There is a worldwide interest in developing standards to make energy consumption more efficient in each country. Around the world, great efforts are being made to reduce the energy bill, which is why energy efficiency standards have been developed.
Energy efficiency involves optimizing energy consumption through technologies and changes in habits in order to use less energy than average. Energy efficiency legislation around the world depends largely on the energy market in each region.

ISO 50001

The International Organization for Standardization (known by the acronym ISO) is an organization for the creation of international standards composed of various national standards organizations.

It is common for the standards and certifications that the International Standards Organization (ISO) defines and develops to often become law or form the basis for industry standards, an example of this is ISO 50001.

ISO 50001 is the most widely used corporate energy management standard in the world. The certification of an Energy Management System according to ISO 50001, helps organizations to implement an energy policy and to properly manage the energy aspects derived from their activity, such as services, facilities, products, among others, which translates into real and quantifiable energy cost savings in organizations. 

This standard provides the necessary tools to identify the most energy-consuming activities that represent an “energy and economic leakage“. Once identified, organizations activate a plan of measures to minimize the energy consumption of their own facilities and systems in an integrated manner, while maximizing their energy efficiency.

The ISO 50001 standard provides the following improvements:

– Structural improvements: Improves alignment with other management systems, making it easier for organizations to integrate them.

– Greater impact on continuous improvement: Emphasizes the need to work on continuous improvement as a key factor of an energy management system, this improvement being more clearly related to the information derived from the analysis and evaluation of the system.

– Greater focus on the business: It focuses on the business, thanks to the implementation of a more strategic and tactical Energy Planning Process. It also pays attention to understanding the organization and its context.

– Improved energy performance: Elevates the ability to expose energy performance improvement by increasing metrics with an energy performance indicator, an energy performance indicator benchmark and energy performance improvement.

– Planning, analysis and execution: Influences data capture, planning of the EMS and its energy processes, as well as energy performance improvement, compliance with legal requirements and achievement of energy targets.

Mexican regulations

In Mexico there are several organizations that regulate the regulations related to the use of energy, such as the National Commission for the Efficient Use of Energy (CONUEE), which is a decentralized administrative agency of the Ministry of Energy, created through the Law for energy harnessing and whose main objective is to promote energy efficiency and act as a technical agency for the sustainable use of energy.

Además, existen las Normas Oficiales Mexicanas (NOM), las cuales son el instrumento por el cual se regulan productos, procesos y servicios ofrecidos por el sector público y privado. Las NOM son regulaciones técnicas de carácter obligatorio que establecen especificaciones y procedimientos para garantizar que los productos, procesos y servicios cumplan con requisitos mínimos de información, seguridad, calidad, entre otros.In addition, there are the Official Mexican Standards (NOM), which are the instrument through which products, processes and services offered by the public and private sectors are regulated. NOMs are mandatory technical regulations that establish specifications and procedures to ensure that products, processes and services comply with minimum requirements for information, safety, quality, among others.

Below, we share a list of current standards (NOM) related to energy efficiency: 

