Thursday 6 September 2012

Techincal questions in an interview

Q1:In a Tap changing transformer where is the tap connected, is it connected in the primary side or secondary side?
A:Tapings are connected to high voltage winding side, because of low current. If we connect tapings to low voltage side, sparks will produce while tap changing operation due to high current. 

Q2: What is difference between fuse and breaker?
A: Fuses are burned at the time of over current flows in the circuit but breakers are just open(not burn) at the time of over current flow. Fuses are used in only one time but breakers are used by multiple number of times.

Q3:What is the difference between delta-delta, delta-star transformer?
A:Delta-delta transformer is used at generating station or a receiving station for Change of Voltage (i,e) generally it is used where the Voltage is high & Current is low.Delta-star is a distribution kind of transformer where from secondary star neutral is taken as a return path and this configuration is used for Step down voltage phenomena.


Q4:Why transformer ratings are in kVA?  
A: Since the power factor of transformer is dependent on load we only define VA rating and does not include power factor .In case of motors, power factor depend on construction and hence rating of motors is in KWatts and include power factor.
Q5:How tube light circuit is connected and how it works?
A:A choke is connected in one end of the tube light and a starter is in series with the circuit. When supply is provided ,the starter will interrupt the supply cycle of AC. Due to the sudden change of supply the chock will generate around 1000volts . This volt will capable of to break the electrons inside the tube to make electron flow. once the current passes through the tube the starter circuit will be out of part. now there is no change of supply causes choke voltage normalized and act as minimize the current.
Q6:Why Human body feel Electric shock ?? n in an Electric train during running , We did nt feel any Shock ? why?
A:Unfortunately our body is a pretty good conductor of electricity, The golden rule is Current takes the lowest resistant path if you have insulation to our feet as the circuit is not complete (wearing rubber footwear which doing some repairs is advisable as our footwear is a high resistance path not much current flows through our body).The electric train is well insulated from its electrical system.
Q7:Why, when birds sit on transmission lines or current wires doesn't get shock?
A:Its true that if birds touch the single one line (phase or neutral) they don't get electrical shock... if birds touch 2 lines than the circuit is closed and they get electrical shock.. so if a human touch single one line(phase) then he doesn't get shock if he is in the air (not touching - standing on the ground if he is standing on the ground then touching the line (phase) he will get a shock because the ground on what we standing is like line (ground bed - like neutral)। and in the most of electric lines the neutral is grounded..so that means that human who touch the line closes the circuit between phase and neutral.
Q8:what happen if we give 220 volts dc supply to d bulb r tube light?
A:Bulbs [devices] for AC are designed to operate such that it offers high impedance to AC supply. Normally they have low resistance. When DC supply is applied, due to low resistance, the current through lamp would be so high that it may damage the bulb element.

Q9:Which motor has high Starting Torque and Staring current DC motor, Induction motor or Synchronous motor?
A:DC Series motor has high starting torque. We can not start the Induction motor and Synchronous motors on load, but can not start the DC series motor without load.
Q10:what is ACSR cable and where we use it?
A:ACSR means Aluminium conductor steel reinforced, this conductor is used in transmission & distribution.
Q11:What is vaccum currcuit breaker.define with cause and where be use it Device?
A:A breaker is normally used to break a ciruit. while breaking the circuit, the contact terminals will be separated. At the time of seperation an air gap is formed in between the terminals. Due to existing current flow the air in the gap is ionised and results in the arc. various mediums are used to quench this arc in respective CB's. but in VCB the medium is vaccum gas. since the air in the CB is having vaccum pressure the arc formation is interrupted. VCB's can be used upto 11kv.
Q12:what is the difference between synchronous generator & asynchronous generator?
A:In simple, synchronous generator supply's both active and reactive power but asynchronous generator(induction generator) supply's only active power and observe reactive power for magnetizing.This type of generators are used in windmills.

Q13:What is Automatic Voltage regulator(AVR)?
A:AVR is an abbreviation for Automatic Voltage Regulator.It is important part in Synchronous Generators, it controls theoutput voltage of the generator by controlling its excitation current. Thus it can control the output Reactive Power of the Generator.

