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  # 1720896 15-Feb-2017 22:18
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sen8or:

 

jpoc:

 

Rikkitic:

 

Never use them. Why should I do someone else's job for free?

 

 

 

 

 

 

Because if I am buying, say, twenty items including ten cans of beer from Pak'nSave in Wairau Road, I can go to the self scan checkout and scan my items and I will always be charged for ten cans plus the other stuff. Always.

 

If I go to the normal checkout the bill will include a charge for either 10 or 11 cans. Never 9. Never ever 9. This is consistent and it seems to me that I must be very unlucky or it is deliberate.

 

Also, if I shop on a day with a big petrol discount, about half of the time, the checkout operator does not give me the petrol voucher and I must ask for it.

 

This suggests to me that there is dishonesty there. The self scan checkouts do at least seem to be honest.

 

It is not just Pak'nSave they are all at it. At least they do not have a loyalty card. If I shop in Countdown or New World, I note that, if I do not swipe a loyalty card, the checkout operator will swipe her mate's card. They even do that if I specifically ask them not to. I do not want to be part of their fraud on their employer so, at that point I just walk out leaving them to return the goods to the shelves and explain to the boss what is going on.

 

 

 

 

 

 

 

 

 

 

I find Pak n Save (Hornby) pricing far more prone to errors than quantities. I would estimate that around 1/3 the time that my wife shops there, an item is either scanned wrong (E.G charged for apples when they were onions or weighing to products at once) or the shelf price (on special) or special price (stickers on the packaging reflecting a discount) are not charged correctly resulting in an overcgharge. She is vigilant with the grocery docket and continuously gets the amount refunded, but it happens far too frequently for it to be "operator error".

 

 

 

Good profit in overcharging the masses if only a minority pick up on it.....

 

 

Another oddity of our local P&S is that, unlike almost all supermarkets, they place the prices for the items ABOVE them, not below them.

 

 

 

Habit makes you look at the price in front of the item on the shelf front which often shows a cheap price - because it refers to the item below the one you are looking at. Been caught by that a few times.






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  # 1720940 16-Feb-2017 00:08
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richms:

Jaxson:


 


Compact flourescents wink are already pretty energy efficient, and if you don't have much money, it's sensible to migrate your main kitchen type lights over first.



Yeah but they are a terrible light distribution and warmup times and all sorts of other reasons they suck and should be replaced.



They also produce uv light which can discolour things in the house. That is why the white plastic fitting goes yellow. With leds coming down in price I would like to see CFLs phased out,, especially as they have mercury in them. There is now no need for them imo.

 
 
 
 


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  # 1721522 16-Feb-2017 20:06
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Bung:
jpoc: At least they do not have a loyalty card. If I shop in Countdown or New World, I note that, if I do not swipe a loyalty card, the checkout operator will swipe her mate's card. They even do that if I specifically ask them not to. I do not want to be part of their fraud on their employer so, at that point I just walk out leaving them to return the goods to the shelves and explain to the boss what is going on.


In a parallel universe to yours if no card is scanned you don't get cardholder discounts. To avoid grumpy customers who didn't realize that some stores use a store card to give you the discount price.

 

Yes. I have seen that in one New World (Birkenhead) but I have been told that it is "my mum's" or "my sister's" card more frequently.


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  # 1721607 16-Feb-2017 22:30
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Jaxson:

 

Remember you can only save power during periods the device is on.

 

 

 

So if an LED light is $10, and uses half the power of a budget one at $2, and they're only on for 1/2 hour a day in a toilet, then it's going to take approximately 1.2 billion years to pay itself off, and you'll never notice the reduction in your monthly power bill.

 

 

 

Compact flourescents wink are already pretty energy efficient, and if you don't have much money, it's sensible to migrate your main kitchen type lights over first.

 

 

 

 

I get the point you are trying to make.

I was specifying a motor for a dam spillway gate system in Aussie. That application must see less than 5 hours run time a year. Due to aussie MEPS (minimum efficiency legislation in aussie) I was forced to design in a more expensive motor, and deal with the less desirable torque characteristics that went along with it. (Efficient motors have higher stall torques, than less efficient ones, unfortunately this meant we had to rebuild a lot of the system so it could handle the load if the dam gate jammed and stalled the motor.) Lot's of energy (metal production, welding etc), (and many thousands of dolar's) wasted in rebuilding the system to save a couple of bucks in electricity over the system life.


However I really dislike mis-information, so I will run the numbers on your LED bathroom light situation.

 



For the LED light, the cheapest at countdown is a 9.5W philips, with output of 806lm.

About equivalent to a 60w $1.20 incandescent light. (can't get a CFL for under $6)

 

A half hour a day is 182.5hr per year run time.

 

Difference in energy consumption is 40.5W, this works out to 7.39 kWh of energy savings per year.

At a typical power price of 25c/kWh, this is worth $1.84 per year.

Lets assume the LED will last 3 times as long as the incandescent. Therefore, the spend on LED is $11, and on incandescent $3.60 (a $7.4 saving)

You can pay this back in energy savings in just 4 years. Very few other investments will give you a 25% yield, this is very good.


 

You are correct regarding the fluro lights. They not as good as LED's, but close enough that it is hard to get a quick financial payback. Of course LED lights typically have better light quality, less UV, turn on instantly, and are mercury free which means I want to move across anyway.

I want to swap out the entire downlight fixtures that makes the process a bit more expensive though ($30 - $40 per fixture), but dramatically improves the thermal performance of the house. (old downlights use an air path to the roof space for cooling, and hence allow drafts to form.


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  # 1721670 17-Feb-2017 08:54
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I was coming at this more, especially with the title of Cost savings measure that hasn't worked?, from those who swapped out CFLs for LEDs because of the advertising.

 

On average an LED lamp is roughly 10W less than a CFL, so if you've already committed/purchased CFLs, then that's a full cost to replace with an LED, for roughly $0.50c savings a year (half hour use as above) over CFLs. 

 

 

 

Incandescent is a no brainer to replace, and if starting from scratch then LED is definitely the way to go now.

 

And, as others have mentioned, there are additional benefits to removing the CFLs also. 

 

For the record, my house is now fully LED, except for garage lighting and a front door light we only turn on if anticipating someone coming.

 

 


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