preparation of audit - startseite · preparation of audit ... special requirements of iso 50001...

www.efficiency-from-germany.info

Preparation of Audit

Dipl.-Ing. Thomas FrankEnvidatec GmbH

● Energy Profile, Energy Baseline, EnPI

● Guidelines for Auditing

2 – 12

13 – 22

AGENDA


Energy Management System ISO 50001

Special Requirements:

Energy ProfileEnergy Baseline

Energy Performance Indicators (EnPIs)

Special Requirements of ISO 50001

Energy Profile (1)

The purpose of developing an energy profile of the organization is to understand the areas of significant energy consumption

I.e. the buildings, equipment and processes which account for the greatest energy use or which offer the most potential for energy savings

The identification of the energy profile is critical in understanding where energy is used within the organization and forms the basis for prioritizing the efforts to reduce energy consumption.

The organization that intends to implement an energy management system should start by establishing its current position.


Energy Profile (2)

a) Analyze energy use based on measurement and other data

1. How much energy the organization consumes and its trends, changes, anomalies, etc.

2. Estimate how much energy will be consumed in the coming period, typically the next financial budget period.

3. Examine where energy is currently being sourced which will typically be a local utility company and examine other potential sources including e.g. internal waste heat.

b) Based on energy use analyses, identify the areas of significant energy use

1. Where the energy is being used, i.e. what are the significant consumers?

2. What is driving the energy use? This is often difficult to determine but is very important.

3. Which people have significant impact on energy use and identifies their relevant training needs.


Energy Profile (3)

c) Identify and prioritize opportunities for improving energy performance, including use of renewable or alternative energy sources, where applicable.

1. Identify energy reduction opportunities by a variety of means, e.g. analysis of the data from (a) and (b), energy audits and studies, examination of EnPIs, etc.

2. Prioritize the known opportunities based on the organizations normal work and investment prioritization criteria.

3. It may be relevant to examine the technical and financial costs and benefits of renewable or alternative energy sources such as biomass, solar, wind, co-generation, etc.

The organisation's energy use will change on an ongoing basis due to plant changes such as new buildings or equipment, energy performance changes, changes of personnel, etc. Organizations will typically update the energy profile on a regular basis, e.g. annually or when a significant change occurs.


Energy Baseline

The energy baseline shall be established using the information in the initial energy profile considering a minimum of 12 months of data (cause of seasonal variations)

Significant organizational changes that affect the validity of the EnPIs may be reasons to adjust the baseline. These may include changes in:

● product mix● production levels● operating schedule● facility infrastructure● equipment and systems● new energy resources● legal or regulatory requirements

The EnPIs and baseline should be generated using an as long period of relevant data as possible


Energy Performance Indicators (EnPI)

EnPIs are a quantitative index of energy performance as defined by the organization. The concept of an EnPI can be used to compare organizational performance at different points in time.

● The organization shall identify EnPIs to be used to determine energy performance and to subsequently evaluate progress towards objectives and targets.

● The method(s) used for definition and update of the EnPIs shall be recorded.● EnPIs shall be reviewed and compared to the energy baseline on a regular basis.

Methods for defining EnPI will vary depending on the organization’s operations and complexity. EnPI should be easy to understand which will aid its usefulness for sharing information and improving motivation to make improvements.


Energy Performance Indicators (EnPI)

Examples and Notes:

● Comparison of annual energy use with targeted use.● Energy consumption divided by production● Comparison of normalized energy consumption with production amount, actual seasonal

temperature, number of customers, length of service time, and so on (Benchmarking). Methods for normalization may vary such as linear compensation, or a theoretical calculation.

● When the organization chooses EnPIs whose variables are not being measured, a measurement plan should be developed and implemented.

● EnPIs can be made relevant for different functions and levels in the organization. E.g. for top management, EnPIs are typically translated to relate cost impacts and to support strategic goals.

● Trends in the EnPI should demonstrate continual improvement of the energy performance of the organization.