 

Tuesday 5 June 2012

ISO 50001

http://www.convertpdftoword.org/get/?hash=%3C4%0C%06%25%06%02%19%17%07%0C%0B%1A%E7%F0%E8%FD%E2%E2%F7%B8%F6%EE%F8%91%9C%99%9D%97%82





Win the energy challenge with
ISO 50001







ISO 50001
energy management





ISO in brief
ISO is the International Organization for Standardization. ISO has a member-
ship of some 160
* national standards bodies from countries large and small,

* In June 2011

industrialized, developing and in transition, in all regions of the world. ISO’s
portfolio of over 18600* standards provides business, government and soci-
ety with practical tools for all three dimensions of sustainable development:
economic, environmental and social.
ISO standards make a positive contribution to the world we live in. They facili-
tate trade, spread knowledge, disseminate innovative advances in technol-
ogy, and share good management and conformity assessment practices.
ISO standards provide solutions and achieve benefits for almost all sectors
of activity, including agriculture, construction, mechanical engineering, man-
ufacturing, distribution, transport, medical devices, information and com-
munication technologies, the environment, energy, quality management,
conformity assessment and services.
ISO only develops standards for which there is a clear market requirement.
The work is carried out by experts in the subject drawn directly from the in-
dustrial, technical and business sectors that have identified the need for the
standard, and which subsequently put the standard to use. These experts
may be joined by others with relevant knowledge, such as representatives of
government agencies, testing laboratories, consumer associations and aca-
demia, and by international governmental and nongovernmental organiza-
tions.
An ISO International Standard represents a global consensus on the state of
the art in the subject of that standard.





ISO 50001 — What is it?
ISO 50001:2011, Energy management systems - Requirements with guidance for use, is a voluntary International Standard developed by ISO (International Organization for Standardization).
ISO 50001 gives organizations the requirements for energy management sys-
tems (EnMS).
ISO 50001 provides benefits for organizations large and small, in both public
and private sectors, in manufacturing and services, in all regions of the world.
ISO 50001 will establish a framework for industrial plants; commercial, institu-
tional, and governmental facilities; and entire organizations to manage energy.
Targeting broad applicability across national economic sectors, it is estimated

that the standard could influence up to 60% of the world’s energy use.*
ISO 50001
energy management

* This estimate is based on informa-
tion provided in the section, “World Energy Demand and Economic
Outlook”, in the International Energy
Outlook 2010, published by the US
Energy Information Administration.
This cites 2007 figures on global en-
ergy consumption by sector, including
7% by the commercial sector (defined
as businesses, institutions, and
organizations that provide services), and 51% by the industrial sector
(including manufacturing, agriculture, mining, and construction). As ISO
50001 is primarily targeted at the
commercial and industrial sectors,
adding the above figures provides an
approximate total of 60% of global
energy demand on which the stand-
ard could have a positive impact.






1

ISO 50001 — Why is it important?
Energy is critical to organizational operations and can be a major cost to or-
ganizations, whatever their activities. An idea can be gained by considering
the use of energy through the supply chain of a business, from raw materials
through to recycling.
In addition to the economic costs of energy to an organization, energy can im-
pose environmental and societal costs by depleting resources and contributing
to problems such as climate change.
The development and deployment of technologies for new energy sources and renewable sources can take time.
Individual organizations cannot control energy prices, government policies or
the global economy, but they can improve the way they manage energy in the
here and now. Improved energy performance can provide rapid benefits for an
organization by maximizing the use of its energy sources and energy-related
assets, thus reducing both energy cost and consumption. The organization will
also make positive contributions toward reducing depletion of energy resources
and mitigating worldwide effects of energy use, such as global warming.
ISO 50001 is based on the management system model that is already under-
stood and implemented by organizations worldwide. It can make a positive dif-
ference for organizations of all types in the very near future, while supporting
longer term efforts for improved energy technologies.










2

ISO 50001 — What will it do?

