1. © INTECHNICA 2008 1 Energy efficiency assessment Systematic Approach to Green Production Energy Efficiency Assessment Supported by: The sole responsibility for the content of this presentation lies with the authors. It does not necessarily reflect the opinion of the European Communities. The European Commission is not responsible for any use that may be made of the information contained therein.

2. © INTECHNICA 2008 2 EMS Energy Management - Benefit Basis for information Cost saving Risk reduction Chances for improvement Motivation of employees Strategic planning Energy efficiency assessment

3. © INTECHNICA 2008 3 systematic data collection, on site inspection plausibility, ranking, benchmarking obstacles, responsibilities realise and control measures Methodology Energy efficiency assessment

4. © INTECHNICA 2008 4 Methodology Step 4: Measures and Program Development of measures Control of measures Step 2: Evaluation of individual status Key indicators Benchmark Best practice examples Comparison actual state to target state Step 3: Development of an energy concept Calculations Choice of technology Return on invest Step 1: Analysis of actual status data flow charts meters + process flow on-site inspection Energy efficiency assessment

5. © INTECHNICA 2008 5 CurrentHeat / ColdSource of energy Motors Refrigeration devices Technical air climate equipments Conveyors Pumps Control systems Lighting Electrical-Heating Compressed air Machines Data processing equipment Heating Technical air climate equipments Process heat Hot water (sanitarian, products, process) Absorption- refrigerating system Waste heat Steam Cooling water Gas Oil Current Sun Wind Geothermal energy Water power Biomass Waste heat District heating Step 1 – Analyse data Energy efficiency assessment

6. © INTECHNICA 2008 6 flow charts for processes like cold water, hot water, waste water, compressed air, steam etc. on site inspection: - sketch ways of flow, build flow chart - name and include sub-processes - consider reflux pipes (condensate collection) - mark relevant devices in plan of site - include record meters in flow chart - illustrate the coherences (use colors, simplify) - don't forget components and plants in the area beyond production (e.g. cellars, roofs, sheds) Step 1 – Analyse Data Energy efficiency assessment

7. © INTECHNICA 2008 7 - Collection / investigation of consumption data - Collection of equipment data - Collection of production data Step 1 - On-Site-Inspection Energy efficiency assessment

8. © INTECHNICA 2008 8 Step 2 - Data Evaluation ► data plausible? ► key indicators accessible ? ► best practice examples known? ► ranking & benchmarking information? Energy efficiency assessment

9. © INTECHNICA 2008 9 Step 3 - Development of an energy concept  lack of technical knowledge  incomplete market review (what‘s offered, new technologies, etc.)  high costs – low benefit on the saved energy – long period of amortization  lack of capital / needs for other investment  lack of time / unavailable responsible employees  limited information by decision makers  energy costs = unassigned fixed costs (= without personnel responsibility) Typical Barriers From Inside Energy efficiency assessment

10. © INTECHNICA 2008 10 Step 4 – Implement Concept Definition der Unternehmensziele im Bereich Energie Schritt 1 Schritt 2 Schritt 3 Schritt 4 Change company‘s vision on the issues of energy Upgrade energy management system Motivate and sensitize the employees Monitoring and controlling of energy management system Course Of Action Energy efficiency assessment

11. © INTECHNICA 2008 11 Building Architecture Concepts Materials Metering / indicators Heating / Cooling equipment Lighting systems Status of building Brief Questionnaire for Energy Efficiency Assessment

12. © INTECHNICA 2008 12 Running the Building Lighting Equipment Heating Cooling Ventilation Brief Questionnaire for Energy Efficiency Assessment

13. © INTECHNICA 2008 13 Energy and Office Operation General Kitchen Office equipment Canteen Brief Questionnaire for Energy Efficiency Assessment

14. © INTECHNICA 2008 14 Energy and Production Steam Compressed air Process water Electric drives Machines Processes Brief Questionnaire for Energy Efficiency Assessment

15. © INTECHNICA 2008 15 Energy and Production Steam - Is steam system properly insulated and regularly maintained ? - Is a condensate water collection system installed ? Compressed air - Is compressed air system regularly maintained (leakage control) ? - Is pressure of compressed air set as low as possible ? - Is heat loss from compressors recovered by heat exchange ? Process water - Are hot water surfaces covered to prevent heat losses? - Are hot water pipes properly insulated? - Are hot water pipes regularly maintained? Electric drives - Are motors, fans and other electric equipment energy efficient (EFF1 class or energy star label)? - Are motors, fans etc. speed controlled? - Is power management for electricity installed (minimise peak consumption)? - Is a reactive current compensation system in place ? Brief Questionnaire for Energy Efficiency Assessment