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sarahbell

Energy saving

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We're introducing new shelf-edge strips which uses racing car technology to make our shops more energy efficient. Rolling out from March, this will reduce energy consumption by up to 25% - saving the energy equivalent of making 1.6 billion cups of tea per year.

says Waitrose  & Partners on twitter

1. So is that 1/4 of the total energy they use saved, or is it 1/4 energy used to light shelves?
2. What happened to the old lighting? Has it been disposed of responsibly?

3. How much carbon and other pollutants were used to manufacture the new lights, ship them and then install then? Ditto uninstalling and disposing of old?

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19 minutes ago, sarahbell said:

We're introducing new shelf-edge strips which uses racing car technology to make our shops more energy efficient. Rolling out from March, this will reduce energy consumption by up to 25% - saving the energy equivalent of making 1.6 billion cups of tea per year.

says Waitrose  & Partners on twitter

1. So is that 1/4 of the total energy they use saved, or is it 1/4 energy used to light shelves?
2. What happened to the old lighting? Has it been disposed of responsibly?

3. How much carbon and other pollutants were used to manufacture the new lights, ship them and then install then? Ditto uninstalling and disposing of old?

It's being enforced I think. I went in b and q to get a replacement bulb and the only ones were leds. At 3" or 4 times the price of old. halogens. You can't really sell it as going green as you don't have a choice.

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59 minutes ago, Green Devil said:

It's being enforced I think. I went in b and q to get a replacement bulb and the only ones were leds. At 3" or 4 times the price of old. halogens. You can't really sell it as going green as you don't have a choice.

LED's are fine if they are decently designed/manufactured, high power ones do get hot and most failures are bad thermal design, if they are made well even paying 3/4x the price of tungsten is fine, they should last 10x as long and use a fraction of the energy, so generally a good thing. Also saves on maintenance.

One of the biggest energy wastes has to be running chiller units without suitable thermal design - small shops are the worst, in summer you have warm outside temps and cabinets running full pelt kicking out waste heat back into the same room that the chillers are struggling to chill against. A decent fan/vent even just into the open room would make a large saving on its own yet hardly ever see such a thing set up.

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