Workshop for ESCOs and Energy Consultants RETScreen Training

1. Workshop for ESCOs and Energy ConsultantsRETScreenTraining 22 Jan 2013 Luis Hinojosa

2. Your Intructors • Luis Hinojosa • Mechanical Engineer, MSc in Building Services Engineering, CEM (AEE), CMVP (EVO-AEE), CRU, MASHRAE, MCIBSE • Email: luis.hinojosa@poch.cl

3. What about yourselves? Please introduce yourselves… Please tell us what you expect from this training

4. Agenda - RETScreenTraining Morning Session: 14:30 to 16:30 • Unit 1: Energy Efficiency (2 hours) • General conceptsand examples. • Coffee Break: 11:00 – 11:15 • Unit 2: Solar Energy (2 hours) • General concepts and examples. • Lunch: 13:15 to 14:30 Afternoon Session: 14:30 to 16:30 • Unit 3: Cogeneration and others (2 hours) • General concepts and examples.

5. RETScreen Training Introduction to RETSCreen Energy Efficiency Solar Energy Cogeneration Retscreen limitations

6. Introduction to RETSCreen

7. Introduction to RETSCreen Method 1 Method 2 1 Step 5 Steps

8. Introduction to RETSCreen • When going from Method 1 to Method 2: • Data can be lost • Some errors may occur • Be careful

9. RETScreen Training Introduction to RETSCreen Energy Efficiency Solar Energy Cogeneration Retscreen limitations

10. Energy Efficiency

11. Energy Efficiency Fuels & schedules

12. Energy Efficiency Facility characteristics

13. Energy Efficiency Summary

14. Energy Efficiency Emission & Financial Analysis

15. Energy Efficiency Emission & Financial Analysis

16. Energy Efficiency Case Study 1: Lighting & A/C Example Case Study 2: Audit Report for Bailey Terrelonge Allen Kingston’s Office Case Study 3: Motors, Pumps and Fans

17. RETScreen Training Introduction to RETSCreen Energy Efficiency Solar Energy Cogeneration Retscreen limitations

18. Solar Energy - PV

19. Solar Energy Case Study 4: PV Example Case Study 5: Audit Report for Ruthven Medical Centre

20. Solar Energy - Thermal

21. Solar Energy - Thermal Case Study 6: Solar Thermal for Sunrise Club Hotel

22. RETScreen Training Introduction to RETSCreen Energy Efficiency Solar Energy Cogeneration Retscreen limitations

23. Cogeneration

24. Cogeneration Case Study 7: Cogeneration System in Chiloe - Chile

25. RETScreen Training Introduction to RETSCreen Energy Efficiency Solar Energy Cogeneration Retscreen limitations

26. Retscreen limitations • It is pre-feasibility tool • Basic energy models • Limited level of accuracy • It is not a simulation tool • Use monthly data, for example for the climate • It requires Excel and Windows

27. Retscreen limitations • Building Model • Simple model • Does not include latent heat for refrigeration charges • It does not allow simultaneous heating and cooling loads • The user specifies the temperature for changing between cooling and heating • It is not possible to enter the thermal mass of a building • Sensible/latent heat gains can not be entered • It is not possible to specify which part of the day the building is ocuppied

28. Retscreen limitations • Peak Power Demand and Power Factor • Model does not calculate reduction en peak power demands • The user can estimate them and include the savings within the financial analysis. • The power factor savings are not calculated • The user can estimate them and include the savings within the financial analysis.

29. Retscreen limitations • Some Black Box models • The EE models are not well documented yet • There are excellent books for cogeneration and renewable energy projects. • Some parameters and hypothesis taken by the software are not visible for the user • For example, how the EE measures affects the cooling and heating loads (crossed effects).

30. Retscreen limitations • Databases of products • At present, the tool offers an excellent product and equipment database for RE projects. • In the case of EE, the databases are limited • Lighting, compressed air, motors, heat recovery, etc.