Use case · Sustainability

More sustainable, without losing operations, quality or margin.

A measure is kept only if it cuts CO₂ per good part and breaks none of your limits. Each limit is judged at the worse edge, not on average.

Cutting CO₂ by making less or shipping late just moves the cost. Each measure must cut CO₂ per good part and keep your limits.A measure that cuts emissions by making less, or by shipping late, is not a measure. It is a cost moved somewhere else. So every measure faces two tests: does it cut CO₂ per good part, and does it keep everything you will not give up?

An illustration: five invented measures, four limits, and the best that breaks none

Test one · per good part

Per good part, not in total

Ranked by the day's total cost, one packer wins only because the line makes fewer parts. Ranked per good part, it comes last.Nine settings of the same line (one to three packers, a press drawing more or less power), priced with carbon included and ranked twice: as totals over the day, and per good part. The order turns over. One packer makes the cheapest day only because the line makes fewer parts an hour: less of everything happens, and a goal over totals calls that an improvement. Per good part, the settings with one packer come last. So every priced goal counts per good part; the one that does not says so in its name.

Ranked in total, making less wins; ranked per good part, it comes last

Test two · your limits

Your limits, judged at the worse edge

Each limit is judged at the worse edge of a measure's interval. A greener press, cheaper on average but possibly dearer than today, is set aside.Then write down what you will not give up (here, cost and operations no worse than today) and make every measure prove it keeps it: each limit is judged at the unfavourable end of the measure's interval, not on its average. A greener press on its own is cheaper on average but could be dearer than today, so it is set aside. The same press with a second packer is greener still and clears both limits even at the worse edge. Limits you write yourself replace the goal's own and are judged the same way.

An illustration: one measure fails at the worse edge, one keeps both limits

Then the price of each point

Cost per point puts small and large measures on equal terms. The best value here: quicker changeovers at the bottleneck, not an environmental measure.For the measures that pass both tests, cost per point divides what each costs by the points it gains, so a small change and a large investment stand on the same terms. On this line the best value was not an environmental measure at all: quicker changeovers at the bottleneck. While a machine is changed over it draws power and makes nothing; less time lost there lets the same day ship more good parts, each carrying less carbon. The obviously green measures, heat recovery and switching idle machines off, bought least.

Impact per euro and the weight sweep, on Sustainability

An illustration: each measure's cost shared over its points, and why changeovers won

Use cases

A new line, before it is built

Place it, check it, run it, and find the smallest fleet that still reaches the target.

An investment for an existing line

Four options, six sections, and the point where the lead changes hands.

An energy price shock

What it does to the cost of a good part, and what a roof and moved work win back.

Daily planning, done by six

Forecast, plan of the day and both reports, before the early shift starts.

Where are your limits?

Tell us what you will not give up for a lower footprint. We will show you which of your measures would pass that test.

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