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Energy Management Working Group


Case Studies

This collection of energy management system (EnMS) case studies presents the real-world data and experiences of early adopters who use EnMS to achieve savings. These case studies describe the implementation and resulting savings from use of an EnMS, ISO 50001, or energy optimization projects.

Get Involved: Learn about the CEM Energy Management Leadership Awards, which showcase leading organizations and share their ISO 50001 successes. Now accepting entries for 2018 awards. 

Scan and choose from case studies on this page, filter by industry or country to the right, or search by keywords in the search bar below.


Friday, May 12, 2017

Maynilad Water Services, Inc. Global Energy Management Implementation Case Study

Maynilad Water Services, Inc. Global Energy Management Implementation Case Study

Established and implemented an Energy Management System leading to energy conservation while still meeting demand of expanding customer base

This case study describes how with the launch of the Energy Management System (EnMS) on June 5, 2015, Maynilad was able to focus its energy reduction efforts on facilities which had the greatest contribution to the overall energy consumption of the company. Each facility was evaluated to identify the different significant energy using equipment being used and target those to come up with opportunities for improvement.

Friday, May 12, 2017

Empresa Portuguesa das Águas Livres, S.A. Global Energy Management Implementation Case Study

Empresa Portuguesa das Águas Livres, S.A. Global Energy Management Implementation Case Study

Guia’s WWTP 0% - 100% energy self-sufficient

This case study describes how the "Guia’s WWTP 0% - 100% Energy Self-Sufficient” project started in February of 2016, leading to the public announcement that the WWTP is 100% self-sufficient in energy consumption in January of 2017. Due to a cogeneration system based on the use of the calorific value of biogas produced by the anaerobic sludge digestion to produce electric energy, as well as to the implementation of other measures, this WWTP changed from an intensive external energy consumer to an energy self-sufficient one.

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