ISO 50001 will provide public and private sector organizations with manage-
ment strategies to increase energy efficiency, reduce costs and improve en-
ergy performance.
The standard is intended to provide organizations with a recognized frame-
work for integrating energy performance into their management practices.
Multinational organizations will have access to a single, harmonized stand-
ard for implementation across the organization with a logical and consistent
methodology for identifying and implementing improvements.
The standard is intended to accomplish the following:
Assist organizations in making better use of their existing energy-
     consuming assets
Create transparency and facilitate communication on the management
     of energy resources
Promote energy management best practices and reinforce good energy
    
management behaviours
Assist facilities in evaluating and prioritizing the implementation of new
    
energy-efficient technologies
Provide a framework for promoting energy efficiency throughout the
    
supply chain
Facilitate energy management improvements for greenhouse gas
     emission reduction projects
Allow integration with other organizational management systems such as
    
environmental, and health and safety.






3





ISO 50001 — How does it work?

ISO 50001 is based on the ISO management system model familiar to more
than a million organizations worldwide who implement standards such as
ISO 9001 (quality management), ISO 14001 (environmental management),
ISO 22000 (food safety), ISO/IEC 27001 (information security).
In particular, ISO 50001 follows the Plan-Do-Check-Act process for continual
improvement of the energy management system.
These characteristics enable organizations to integrate energy management
now with their overall efforts to improve quality, environmental management
and other challenges addressed by their management systems.
ISO 50001 provides a framework of requirements enabling organizations to:
Develop a policy for more efficient use of energy
Fix targets and objectives to meet the policy
Use data to better understand and make decisions concerning energy
    
use and consumption
Measure the results
Review the effectiveness of the policy
Continually improve energy management.

ISO 50001 can be implemented individually or integrated with other manage-
ment system standards.









4

 

ISO 50001 — Who can it benefit ?

Like all ISO management system standards, ISO 50001 has been designed
for implementation by any organization, whatever its size or activities, wheth-
er in public or private sectors, regardless of its geographical location.
ISO 50001 does not fix targets for improving energy performance. This is up
to the user organization, or to regulatory authorities. This means than any
organization, regardless of its current mastery of energy management, can
implement ISO 50001 to establish a baseline and then improve on this at a
rhythm appropriate to its context and capacities.
ISO 50001 — To certify or not?

Like all ISO management system standards, ISO 50001 can be implemented
solely for the internal and external benefits it provides the user organizations
and the latter’s stakeholders and customers. Certification by an independent
auditor of conformity of the user’s energy management system to ISO 50001
is not a requirement of the standard itself. To certify or not is a decision to be
taken by the ISO 50001 user, unless imposed by regulation.
Alternatives to independent (third party) certification are to invite the organi-
zation’s customers to verify its implementation of ISO 50001 in conformity
with the standard (second party verification), or to self-declare its conformity.



5
 


ISO 50001 — What’s in the standard?

The content of ISO 50001 is structured as follows:
Foreword
Introduction (extract from ISO 50001)
The purpose of this International Standard is to enable organizations to
establish the systems and processes necessary to improve energy perfor-
mance, including energy efficiency, use, and consumption. Implementation of
this standard is intended to lead to reductions in greenhouse gas emissions,
energy cost, and other related environmental impacts, through systematic
management of energy. This International Standard is applicable to all types
and sizes of organizations irrespective of geographical, cultural or social con-
ditions. Successful implementation depends on commitment from all levels
and functions of the organization, and especially from top management.
This International Standard specifies requirements of an energy manage-
ment system (EnMS) for an organization to develop and implement an energy
policy, establish objectives, targets, and action plans, which take into ac-
count legal requirements and information related to significant energy use.
An EnMS enables an organization to achieve its policy commitments, take
action as needed to improve its energy performance and demonstrate the
conformity of the system to the requirements of this International Standard.
Application of this International Standard can be tailored to fit the require-
ments of an organization — including the complexity of the system, degree
of documentation, and resources — and applies to the activities under the
control of the organization.
This International Standard is based on the Plan-Do-Check-Act continual
improvement framework and incorporates energy management into everyday
organizational practices.






