Wednesday, 9 October 2013

ISO 50001 : 2011 Energy Management Systems (Basic overview)

ISO 50001 : 2011 Energy Management Systems was released by International Organization for Standardization in June 2011. It specifies a standard for improving energy efficiency of an Organization by achieving continual improvement in it's energy usage.

ISO 50001 offers a systematic approach for Energy management within an Organization. While Energy Audit which is certainly beneficial to a single unit or plant or office in saving energy, the ISO 50001 framework works across the Organization. It may still be required to audit individual plants or facilities as part of the policy framework developed for an Organization.

It provides a framework of requirements for Organizations to :
  1. Develop a policy to improve energy efficiency
  2. Set targets and objectives
  3. Carry out energy audit
  4. Measure results
  5. Review policy
  6. Ensure continual improvement in energy efficiency
In the present scenario where the energy costs are at an all time high ISO 50001 provides the necessary approach path to achieve energy conservation and energy efficiency goals of a Company in a systematic manner. It offers a blueprint for energy management policy and a universal process that can be applied across Organization including factories, offices, commercial facilities etc.


Energy Efficiency by ISO 50001 Energy Management System


The most important aspect of ISO 50001 is continuous improvement in energy efficiency through Action => Data collection => Data Analysis => Further Action. Energy Audit forms a critical part of the ISO 50001 framework implementation as it calls for performance review at critical points and enables a strong feedback based system. It may be noted that it is advisable for a plant to undergo an Energy Audit at periodic interval for achieving optimum level of energy usage.

The benefits of ISO 50001 to an Organization are as follows :
  1. Ensure optimum energy usage and thereby reduce cost across its manufacturing facilities, offices, warehouses etc.
  2. Improve its competitiveness by ensuring optimum cost of production as energy forms a sizable part of input cost.
  3. Improve it's image by projecting itself as an environmental conscious Company.
  4. Ensures uniformity in approach and better output through individual contribution for Energy Efficiency.
If you would like to know more about this, please get in touch with us today. We offer variety of services in Energy Audit (Electrical and Thermal), ISO 50001 - Consulting, Implementation and Training, Solar Power - Consulting, Training and Project Execution., please drop us a mail to info@econserve.in or get in touch with us through our Contact Us form.

Tuesday, 3 September 2013

Energy Audit - How much energy can your plant save?

Energy Audit is an important Energy Conservation and Energy Efficiency exercise carried out annually or biennially by Industrial plants and Commercial facilities. The obvious reason for a plant to go for an Energy Audit is the saving of energy through Energy Conservation and Energy Efficiency measures. This saving translates into monetary saving and hence can have a direct impact on profitability of a Company. It is also an obvious step towards sustainability.

Although Energy Audit in itself can result in saving of Energy the recommendations made post complete survey, study and analysis as part of Energy Audit results in far more savings. The typical savings for a plant can range from 15% to 25% or more. The savings vary from plant to plant as there are various factors that can impact the same :
  1. Age and type of the plant.
  2. Time since last energy audit.
  3. Plant load composition.
  4. Modifications in the plant.
  5. Energy saving measures undertaken.
  6. Plant / Company Policies.
  7. Types of fuel used in the Plant.
  8. Energy billing type.
  9. Plant location.
And many such factors.

There is, thus no specific answer, as to how much energy a plant could save post an Energy Audit. An estimate could certainly be provided and in all cases, based on our experience with various Clients across India and overseas, Energy Audit could prove to be useful and economically viable. This is especially true in the present day scenario when Energy costs are ever-rising and are expected to rise further.

Enerco Energy Solutions LLP has been at the forefront of advising Industrial Plants on Green Energy initiatives such as Energy Optimization, Energy Audit, Solar Power, PV Solar etc. If you wish to carry out Energy Audit of your plant please send us the details in the Energy Audit Questionnaire.

Sunday, 13 January 2013

Energy Audit - Top 5 Reasons to go for it TODAY !

Energy Audit – Top 5 Reasons to go for it TODAY !

