Environmental Engineering Reference
In-Depth Information
Figure 4. Organization of the Mexican Green Supply Chain Program
Results
The results of the program account for the improve-
ment projects implemented within the program's
framework. In total 146 enterprises, between 132
SMEs and 14 anchor companies, formulated im-
provement projects using the eco-efficiency and
cleaner production strategy. The projects included
the implementation of good housekeeping prac-
tices (adopting sound operation and maintenance
procedures), modification of technology (changes
in equipment and technology, substitution of input
materials) or new activities (on-site recycling,
modification of products).
When we take in to account an average of
5 years of perturbation of these benefits,
and considering a discount rate of 20%, the
net present value (NPV) of the economic
benefits yields a total of US $21.6 million.
It is essential to keep in mind that these
values are based on expected costs and
benefits, not actual outcomes. There may
be errors in estimation of the costs, ben-
efits, discount rates, or benefit durations.
Regardless of the details, the value created
by the program is impressive.
•
Environmental benefits:
The estimation
of the environmental benefits of the pro-
gram is also based on calculations elabo-
rated by the participants in the “learning
by doing” capacitating program. Total
environmental benefits are represented by
pollution prevention due to savings on raw
materials, energy use, water use and waste
generation. In total the formulated projects
are expected to save about 277,093 m
3
of
water use, prevent the generation of 4.3
•
Economic benefits:
The investment re-
quired for the implementation of these
eco-efficiency and cleaner production
projects totaled over US $8 million. The
mean payback period per project was 0.68
years, or just over 8 months, with a stan-
dard deviation of 1.05 years. The estimated
annual benefits of the formulated projects
represent over US $11 million per year.