ISO in brief 
ISO is the International Organization for Standardization. ISO has a member-
ship of some 160* national standards bodies from countries large and small,

* In June 2011

industrialized, developing and in transition, in all regions of the world. ISO’s 
portfolio of over 18 600* standards provides business, government and soci-
ety with practical tools for all three dimensions of sustainable development :
economic, environmental and social.
ISO standards make a positive contribution to the world we live in. They facili-
tate trade, spread knowledge, disseminate innovative advances in technol-
ogy, and share good management and conformity assessment practices.
ISO standards provide solutions and achieve benefits for almost all sectors
of activity, including agriculture, construction, mechanical engineering, man-
ufacturing, distribution, transport, medical devices, information and com-
munication technologies, the environment, energy, quality management,
conformity assessment and services.
ISO only develops standards for which there is a clear market requirement. 
The work is carried out by experts in the subject drawn directly from the in-
dustrial, technical and business sectors that have identified the need for the
standard, and which subsequently put the standard to use. These experts
may be joined by others with relevant knowledge, such as representatives of
government agencies, testing laboratories, consumer associations and aca-
demia, and by international governmental and nongovernmental organiza-
tions.
An ISO International Standard represents a global consensus on the state of
the art in the subject of that standard. 



ISO 50001 — What is it ? 
ISO 50001:2011, Energy management systems - Requirements with guidance for use, is a voluntary International Standard developed by ISO (International Organization for Standardization). 
ISO 50001 gives organizations the requirements for energy management sys-
tems (EnMS). 
ISO 50001 provides benefits for organizations large and small, in both public 
and private sectors, in manufacturing and services, in all regions of the world. 
ISO 50001 will establish a framework for industrial plants ; commercial, institu-
tional, and governmental facilities ; and entire organizations to manage energy. 
Targeting broad applicability across national economic sectors, it is estimated

that the standard could influence up to 60 % of the world’s energy use.*
ISO 50001
energy management

* This estimate is based on informa-
tion provided in the section, “ World Energy Demand and Economic
Outlook ”, in the International Energy 
Outlook 2010, published by the US 
Energy Information Administration. 
This cites 2007 figures on global en-
ergy consumption by sector, including 
7 % by the commercial sector (defined 
as businesses, institutions, and
organizations that provide services), and 51 % by the industrial sector
(including manufacturing, agriculture, mining, and construction). As ISO
50001 is primarily targeted at the 
commercial and industrial sectors, 
adding the above figures provides an 
approximate total of 60 % of global 
energy demand on which the stand-
ard could have a positive impact.



ISO 50001 — Why is it important ? 
Energy is critical to organizational operations and can be a major cost to or-
ganizations, whatever their activities. An idea can be gained by considering 
the use of energy through the supply chain of a business, from raw materials 
through to recycling. 
In addition to the economic costs of energy to an organization, energy can im-
pose environmental and societal costs by depleting resources and contributing 
to problems such as climate change. 
The development and deployment of technologies for new energy sources and renewable sources can take time. 
Individual organizations cannot control energy prices, government policies or 
the global economy, but they can improve the way they manage energy in the 
here and now. Improved energy performance can provide rapid benefits for an 
organization by maximizing the use of its energy sources and energy-related 
assets, thus reducing both energy cost and consumption. The organization will 
also make positive contributions toward reducing depletion of energy resources 
and mitigating worldwide effects of energy use, such as global warming. 
ISO 50001 is based on the management system model that is already under-
stood and implemented by organizations worldwide. It can make a positive dif-
ference for organizations of all types in the very near future, while supporting 
longer term efforts for improved energy technologies. 


ISO 50001 — What will it do ? 

ISO 50001 will provide public and private sector organizations with manage-
ment strategies to increase energy efficiency, reduce costs and improve en-
ergy performance. 
The standard is intended to provide organizations with a recognized frame-
work for integrating energy performance into their management practices. 
Multinational organizations will have access to a single, harmonized stand-
ard for implementation across the organization with a logical and consistent 
methodology for identifying and implementing improvements. 
The standard is intended to accomplish the following : 
• Assist organizations in making better use of their existing energy-
consuming assets 
• Create transparency and facilitate communication on the management 
of energy resources 
• Promote energy management best practices and reinforce good energy 
management behaviours 
• Assist facilities in evaluating and prioritizing the implementation of new 
energy-efficient technologies 
• Provide a framework for promoting energy efficiency throughout the 
supply chain 
• Facilitate energy management improvements for greenhouse gas 
emission reduction projects 
• Allow integration with other organizational management systems such as 
environmental, and health and safety. 



