1. Too Expensive ! Too much pollution ! Investments proposals in order to reduce our energy consumption

2. LAGAS Nicolas LAMY Jérôme NGUYEN Tu I. When energy flies away …  Today our energy comes mainly from petrol  Petrol costs more and more  Petrol is pollution We must react !!!

3. LAGAS Nicolas LAMY Jérôme NGUYEN Tu I. When energy flies away … Main energy sinks in our buildings  Lights  Machines  Computers  Heating during winter  Cooling during summer  Bad insulation of walls and roofs

4. LAGAS Nicolas LAMY Jérôme NGUYEN Tu I. When energy flies away … How to reduce the bill?  Change the employees customs  Change our machines  Change our sources of energy

5. LAGAS Nicolas LAMY Jérôme NGUYEN Tu II. Alternative energies Solar energy  Solar power –provide electricity to light on the factory or power on the motors  Solar thermal –Provide hot water

6. LAGAS Nicolas LAMY Jérôme NGUYEN Tu II. Alternative energies Advantages and Disadvantages of Solar power  Pro –Unlimited and free –Clean energy –Usable everywhere in the world –Government helps

7. LAGAS Nicolas LAMY Jérôme NGUYEN Tu II. Alternative energies Advantages and Disadvantages of Solar power  Cons –Limited efficiency of the solar panel –The cost of the installation –Depend on the weather –Not available anytime in the day –Energy storage problems  battery  6 year lifetime  pollution

8. LAGAS Nicolas LAMY Jérôme NGUYEN Tu II. Alternative energies Geothermal energy  High and middle energy –Temperature > 90°C –Produce electricity  Low and ultralow energy –Temperature < 90°C –Heating systems

9. LAGAS Nicolas LAMY Jérôme NGUYEN Tu II. Alternative energies Advantages and Disadvantages of Geothermal  Pro –Economical power –No stock needed –Easy to maintain –Ecological : save 60% of the heating bill –Government helps

10. LAGAS Nicolas LAMY Jérôme NGUYEN Tu II. Alternative energies Advantages and Disadvantages of Geothermal  Cons –Contain gas that could damage the ozone layer –Noise of the compressor –Cost of the installation

11. LAGAS Nicolas LAMY Jérôme NGUYEN Tu III. A new project for a new start Some figures  10 kW consumed by computers  10 kW consumed for lighting  100 kW consumed by the heating/cooling system  Whole consumption : 120 kW  50 tons of CO2 rejected each year !  Expenses : 20000 € each year !

12. LAGAS Nicolas LAMY Jérôme NGUYEN Tu III. A new project for a new start I.Swap the heating system by a geothermal power unit A lot of free space in front of our firm Compacity of the power unit Cost : 30.000 €

13. LAGAS Nicolas LAMY Jérôme NGUYEN Tu III. A new project for a new start II.Produce electricity with some solar panels Typical production of solar energy : 400 kW/year/m²  10 m² needed Lack : bought Surplus : sold Cost : 50.000 €

14. LAGAS Nicolas LAMY Jérôme NGUYEN Tu III. A new project for a new start III.How does it work ? In summer : as a cooling system

15. LAGAS Nicolas LAMY Jérôme NGUYEN Tu III. A new project for a new start III.How does it work ? In summer : as a cooling system In winter : As a heating system Annual consumption : 0 W !!!

16. LAGAS Nicolas LAMY Jérôme NGUYEN Tu III. A new project for a new start IV.Is it interesting ? YES !

17. LAGAS Nicolas LAMY Jérôme NGUYEN Tu IV.Going even further…. Why not creating a common power unit ? Reduction of the investments Higher efficiency Being a model for other firms Improve our public image Saving more money !

18. LAGAS Nicolas LAMY Jérôme NGUYEN Tu Do you want to save money ? Do you want to save the world ? Adopt renewable energies!