  • NOM-003-ENER-2011 (PDF) Thermal efficiency of water heaters for domestic and commercial use. Limits, test method and labeling.
  • NOM-003-ENER-2021 (PDF). Thermal efficiency of water heaters for domestic and commercial use. Limits, test method and labeling.
  • NOM-004-ENER-2014 (PDF) Energy efficiency for motor-pump assembly, for pumping clean water for domestic use, in powers from 0.180 kW (¼ HP) up to 0.750 kW (1 HP).- Limits, test methods and labeling.
  • NOM-005-ENER-2016 (PDF) Energy efficiency of household appliance clothes washers. Limits, test method and labeling.
  • NOM-006-ENER-2015 (PDF) Electromechanical energy efficiency in deep well pumping systems in operation – Limits and test method.
  • NOM-007-ENER-2014 (PDF) Energy efficiency for lighting systems in non-residential buildings.
  • NOM-008-ENER-2001 (PDF) Energy efficiency in buildings, non-residential building envelope.
  • NOM-009-ENER-2014 (PDF) Energy efficiency in industrial thermal insulation systems.
  • NOM-010-ENER-2004  (PDF) Energy efficiency of deep well submersible motor pump assembly. Limits and test method.
  • NOM-011-ENER-2006 (PDF) Energy efficiency in central, package or split type air conditioners. Limits, test methods and labeling.
  • NOM-012-ENER-2019 (PDF) Energy efficiency of condensing and evaporating units for refrigeration. Limits, test methods and labeling.
  • NOM-013-ENER-2013 (PDF) Energy efficiency for street lighting systems.
  • NOM-014-ENER-2004  (PDF) Energy efficiency of alternating current, single-phase, induction, squirrel cage, air-cooled motors, rated power from 0,180 to 1,500 kW. Limits, test method and marking.
  • NOM-015-ENER-2018 (PDF) Energy efficiency of household appliance refrigerators and freezers. Limits, test methods and labeling.
  • NOM-016-ENER-2016, (PDF) Energy efficiency of alternating current, three-phase, induction, squirrel cage type motors, in rated power from 0.746 kW to 373 kW. Limits, test methods and marking.
  • NOM-017-ENER/SCFI-2012 (PDF) Energy efficiency and safety requirements for self-ballasted compact fluorescent lamps. Limits and test methods.
  • NOM-018-ENER-2011  (PDF) Thermal insulation for buildings. Characteristics, limits and test methods.
  • NOM-019-ENER-2009 (PDF) Thermal and electrical efficiency of mechanized tortilla machines. Limits, test method and marking.
  • NOM-020-ENER-2011 (PDF) Energy efficiency in buildings, Building envelope for residential use.
  • NOM-021-ENER/SCFI-2017 (PDF) Energy efficiency and user safety requirements for room-type air conditioners. Limits, test methods and labeling.
  • NOM-022-ENER/SCFI-2014 (PDF) Energy efficiency and user safety requirements for self-contained commercial refrigeration appliances. Limits, test methods and labeling.
  • NOM-023-ENER-2018 (PDF) Energy efficiency in split type air conditioners, free discharge and without air ducts. Limits, test methods and labeling.
  • NOM-024-ENER-2012 (PDF) Thermal and optical characteristics of glass and glazing systems for buildings. Labeling and test methods.
  • NOM-025-ENER-2013 (PDF) Thermal efficiency of domestic appliances for cooking food using L.P. gas or natural gas. Limits, test methods and labeling.
  • NOM-026-ENER-2015 (PDF) Energy efficiency in split type air conditioners (Inverter) with variable refrigerant flow, free discharge and without air ducts. Limits, test methods and labeling.
  • NOM-027-ENER/SCFI-2018 (PDF) Thermal performance, gas savings and safety requirements for solar water heaters and solar water heaters with water heater backup using L.P. gas or natural gas as fuel. Specifications, test methods and labeling.
  • NOM-028-ENER-2017 (PDF) Energy efficiency of lamps for general use. Limits and test methods.
  • NOM-029-ENER-2017 (PDF) Energy efficiency of external power supplies. Limits, test methods, marking and labeling.
  • NOM-030-ENER-2016 (PDF) Luminous efficiency of integrated light-emitting diode (led) lamps for general lighting. Limits and test methods.
  • NOM-031-ENER-2019 (PDF). Energy efficiency for led luminaires for illumination of roads and public outdoor areas. Specifications and test methods.
  • NOM-032-ENER-2013 (PDF) Maximum electrical power limits for equipment and appliances that demand standby power. Test methods and labeling.
  • NOM-033-ENER-2019 (PDF) Energy efficiency of alternating current motors, air-cooled, in rated power greater than or equal to 1 W and less than 180 W. Limits, test method and marking.
  • NOM-163-SEMARNAT-ENER-SCFI-2013 Carbon dioxide (CO2) emissions from exhaust and its equivalence in terms of fuel efficiency, applicable to new motor vehicles with gross vehicle weight up to 3 857 kilograms.

Alher Sem is your best ally for NOM’S compliance. We offer consulting services, training, safety audits and implementation of processes that will help you comply with the NOM’S.

Sources: Mexican Government.

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