ISO 50001 — How does it work ? 

ISO 50001 is based on the ISO management system model familiar to more 
than a million organizations worldwide who implement standards such as 
ISO 9001 (quality management), ISO 14001 (environmental management), 
ISO 22000 (food safety), ISO/IEC 27001 (information security). 
In particular, ISO 50001 follows the Plan-Do-Check-Act process for continual 
improvement of the energy management system. 
These characteristics enable organizations to integrate energy management 
now with their overall efforts to improve quality, environmental management 
and other challenges addressed by their management systems. 
ISO 50001 provides a framework of requirements enabling organizations to : 
• Develop a policy for more efficient use of energy 
• Fix targets and objectives to meet the policy 
• Use data to better understand and make decisions concerning energy 
use and consumption 
• Measure the results 
• Review the effectiveness of the policy 
• Continually improve energy management. 

ISO 50001 can be implemented individually or integrated with other manage-
ment system standards. 

ISO 50001 — Who can it benefit ? 

Like all ISO management system standards, ISO 50001 has been designed 
for implementation by any organization, whatever its size or activities, wheth-
er in public or private sectors, regardless of its geographical location. 
ISO 50001 does not fix targets for improving energy performance. This is up 
to the user organization, or to regulatory authorities. This means than any 
organization, regardless of its current mastery of energy management, can 
implement ISO 50001 to establish a baseline and then improve on this at a 
rhythm appropriate to its context and capacities. 
ISO 50001 — To certify or not ? 

Like all ISO management system standards, ISO 50001 can be implemented 
solely for the internal and external benefits it provides the user organizations 
and the latter’s stakeholders and customers. Certification by an independent 
auditor of conformity of the user’s energy management system to ISO 50001 
is not a requirement of the standard itself. To certify or not is a decision to be 
taken by the ISO 50001 user, unless imposed by regulation. 
Alternatives to independent (third party) certification are to invite the organi-
zation’s customers to verify its implementation of ISO 50001 in conformity 
with the standard (second party verification), or to self-declare its conformity. 

5.ISO 50001 — What’s in the standard ? 

The content of ISO 50001 is structured as follows : 
Foreword 
Introduction (extract from ISO 50001) 
“ The purpose of this International Standard is to enable organizations to 
establish the systems and processes necessary to improve energy perfor-
mance, including energy efficiency, use, and consumption. Implementation of 
this standard is intended to lead to reductions in greenhouse gas emissions, 
energy cost, and other related environmental impacts, through systematic 
management of energy. This International Standard is applicable to all types 
and sizes of organizations irrespective of geographical, cultural or social con-
ditions. Successful implementation depends on commitment from all levels 
and functions of the organization, and especially from top management. 
“ This International Standard specifies requirements of an energy manage-
ment system (EnMS) for an organization to develop and implement an energy 
policy, establish objectives, targets, and action plans, which take into ac-
count legal requirements and information related to significant energy use. 
An EnMS enables an organization to achieve its policy commitments, take 
action as needed to improve its energy performance and demonstrate the 
conformity of the system to the requirements of this International Standard. 
Application of this International Standard can be tailored to fit the require-
ments of an organization — including the complexity of the system, degree 
of documentation, and resources — and applies to the activities under the 
control of the organization. 
“ This International Standard is based on the Plan-Do-Check-Act continual 
improvement framework and incorporates energy management into everyday 
organizational practices. 


6“ NOTE : This approach can be briefly described as follows. 
►►Plan : conduct the energy review and establish the baseline, energy per-
formance indicators (EnPIs), objectives, targets and action plans neces-
sary to deliver results in accordance with opportunities to improve energy 
performance and the organization’s energy policy. 
►►Do : implement the energy management action plans. 
►►Check : monitor and measure processes and the key characteristics of its 
operations that determine energy performance against the energy policy 
and objectives and report the results. 
►►Act : take actions to continually improve energy performance and 
the EnMS. 