1.     Energy Audit which results in Energy Saving for a Plant translates into Significant Saving on Production Costs which can be anywhere from 5% to 10% depending on size of the plant and various other factors.
C  Energy is the 2nd largest component in the Production Cost. In 2012 - almost all the States of India hiked power prices with hike ranging from 5% to 30%. With ever-rising cost of Energy – Energy Conservation and Energy Efficiency can directly impact P&L Statement. Energy Audit will thus result in significant Energy Saving - as mentioned in this post - Does Energy Audit really save Energy? [link]

2.    Energy Audit works for every single Plant or Commercial Facility as there is always scope for Energy Optimization through Energy Conservation & Energy Efficiency.
C  Every plant goes through some changes over a period of time. Moreover an external Energy Audit team works across departments and brings in rich experience gained from Energy Audit of several plants. This not only results in gaining fresh perspective of Energy saving possibility by an external team also results in bench-marking based on similar parameters.

3.  Energy Audit gives a positive orientation to Preventive Maintenance, Safety and Quality Control programs thereby improving the overall efficiency and output of existing system.
C  Energy Audit does not mean only studying the energy aspects but also a comprehensive study of the plant with respect to performance and output. As mentioned in the New Age Industrial Energy Audit [link] post - an Energy Audit includes several aspects of improvement in output at an Industrial plant with Energy Conservation and Energy Efficiency as the central theme.
   
4.  Nearly all the Industrial Units and Commercial Complexes have a potential to save 10-15% on Energy Bills (in Electrical Power alone) and additional savings in Thermal Energy.
C  Verified by Government Agencies and hence BEE has selected Designated Consumers to carry out periodic Energy Audit. In any case an Industrial Plant or Commercial Facility is certain to gain from an Energy Audit which gives them an opportunity to periodically review their Energy goals and ensure optimum energy levels for the plant.
 
5.     Many of the Energy Saving measures recommended as part of an Energy Audit may require little or no investment but results in significant savings.
C  Energy Audit Report [link] - submitted at the end of the Energy Audit - consists of several recommendations including many which may require negligible or no investment – but can result in savings of 5 – 8%. Further savings possible through implementation of additional recommendations in the report.


To know more please read - Energy Audit : Why Should a Plant go for it [link].

If you are interested in a FREE Assessment of Potential Energy Saving in your plant and a Quote for Energy Audit - please download the questionnaire [link] and mail us the details on info@econserve.in

Tuesday, 16 October 2012

Energy Audit :: Why should a Plant go for it?

Energy Audit :: Why should a Plant go for it?

Energy Audit is an exercise carried out for an Industrial Plant, Thermal Power Plant or a Commercial Facility as a first step towards achieving Energy Conservation and Energy Efficiency. As mentioned in one of our previous posts it is a complex technical assessment which results in achieving optimum energy level. 

More often this crucial exercise is carried out for Industrial Plants or Thermal Power Plants as Energy forms a greater component in the production cost. With the ever-rising cost of Energy (Fuel, Coal etc.) and Grid Electrical Power it is a necessary step towards achieving optimum Energy level. The term Specific Energy Consumption (SEC) is commonly used to determine the energy required to manufacture or process a particular unit of plant output (eg. kWh / T for a Steel plant or litres / kWh for a D.G. Set etc.). For an Industrial Plant SEC may include all possible energy that has been used in the product manufacturing or processing and not just electrical power.

