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Energy Efficiency

Methodology

We propose the following methodology for conducting energy audits:


Pre-diagnosis


The pre-diagnosis consists of gathering data regarding consumption and equipment followed by an initial visit to the site designed to detect early saving opportunities.


Data Collection and measurement


The measurements to be taken on the premises will be defined based on the pre-diagnosis.


To accomplish this task and in agreement with the client, we outline a schedule of measurements to be taken and the security standards to be met by our staff (insulated gloves, goggles, insulating mats for electrical measurements, etc.).


We study data regarding production or tasks, in order to cross consumption with levels of activity within the organization. In addition to the data on energy consumption, we also review the equipment or systems that explain such use, as well as how long they are in operation and what they are used for.

 

Analysis and processing of the information gathered


* Energy Accounting


Energy accounting is based on historical data and is presented as tables and graphs for better understanding.


* Energy Balance


The preparation of an Energy Balance is extremely useful for a better diagnosis and confers reliability to the recommendations resulting from the study.


The information gathered, together with records and measurements, is used to make a general energy balance of the site, both related to the source as well as to the use of energy.


* Energy Index and Benchmarking


Specific energy indices for the facilities are evaluated. For example kWh per ton produced, or Kcal/lt processed or kWh/person, etc.


If the information is available to the public, these ratios are contrasted with public values for benchmarking to detect the potential for improvement.


* Baseline for measuring future energy savings


Correlations are made between the energy consumed and the parameters affecting its use - employees working, production, room temperature (degrees - month), etc. - in order to achieve a curve to establish a baseline showing the present use of energy.


The International Measurement and Verification Protocol guidelines for savings are followed. The objective of this baseline is to create a systematic method to scientifically assess future energy performance at the facilities. Thus, the energy savings can be evaluated independently of the normal changes that occur, such as level of occupation at the site (increase or decrease of personnel), variations in production, etc.

* Energy Diagnosis and proposals for Energy Conservation Measures (ECM)


The energy saving opportunities for all services and operations performed at the site are analyzed based on the above information.

Each ECM is accompanied by an estimate of the savings expected, the investment required and an investment project including its indices (IRR, NPV, Payback Period).


* Final Report


A final report is drawn up explaining the findings in the diagnosis and their recommendations along with an economic analysis of the costs estimated for the improvements suggested and their future economic impact based on the savings achieved once they are implemented.


The report includes formulation of a project for execution or for presentation to available lines of credit. This final report has a basic format: Executive Summary, Introduction and Methodology, Diagnosis, Conclusions, Recommendations and Attachments.

Complementary Activities

 

In some circumstances the following additional activities may be outlined:

Training Workshop for Energy users


Following the consultancy, workshops can be held to present the results and provide knowledge about the opportunities that exist for saving energy through improvements in energy efficiency, applicable technologies and instruments proposed to remove the barriers for implementation.

Creation of an Internal Energy Conservation Committee


An Internal Energy Conservation Committee is created to sustain the results of the consultancy over time and to achieve on-going improvement.
Creating this type of internal organization within the client’s company will allow: scientific assessment of its energy performance; implementation of short, medium and long-term plans to rationalize the use of energy; follow-up and execution of these plans in accordance with the objectives; and measurement and verification of the savings achieved in the long term.