The basis of this approach is shown in Figure 1. (next page) 

Continual 
improvement
Energy policy





Management 
review







Internal audit 
of the EnMS




Energy planning




Implementation 
and operation




Monitoring
measurement and
Checking analysis








Nonconformities, 
correction, corrective 
and preventive action 






Figure 1 : Energy management system model.


8“ Worldwide application of this International Standard contributes to more 
efficient use of available energy sources, enhanced competitiveness, and 
to reduce greenhouse gases emissions and other related environmental im-
pacts. This International Standard is applicable irrespective of the types of 
energy used. 
“ This International Standard can be used for certification, registration and 
self-declaration of an organization’s EnMS. It does not establish absolute 
requirements for energy performance beyond the commitments in the energy 
policy of the organization and its obligation to comply with applicable legal 
requirements and other requirements. Thus, two organizations carrying out 
similar operations, but having different energy performance, can both con-
form to its requirements. 
“ The document is based on the common elements found in all of ISO’s man-
agement system standards, ensuring a high level of compatibility with ISO 
9001 (quality management) and ISO 14001 (environmental management). 
The organization can choose to integrate ISO 50001 with other management 
systems such as quality, environment, occupational health and safety, and 
other.” 

1 Scope
2 Normative references
3 Terms and definitions
4 Energy management system requirements
4.1 General requirements
4.2 Management responsibility
4.2.1 Top management
4.2.2 Management representative
4.3 Energy policy
4.4 Energy planning
4.4.1 General
4.4.2 Legal and other requirements










4.4.3 Energy review
4.4.4 Energy baseline
4.4.5 Energy performance indicators
4.4.6 Energy objectives, energy targets and energy management
action plans
4.5 Implementation and operation
4.5.1 General
4.5.2 Competence, training and awareness
4.5.3 Communication
4.5.4 Documentation
4.5.5 Operational control
4.5.6 Design
4.5.7 Procurement of energy services, products, equipment
and energy
4.6 Checking
4.6.1 Monitoring, measurement and analysis
4.6.2 Evaluation of legal requirements and other requirements
4.6.3 Internal audit of the EnMS
4.6.4 Nonconformities, correction, corrective, and preventive action
4.6.5 Control of records
4.7 Management review
4.7.1 General
4.7.2 Input to management review
4.7.3 Output from management review


In addition, ISO 50001 includes informative annexes giving guidance on how 
to implement the above requirements and a table comparing the require-
ments of ISO 50001 with other ISO management system standards. 

ISO 50001 — How was it developed ? 

The request to ISO to develop an international energy management standard 
came from the United Nations Industrial Development Organization (UNIDO) 
which had recognized industry’s need to mount an effective response to cli-
mate change and to the proliferation of national energy management stand-
ards. 
ISO, in turn, had identified energy management as one of the top five fields 
for the development of International Standards and, in 2008, created a pro-
ject committee, ISO/PC 242, Energy management, to carry out the work. 
ISO/PC 242 was led by ISO members for the United States (American Nation-
al Standards Institute - ANSI) and Brazil (Associação Brasileira de Normas 
Técnicas - ABNT). 
Experts from the national standards bodies of 44 ISO member countries par-
ticipated within ISO/PC 242 in the development of ISO 50001, with another 
14 countries as observers. The standard also benefitted from the participa-
tion of development organizations including UNIDO and the World Energy 
Council (WEC). 
ISO 50001 has been able to draw on numerous national or regional energy 
management standards, specifications and regulations, including ones de-
veloped in China, Denmark, Ireland, Japan, Republic of Korea, Netherlands, 
Sweden, Thailand, the USA and the European Union. 