There are several reasons why a Plant should ensure a periodic and comprehensive Energy Audit (Thermal + Electrical)., majority of them are :
  1. Energy forms a major component in Production Cost and will continue to increase its share for an Industrial Plant as Energy costs are rising every day. In many cases it is the 2nd largest component in Production cost next only to Labor. Thus an Energy Audit can significantly and positively impact a Plant's Profit & Loss Statement.
  2. Any Industrial Plant undergoes a change due to expansion or modification or modernization - always presenting an opportunity for Energy Optimization. An Energy Audit will thus reveal potential areas to save energy and improve efficiency.
  3. Energy being a topic of high interest - constant innovation takes place with regards to modernization of equipment and retrofits for existing equipment. Energy Audit enables a plant to understand about continuous opportunities in a plant to achieve energy optimization. In fact our post on New Age Industrial Energy Audit focuses on this point.
  4. Several Energy-intensive plants may have a permanent Energy Auditor or Energy Manager. However there are several benefits of an external Energy Audit team which works across various departments - Electrical, Mechanical, Maintenance, Production etc. of a plant. Moreover an external team is better equipped to achieve Energy Conservation and Energy Efficiency through energy audit as it brings a focused approach and past experience of several plants which enables in bench-marking including successful case-studies of past implementations.
  5. Contrary to the popular belief an Energy Audit in itself can actually save Energy (Does Energy Audit really save Energy?) without further investments as well. This is the case because the Energy Audit report which is submitted after the Energy Audit contains several key information about the plant such as energy consumption trend, energy calculations, areas for improvement etc. and of course the recommendations. 
  6. The Energy Audit report submitted at the end of the site visit phase (for measurement, collection of data, interaction with plant people etc.). The recommendations in the Energy Audit Report are not always requiring high investment and are in any case having a payback of less than 18 months or in some cases 24 months - which is generally acceptable to the Management. They are categorized into 3 types -
    • ZERO / Low investment recommendations - mainly related to operational changes or utilizing existing resources to optimize energy consumption.
    • Medium investment recommendations - typically the ones with requiring mid-size investments in retrofits or modifications in the existing system for Energy optimization.
    • High investment recommendations - the ones requiring larger investments. (The categorization value is specific to a plant based on various factor such as size, energy consumption, SEC etc.)
  7. Energy Audit in a Plant creates an awareness and a sense of urgency among the Plant personnels which in turn translates into further energy saving. It is established that simple methods of saving energy (such as manually Switching off an equipment when not in use) can be achieved through human intervention. Thus Energy Audit helps a plant to achieve further savings - however small without any investments !
  8. It gives a positive orientation to Preventive Maintenance. This is mainly because although Energy Audit focuses primarily on Energy optimization it also points out areas which can perform better with timely maintenance - thereby enhancing reduced downtime and improved output.
It is thus no surprise that several Plants opt for a periodic Energy Audit to keep a check on the overall Energy consumption and continually achieve Energy Conservation and Energy Efficiency. Energy Audit is also a step towards green initiative as it results in achieving Energy Conservation and Energy Efficiency. At a higher level an Energy Audit can go a long way in optimizing the consumption of Nation's natural resources. At the Global level an Energy Audit can be a small step towards reducing GHG levels.

Monday, 2 April 2012

Does Energy Audit really save energy?


Energy Audit is the first step in the direction of Energy Conservation & Energy Efficiency Project. In fact Energy Audit itself may consist of 3 steps i.e. Preliminary Analysis, Walk-through Energy Audit and Detailed Energy Audit. The steps may sometimes be combined but many Auditors may skip the step or in some cases combine them. More about Energy Audit can be found in our Post on Energy Audit.

There are definite reasons that Energy Audit is not viewed as a wholesome exercise by many. The variety of reasons are at operational level as well as based on past experience by a few of the decision makers who have been involved in previous such exercises -
a. Misconception that Energy Audit in itself would save a lot of Energy.
b. Energy Audit being carried out by inexperienced and incompetent teams.
c. Recommendation implementations not taking place resulting in no conclusive outcome of Energy Audit.
d. Recommendation implementations not approved despite good savings potential.
Etc. Etc.

[Can Solar Energy Projects work across India?]

With various factors considered it is sensible to assume that an Energy Audit in itself will not save significant energy. Although Energy Audit itself does save some energy and the savings can be in the range of 4-7% achieved by changing certain operational parameters, visible areas of saving by bench-marking, ergonomic factors, enhanced awareness etc.. In case of purely Electrical Energy Audit the savings can be on the higher side of range band through the Energy Audit itself. To achieve significant saving retrofits and equipment replacements are needed as per the recommendations mentioned in the Energy Audit Report. However to obtain appropriate recommendations for operational changes, retrofits and replacements inline with the process and operational requirements is what Energy Audit is all about.

In a nutshell Energy Audit is the first crucial step in the direction of Energy Conservation & Energy Efficiency Project. If carried out in a systematic approach by experts in this field - energy saving can be expected as an outcome of the exercise. The other outcome of course is the report which lists out the recommendations. With ever-rising Energy Costs it is imperative for Industrial Plants to carry out periodic Energy Audit and implement the solution as well to achieve greater results.

Energy Conservation Project generally follows the below cycle -

Energy Audit, Energy Conservation, Energy Efficiency


[Is Solar Energy really afforable?]

