58
4 Sefficiency (Sustainable Efficiency)
• cSE and iSE go toward each other, if WR1 or R1 goes toward zero. In general,
iSE and cSE go toward each other as they get closer to WC1 * C1, which at the
limit, we have iSE = cSE = WC1 * C1.
4.5 Alternatives
There are alternative indicators that are also about computing efficiency, productivity,
etc. One significant form is to specify the ratio of output to input. Output gives the
things that we value, which goes along our objectives, and input is a sort of total.
Here, we briefly discuss four alternatives, namely, Classical Efficiency (CE), Water
Productivity (WaP), Effective Efficiency (EE), and also Resiliency (RE).
Fig. 4.10 Contour lines of C1-WR1-iSE trade-offs and patterns along four WC1 values
4 Sefficiency (Sustainable Efficiency)
• cSE and iSE go toward each other, if WR1 or R1 goes toward zero. In general,
iSE and cSE go toward each other as they get closer to WC1 * C1, which at the
limit, we have iSE = cSE = WC1 * C1.
4.5 Alternatives
There are alternative indicators that are also about computing efficiency, productivity,
etc. One significant form is to specify the ratio of output to input. Output gives the
things that we value, which goes along our objectives, and input is a sort of total.
Here, we briefly discuss four alternatives, namely, Classical Efficiency (CE), Water
Productivity (WaP), Effective Efficiency (EE), and also Resiliency (RE).
Fig. 4.10 Contour lines of C1-WR1-iSE trade-offs and patterns along four WC1 values