply your unit price by 0.63.

Your original post designated your figures as if they were instant power W  - not usage Wh.

All the above sounds very pedantic - sorry.

BooJewels

busybee100 said:

Thank you. 

It also means the emphasis is on drying, half a load at 20⁰c is nothing if I can get it dried the same day.

The thing that shocked me was the DW, I thought it would be inline with the WM but it's 0.8kWh or 1.1kWh which is quite a lot when we only use 5/6 kWh per day (not hot water).

Sorry Dolor I hadn't seen Spoonie Turtles post when I replied to yours.

This cropped up in another thread (specifically about reducing tumble drier time) - I have always spun my washing at least once extra on the spin cycle, preferably twice, as I dry inside using a pulley airer in my utility room and this seems to take quite a bit of extra moisture out of the washing - tangibly so from end of cycle to after first additional spin.  My additional spin cycles were just under 10 minutes from button click to door lock opening and worked out at something like 2p extra in electricity.  So might be worth trying, if you don't already, to improve the speed of things drying.  I always figure that ten minutes of spinning will get more moisture out that 10 minutes in the air.

Next time I do a load of something like towels, I was going to weigh one after each spin, see if it was evident how much more moisture it gets out - just out of curiosity.

busybee100

[Deleted User] said:

busybee100 said:

[Deleted User] said:

As we are likely to see the introduction of power-limited tariffs (as per many other European countries), knowing the difference per kW and kWh is going to become increasingly important for consumers.

Suppliers, may, for example offer a tariff that restricts the consumer to a maximum of 5kW at peak times for a reduced tariff cost. Even if the washing machine only consumes 0.642kWh per cycle what will matter is the peak power required to heat the water. If this is 2.5kW, then putting a 3kW kettle or oven on at the same time might lead to remote supply disconnection. This is why our smart meters have a built in disconnection capability.

Maybe but that is not what this thread was about.
Write a definition, put it in your signature and gradually we will all understand the terminology.

So back to my post. I explained the method I used to come up with the figures. I've also checked the DW and FF, the results lead me to believe they are how much electric is used during each cycle.

How should that be recorded?

Quantity of energy used is shown in Wh or kWh. Your 630w should be shown as 630Wh or 0.63kWh. To calculate the cost of running your washing machine cycle, you multiply your unit price by 0.63.

Your original post designated your figures as if they were instant power W  - not usage Wh.

All the above sounds very pedantic - sorry.

Not at all, I agree it's something we should all know, along with how to read a fuel bill, how many units we use and price per unit. 

Spoonie_Turtle

[Deleted User] said:

busybee100 said:

[Deleted User] said:

As we are likely to see the introduction of power-limited tariffs (as per many other European countries), knowing the difference per kW and kWh is going to become increasingly important for consumers.

Suppliers, may, for example offer a tariff that restricts the consumer to a maximum of 5kW at peak times for a reduced tariff cost. Even if the washing machine only consumes 0.642kWh per cycle what will matter is the peak power required to heat the water. If this is 2.5kW, then putting a 3kW kettle or oven on at the same time might lead to remote supply disconnection. This is why our smart meters have a built in disconnection capability.

Maybe but that is not what this thread was about.
Write a definition, put it in your signature and gradually we will all understand the terminology.

So back to my post. I explained the method I used to come up with the figures. I've also checked the DW and FF, the results lead me to believe they are how much electric is used during each cycle.

How should that be recorded?

Quantity of energy used is shown in Wh or kWh. Your 630w should be shown as 630Wh or 0.63kWh. To calculate the cost of running your washing machine cycle, you multiply your unit price by 0.63.

Your original post designated your figures as if they were instant power W  - not usage Wh.

All the above sounds very pedantic - sorry.

Not really, it's a little bit like asking someone 'how far did you drive?' and they answer 'I went at 60(mph)' rather than '60 miles'.

busybee100 said:

[Deleted User] said:

busybee100 said:

[Deleted User] said:

As we are likely to see the introduction of power-limited tariffs (as per many other European countries), knowing the difference per kW and kWh is going to become increasingly important for consumers.

Suppliers, may, for example offer a tariff that restricts the consumer to a maximum of 5kW at peak times for a reduced tariff cost. Even if the washing machine only consumes 0.642kWh per cycle what will matter is the peak power required to heat the water. If this is 2.5kW, then putting a 3kW kettle or oven on at the same time might lead to remote supply disconnection. This is why our smart meters have a built in disconnection capability.

Maybe but that is not what this thread was about.
Write a definition, put it in your signature and gradually we will all understand the terminology.

So back to my post. I explained the method I used to come up with the figures. I've also checked the DW and FF, the results lead me to believe they are how much electric is used during each cycle.

How should that be recorded?

Quantity of energy used is shown in Wh or kWh. Your 630w should be shown as 630Wh or 0.63kWh. To calculate the cost of running your washing machine cycle, you multiply your unit price by 0.63.

Your original post designated your figures as if they were instant power W  - not usage Wh.

All the above sounds very pedantic - sorry.

Not at all, I agree it's something we should all know, along with how to read a fuel bill, how many units we use and price per unit. 

I agree too.  I never knew any of this until a few months ago!

Slinky

BooJewels said:

  When I can eventually get a Tapo P110, I'll be interested to see find out how far I'm off. 

Having waited a week for JD Williams not to deliver the one I ordered from them, today I managed to find them in stock here, should be delivered tomorrow.

https://www.very.co.uk/tp-link-tapo-p110-smart-socket-with-energy-monitoring/1600670759.prd?sku=sku24300805&cm_mmc=google-_-PLA+-+Generic-_-Ad+group-_-PRODUCT_GROUP_p72452320426_&utm_campaign=Generic_Home+-+Homewares+-+SSC&utm_medium=cpc&utm_source=google&utm_term=PRODUCT_GROUP&campaigntype=shopping&gclid=Cj0KCQjwhY-aBhCUARIsALNIC072dm0Kt1_QRsf5AsEAiI4-q9iOfKzwc9RQnNeyP5iBKTmYanjHIlUaAo18EALw_wcB&gclsrc=aw.ds

BooJewels

Thanks @Slinky - I saw that Very had them, but don't have an account - maybe I need to open one.