Usage of EnPI

● Evaluation of efficiency of measurements

● Reference point for weaknesses, e.g. significant changes in consumption

● Verification of success of taken measurements

● Verification of success of investments

● Comparison with different companies of the same branch


EnPI

Necessary input parameters

● Output variables are the amount of energy used - if necessary structured by energy source for each process

● Reference values such as units produced or specific variables such as m² are useful to determine the company's energy efficiency

● Identification of further influencing factors e.g. outdoor temperature, humidity, altitude ...


EnPI

Improper input variables

● Energy costs counterproductive for efficiency evaluation

● Absolute energy consumption usually not suitable as it depends on too many factors (see necessary input parameters)

● calculated (estimated) energy consumption, as most unequal to real consumption


FacilityProcess

Electricity

Heating

Raw materials

Semi-finished products

Fuels

Additives

Dissipated energies

Emissions

Products

By-products*

Waste materials

*technological related production

EnPI



Energy Management System ISO 50001

Guidelines for Auditing

Audits are used for the verification if systems, processes and products comply with the requirements of the standard

According to that, an audit is a management tool to meet the concerted targets

An audit is a weak-point analysis

assesses the current state

questions processes and operating cycles

offers the opportunity to determine improvement measures

can create confidence

Guidelines for Auditing EnMS - Definition

Initiate an audit

Name a leader of the audit team

Define the audit targets, the audit scope and the audit criteria

Detect he audit's feasibility

Select the audit team; naming the members

Vote with the OE that shall be audited; scheduling the inductory conference

Guidelines for Auditing EnMS – Audit Tasks

Audit tasks on location Inductory conference with the manager of the area that shall be audited

Conduction of the inductory conference

Evaluation of scope, audit scheme and schedule

Communication control during the audit No monologue!

Roles and responsibilities; motivation to take part

Collection and assessment of information

Comparison of the standard's requirements with the content of the OE's documents

Making audit statements considering the available capital

Drawing audit conclusions

Conduction of the concluding discussion


Audit tasks on location / site inspection

Preparations

Define energy and environmental relevant areas

Write a list of sites that shall be inspected

Focus on key aspects (major energy users, measuring points, documents, structural alterations, expansions, …)

Draw boundaries (OE, production line, processes, …)

Mark site plans



Execution Inspect all relevant areas

Control energy users with high energy demand

Test measuring systems (plausibility check)

Watch energy consumption considering the work flow

Detect waste of energy

Examine alternative energy supply

Documentation (with pictures where necessary)



Analysis

Add notes to pictures

Evaluation of processes

Description of internal and external interfaces

Prove consumptions with key figures

Analyze energy reports

Analyze major consumers


Following points must be analyzed, considered and determined when evaluating and post-processing:

Nonconformities (classify where necessary)

Recommendations (classify where necessary)

Audit report (records)

Action planning

Suggestions for the implementation

− Responsibilities

− Deadlines

− Resources

− who, what, when, how …

Guidelines for Auditing EnMS – Post-Processing

Requirements for the audit report

The essential contents are:

− Aim of the audit

− Scope of the audit (organizational and functional units; processes; period of time)

− Audit initiator

− Lead auditor and members of the audit team

− Deadlines and implementation sites

− Audit criteria

− Audit findings

− Audit conclusions


Requirements for the audit report

Additionally, the following points may be included:− Audit scheme

− List of the representatives of the audited organization

− Summary of the auditing process (unsecurities, constraints, problems, ...)

− confirmation, that the audit targets within the scope where achieved in compliance with the audit scheme

− Not covered areas, although they are within the scope

− Unsolved disagreements between the involved parties

− Recommendations for improvements

− Concerted plans for follo-up actions (aims)

− Confidentiality agreement



Questions?

Suggestions?


Thank you for your attention


Envidatec GmbH

Veritaskai 2

D-21079 Hamburg

Phone.: +49 (0) 40 / 300 857 – 0

Fax: +49 (0) 40 / 300 857 – 70

Email: [email protected]

Internet: www.envidatec.com

Internet: www.ISO50001.de

Internet: www.JEVis.de

mailto:[email protected]

http://www.envidatec.com/

http://www.ISO50001.de/

http://www.JEVis.de/

preparation of audit - startseite · preparation of audit ... special requirements of iso 50001...

Documents