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estratto
Energy Performance Indicator
                         •       A kind of Key Performance Indicator
                         •       Measure of performance of a company process (energy)
                         •       General indicator
                         •       Quality indicator
                         •       Cost indicator
                         •       Service indicator
                         •       Time indicator


further information: http://www.kpilibrary.com/




   daniele.sogni@progepiter.it                                               www.progepiter.it
Energy Performance Indicator
                        3.13 - 4.4.5      Energy performance indicators
                        • periodic check of energy consumption (energy costs are
                                NOT generic costs but they must be monitored and
                                checked)
                        •       analysis about variables of energy uses (16001 energy
                                factors)
EnPI
                        •       check present uses & consumptions
                        •       calculate future consumptions
                        •       estimate consumptions (savings) of
                                design/procurement
                        •       check achievement of objectives/targets
  daniele.sogni@progepiter.it                                               www.progepiter.it
Energy Performance Indicator
Why indicators?
EnMS is a section of MS so:
•    it’s important to check global performance
•    same methodology about documents, records, review, etc.
•    it’s based on data, informations, measures, etc.
So indicators are needed!




    daniele.sogni@progepiter.it                                www.progepiter.it
Energy use

                                           CONTROLLED BY PRODUCTION
       CONTROLLED BY PHYSICAL                     PROCESSES
              PROCESSES                •   Irregular and complex relationship
•    Regular relationship between          between use and variable(s)
     use and variable(s)               •   Complex definition of energy
                                       use/variable(s)
•    Simply definition of energy use
                                       •    More important variables such as
•    Simply definition of energy
                                            production intensity, failures,
     variable(s)                       start/stop   steps, human control
•    Past & present energy data easy   •  Past and present energy data
     to find o calculate (generally)   complex to find o calculate (required
                                       monitoring)

    daniele.sogni@progepiter.it                                  www.progepiter.it
Energy use/variable relationship
                                E =   f (X, Y, Z) + j
where
E = energy consumption, either electricity, nonelectric energy, or
total site energy (TSE,
          the total measure of fuel, thermal and electricity)
Y =       production, measured by physical production
X = systematic economic decision variables (i.e., labor hours
worked, materials
          processed, plant capacity, or utilization rates)
Z =       systematic external factors (i.e., heating and cooling DD)
j =       error
  daniele.sogni@progepiter.it                                     www.progepiter.it
Energy use/variable relationship




  daniele.sogni@progepiter.it      www.progepiter.it
Energy use/variable relationship
                                                   Macchina 1

       30.000                                                                                          6.000

       25.000                                                                                          5.000

       20.000                                                                                          4.000




                                                                                                               n. colli
KWhe




       15.000                                                                                          3.000

       10.000                                                                                          2.000

        5.000                                                                                          1.000

           0                                                                                           0
          2008/01 2008/03 2008/05 2008/07 2008/09 2008/11 2009/01 2009/03 2009/05 2009/07 2009/10 2009/12

                                                     M1      n. colli




          daniele.sogni@progepiter.it                                                                                     www.progepiter.it
Calculation of EnPI
Simple ratio



                                1 information




  daniele.sogni@progepiter.it                   www.progepiter.it
Calculation of EnPI

Straight-line model
Each consumption stream could
have a target performance
characteristic.
Organisation needs to answer this
question:
“How much energy have we used,
compared with what we would
have expected in the absence of
energy-saving measures?”



  daniele.sogni@progepiter.it       www.progepiter.it
estratto
Evaluation of EnPI
Please verify your EnPI!




   daniele.sogni@progepiter.it       www.progepiter.it

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Energy Performance Indicators En Pi

  • 1. estratto Energy Performance Indicator • A kind of Key Performance Indicator • Measure of performance of a company process (energy) • General indicator • Quality indicator • Cost indicator • Service indicator • Time indicator further information: http://www.kpilibrary.com/ daniele.sogni@progepiter.it www.progepiter.it
  • 2. Energy Performance Indicator 3.13 - 4.4.5 Energy performance indicators • periodic check of energy consumption (energy costs are NOT generic costs but they must be monitored and checked) • analysis about variables of energy uses (16001 energy factors) EnPI • check present uses & consumptions • calculate future consumptions • estimate consumptions (savings) of design/procurement • check achievement of objectives/targets daniele.sogni@progepiter.it www.progepiter.it
  • 3. Energy Performance Indicator Why indicators? EnMS is a section of MS so: • it’s important to check global performance • same methodology about documents, records, review, etc. • it’s based on data, informations, measures, etc. So indicators are needed! daniele.sogni@progepiter.it www.progepiter.it
  • 4. Energy use CONTROLLED BY PRODUCTION CONTROLLED BY PHYSICAL PROCESSES PROCESSES • Irregular and complex relationship • Regular relationship between between use and variable(s) use and variable(s) • Complex definition of energy use/variable(s) • Simply definition of energy use • More important variables such as • Simply definition of energy production intensity, failures, variable(s) start/stop steps, human control • Past & present energy data easy • Past and present energy data to find o calculate (generally) complex to find o calculate (required monitoring) daniele.sogni@progepiter.it www.progepiter.it
  • 5. Energy use/variable relationship E = f (X, Y, Z) + j where E = energy consumption, either electricity, nonelectric energy, or total site energy (TSE, the total measure of fuel, thermal and electricity) Y = production, measured by physical production X = systematic economic decision variables (i.e., labor hours worked, materials processed, plant capacity, or utilization rates) Z = systematic external factors (i.e., heating and cooling DD) j = error daniele.sogni@progepiter.it www.progepiter.it
  • 6. Energy use/variable relationship daniele.sogni@progepiter.it www.progepiter.it
  • 7. Energy use/variable relationship Macchina 1 30.000 6.000 25.000 5.000 20.000 4.000 n. colli KWhe 15.000 3.000 10.000 2.000 5.000 1.000 0 0 2008/01 2008/03 2008/05 2008/07 2008/09 2008/11 2009/01 2009/03 2009/05 2009/07 2009/10 2009/12 M1 n. colli daniele.sogni@progepiter.it www.progepiter.it
  • 8. Calculation of EnPI Simple ratio 1 information daniele.sogni@progepiter.it www.progepiter.it
  • 9. Calculation of EnPI Straight-line model Each consumption stream could have a target performance characteristic. Organisation needs to answer this question: “How much energy have we used, compared with what we would have expected in the absence of energy-saving measures?” daniele.sogni@progepiter.it www.progepiter.it
  • 10. estratto Evaluation of EnPI Please verify your EnPI! daniele.sogni@progepiter.it www.progepiter.it