Resources 

• ISO’s Website www.iso.org 
(in English and French, with top levels in Russian and individual 
publications in other languages) The “ Hot topics ” section includes 
“ Energy ”, “ Climate change” and “ Sustainable development ” 
• ISO Focus+ magazine www.iso.org/iso/isofocus+ 
(10 editions annually in English and French) 
• ISO videos www.youtube.com/PlanetISO 
• ISO Café www.iso.org/isocafe 

Follow us on Twitter ! www.twitter.com/isostandards 
Join us on Facebook ! www.facebook.com/isostandards 

Contact the ISO member in your country : www.iso.org/isomembers




International Organization for Standardization 
ISO Central Secretariat 
1, chemin de la Voie Creuse Case Postale 56 
CH - 1211 Genève 20 
Switzerland © ISO 2011-06/3 000
central@iso.org All rights reserved
www.iso.org ISBN 978-92-67-10552-9

NOTE: This approach can be briefly described as follows.
Plan: conduct the energy review and establish the baseline, energy per-
    
formance indicators (EnPIs), objectives, targets and action plans neces-
    
sary to deliver results in accordance with opportunities to improve energy
     performance and the organization’s energy policy.
Do: implement the energy management action plans.
Check: monitor and measure processes and the key characteristics of its
    
operations that determine energy performance against the energy policy
    
and objectives and report the results.
Act: take actions to continually improve energy performance and
    
the EnMS.

The basis of this approach is shown in Figure 1. (next page)







7


Worldwide application of this International Standard contributes to more
efficient use of available energy sources, enhanced competitiveness, and
to reduce greenhouse gases emissions and other related environmental im-
pacts. This International Standard is applicable irrespective of the types of
energy used.
This International Standard can be used for certification, registration and
self-declaration of an organization’s EnMS. It does not establish absolute
requirements for energy performance beyond the commitments in the energy
policy of the organization and its obligation to comply with applicable legal
requirements and other requirements. Thus, two organizations carrying out
similar operations, but having different energy performance, can both con-
form to its requirements.
The document is based on the common elements found in all of ISO’s man-
agement system standards, ensuring a high level of compatibility with ISO
9001 (quality management) and ISO 14001 (environmental management).
The organization can choose to integrate ISO 50001 with other management
systems such as quality, environment, occupational health and safety, and
other.”

1           Scope
2           Normative references
3           Terms and definitions
4           Energy management system requirements
4.1        General requirements
4.2        Management responsibility
4.2.1        Top management
4.2.2        Management representative
4.3        Energy policy
4.4        Energy planning
4.4.1        General
4.4.2        Legal and other requirements


9







4.4.3        Energy review
4.4.4        Energy baseline
4.4.5        Energy performance indicators
4.4.6        Energy objectives, energy targets and energy management
action plans
4.5        Implementation and operation
4.5.1        General
4.5.2        Competence, training and awareness
4.5.3        Communication
4.5.4        Documentation
4.5.5        Operational control
4.5.6        Design
4.5.7        Procurement of energy services, products, equipment
and energy
4.6        Checking
4.6.1        Monitoring, measurement and analysis
4.6.2        Evaluation of legal requirements and other requirements
4.6.3        Internal audit of the EnMS
4.6.4        Nonconformities, correction, corrective, and preventive action
4.6.5        Control of records
4.7        Management review
4.7.1        General
4.7.2        Input to management review
4.7.3        Output from management review


In addition, ISO 50001 includes informative annexes giving guidance on how
to implement the above requirements and a table comparing the require-
ments of ISO 50001 with other ISO management system standards.

10






ISO 50001 — How was it developed?

The request to ISO to develop an international energy management standard
came from the United Nations Industrial Development Organization (UNIDO)
which had recognized industry’s need to mount an effective response to cli-
mate change and to the proliferation of national energy management stand-
ards.
ISO, in turn, had identified energy management as one of the top five fields
for the development of International Standards and, in 2008, created a pro-
ject committee, ISO/PC 242, Energy management, to carry out the work.
ISO/PC 242 was led by ISO members for the United States (American Nation-
al Standards Institute - ANSI) and Brazil (Associação Brasileira de Normas
Técnicas - ABNT).
Experts from the national standards bodies of 44 ISO member countries par-
ticipated within ISO/PC 242 in the development of ISO 50001, with another
14 countries as observers. The standard also benefitted from the participa-
tion of development organizations including UNIDO and the World Energy
Council (WEC).
ISO 50001 has been able to draw on numerous national or regional energy
management standards, specifications and regulations, including ones de-
veloped in China, Denmark, Ireland, Japan, Republic of Korea, Netherlands,
Sweden, Thailand, the USA and the European Union.





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