Another interesting point is about measuring the savings and if savings have actually been achieved in a plant after an Energy Audit. In general a comparative analysis of energy consumption before and after audit will not reveal true results as energy consumption generally is not constant for any given plant due to seasonal changes, market demand for the product (being manufactured), internal factors etc. Specific Energy Consumption is the term which is used to denote the Energy required or Energy invested (Electricity, Coal, Diesel, Fuel etc.) in producing one unit of a product. With a setup having more than one product the SEC for each of the product needs to be calculated and will give a true indication whether an Energy Conservation and Energy Efficiency has been achieved or not.

With an aim to reduce Specific Energy Consumption an Energy Audit should not be carried out in isolation but should be looked at as part of an overall Energy Conservation Project and hence Specific Energy Consumption or Specific Power Consumption should be closely monitored as an ongoing practice to achieve good results.

Saturday, 25 February 2012

What is an Electrical Energy Audit?

Electrical Energy Audit forms an integral part of an Industrial Energy Audit. It is one of the 2 main forms of energy that is being audited and accounted for during Energy Audit. For some of the Industries which do not have Thermal Utilities an Energy Audit will only consist of Electrical Energy Audit.

Electrical Energy Audit consists of Studying, Assessing, Measuring and Analyzing electrical utilities. In a typical  Plant the electrical utilities consists of
  • Substations and / or Transformers
  • Power Distribution System (PCC, MCC)
  • Metering and Monitoring System
  • Motors
  • Blowers, ID / FD Fans
  • Compressors
  • Pumps
  • Lighting
Etc.

[Suggested Read - Does Energy Audit really Save Energy?]

Additionally Electrical Energy Audit also consists of Power Quality Analysis. Study and Analysis of Harmonics forms the main constituent of Power Quality issues. Other Power Quality issues include Sag, Swell, Voltage Fluctuations etc. During the audit sophisticated instruments such as Power Analyzer (Single phase and Three Phase), Harmonics Analyzer, Megger etc. are used by Certified Energy Auditors and Energy Managers to carry out measurements of various electrical utilities. Analysis of electrical consumption is done based on these measurements.

Further to this analysis of electricity bills, energy consumption trends, bench-marking inline with process requirement is also carried out.

[Suggested Read - What is Solar Energy (focus on Solar PV)?]

The report mainly consists of detailed analysis of the measurements, tables, pictures, graphical depictions and important calculations. Energy saving recommendations along with payback / RoI calculations are also included in the Energy Audit report. The recommendations may range from operational changes to retrofits and major changes. However based on our past experience it has been observed that Energy Audit itself may result in overall savings of 2-7% and with retrofit and other recommendations can result in savings of around 20%.

Friday, 24 February 2012

What is Energy Audit Report?

Energy Audit Report is a Comprehensive report which is submitted at the end of the Energy Audit. It generally covers up all the phases of Energy Audit including Walk-through Energy Audit, Preliminary Data Analysis, Detailed Energy Audit, Detailed Data Analysis, Savings Calculations and Recommendations.

In case of Industrial Energy Audit it is imperative to study and analyze the data in advance before carrying out actual Energy Audit by site visit.

It consists of various aspects of Energy including :

  • Non-technicals such as Energy Consumption Pattern, Billing Details, Metering and Monitoring Systems, Trends etc.
  • Technicalities about Electrical Utilities beginning with Transformers, Motors, Distribution Systems, Compressors, Blowers, Pumps, Fans etc.
  • Technicalities about Thermal Utilities including Boilers, Cooling Towers, Heat Exchangers etc.
  • Mechanical Analysis of Utilities such as Blower, Compressor, Pump - Performance, Efficiency Analysis, Process requirement etc.
  • Power Quality Study and Analysis (Harmonics, Sag, Swell, Flicker etc.)
  • Industry and Sector Bench marking.
  • Saving recommendations with appropriate Observations and Calculations.
  • Vendor List for Recommendations
Etc.

This is a general content of a Energy Audit Report. The actual content may vary from Industry to Industry. Needless to say an Energy Audit Report should contain necessary graphs, tables and calculations which support the recommendations.

[For first timers or beginners - the Energy Audit Checklist will prove beneficial.]