1. Exportinitiative Energieeffizienz www.efficiency-from-germany.info Reported by: Phạm Huy Phong Deputy Director of the Energy Conservation Center HCMC ENERGY MANAGEMENT AND MONITORING FOR BUILDING IN VIETNAM January, 2013

2. Contents  The relevant legal documents of building sector  Current energy use and potential energy savings of types of buildings  Introduction to energy management system  Typical case – efficient energy management system model (Legend Hotel and Television building)

3. 3 Decree No.102/2003/ND-CP dated September 03, 2003 of the Government on thrifty and efficient use of energy, specifies activities of thrifty and efficient use of energy in industry, in large buildings, in transportation, in daily activities and for equipment using energy. Circular No.40/2005/BXD issued energy regulations in construction. Law No.50/2010/QH12 on economical and efficient use of energy passed by the National Assembly 12 on 28/6/2010, with effect from 1/1/2011: building, authority, institution using State budget and consuming more than 500 tons of oil equivalent in one year is significant energy facility. (Article 32); Decree No. 21/2011/ND-CP of March 29, 2011, detailing the law on economical and efficient use of energy and measures for its implementation. Decree No. 73/2011/ND-CP of August 24, 2011, defining handling of administrative violations on economical and efficient use of energy. Circular No. 39/2011/TT-BCT of October 28, 2011, providing for training, grant of certificates of energy management and energy auditors. Circular No. 09/2012/TT-BCT of April 20, 2012, specifies the planning, reporting on the implementation plan on economical and efficient use of energy; implementation on energy audit (process and procedures)

4. Offices Commercial centers Hotels (Source: ECC-HCMC) Air conditioning Lighting Office equipment (computers, printers, copiers, fans,…) Elevators and water pumps Lighting system Air-conditioning system Other equipment using energy Elevator system Hot water system Lighting system Air-conditioning system Other system

5. No.SOLUTION % ENERGY SAVINGS 1 Promote awareness of user, establish energy management 5 - 10 % 2Use air conditioning with high performance10 - 15 % 3Improve lighting system3 - 5% 4 Reduce heat penetration (adjust fresh air flow, close door, improve envelop of building) 2 - 4 % 5Maintain air-conditioning equipment, lights2 - 3 % POTENTIAL ENERGY SAVINGS – OFFICES (Source: ECC-HCMC)

6. No.SOLUTION % ENERGY SAVINGS 1Improve lighting system2 - 3 % 2Improve air conditioning system5 - 10 % 3 Operate and maintain air conditioning, lighting system, … reasonably 3 - 5 % 4 Apply new technology: cold storage tank system, solar hot water system / heat pump. 3 - 5 % 5Improve envelope of building1 - 2 % 6Establish energy management system1 - 2 % POTENTIAL ENERGY SAVINGS – HOTELS, COMMERCIAL CENTERS (Source: ECC-HCMC)

7. What is energy management system?  A system includes:  Resources – financial resources, human resource and technology  Procedures/Regulations, programs in order to manage, implement activities.  Scope:  Areas related to energy consumption in company  Purpose:  Provide methods, programs clearly to implement energy savings in order to achieve planned objectives. 7 Attract the participation of personnel Have objectives to pursue Maintain effective energy savings Increase the effectiveness of other management system

8. Không có hệ thống QLNL 8 Có hệ thống QLNL Continual improveme nt Cost No energy management system With energy management system Year

9. 9 Identify areas, equipment of significant energy use and parameters need to test. Monitor and record data of energy consumption. Conduct energy audit (energy performance, energy savings solution) Establish objectives and plan Implement plan Motivate and communicate energy savings Evaluate efficiency of energy management system Energy policy Organizational structure Motivation Measurement/Monitoring Communication –Training Investment of energy Establish energy team Train to enhance awareness Define energy policy Design documentation of energy management system PROCESS FOR ESTABLISHING ENERGY MANAGEMENT SYSTEM Current assessmen t DesignDeploy

10. ISO 50001: 2011 STANDARD International standard on energy management system, issued in 6/2011 10 STANDARD ON ENERGY MANAGEMENT SYSTEM STRUCTURE: 1. Scope 2. Normative references 3. Terms and definitions 4. Energy management system requirements 4.1. General requirements 4.2. Management responsibility 4.3. Energy policy 4.4. Energy planning 4.5. Implementation and operation 4.6. Checking 4.7. Management review Annex provide guidance for using standard Countries/ScopeStandard Old energy management system DenmarkDS2403:2001 SwedenSS627750:2003 IrelandIS 393:2005 SpainUNE 216301:2007 Present energy management system UE-27 EN 16001 Effect from 07/2009 China GB / T 23331-2009 Effect from 11/2009 United State ANSI/SME 2000 Effect from 2008 From 2010 Future energy management system World ISO 50001 (from EN 16001) Issued in 06/2011

11. Primary energy consumption of 201 building whole Primary energy consumption (X10 3 GJ) Reducing by 11.2% Source ： NEDO 8.4% BEMS are installed in 80% of large buildings. Actual Result EFFECT OF ENERGY CONSERVATION OF BEMS

12. Introduction of V-BEMS in Vietnam Data Analysis Cooling load Vs. Outdoor air temp  Chiller COP Vs. Cooling load  Chiller COP Vs. Condenser Ent water temp  Chiller COP Vs. Evap Lvg temp.  Water transportation Factor  Cooling Load Vs. WTF  Condenser water temp  Secondary chilled water Temp  System power consumption  Cooling load Vs. occupancy rate Source ： Hibiya Methods of energy savings:  Optimization of the chiller number control.  Optimization of chilled water temperature.  Chilled water pump variable control.  Condenser water pump variable control.  Management of performance of chiller COP.

13. Introduction of V-BEMS in Vietnam Typical: Legend Hotel In Ho Chi Minh City: 280 rooms ContentCost Equipment20,000 Install 5,000 Total 25,000 USD Expected savings 13,000USD/ye ar Payback < 2 years Source ： Hibiya

14. TELEVISION CENTER BUILDING  Area of 20,000m 2  1 basement, 1 ground floor, 14 floors  Inaugurated in 2006 In 2011, 100% lamps are replaced to high efficiency lamps Save more than 10% of electricity consumption of cabinet air conditioner – 217 units Reduce 10% of capacity utilization of water chiller system Save 3-5% from the existing transformers Research on using solar power to supply electricity for small loads in early 2013 Deploy the project to upgrade and expand BEMS for entire building Objectives

15. Energy INSIGHT (Siemen) SIPASS (Siemen) QLBT&SC (HTV) WINCC (Siemen) Manage air conditioning systems, electrical system of daily activities, Gaz system, CO2 pollution levels, pumping system, pressure fan. Monitor electricity at loading branch Manage electrical system Measure electricity Attach additional measuring equipment MacPiu of Ducati, measure electricity in the old building. Manage lighting system (monitor & remote control). Manage entrance Statistic materials & components. Manage equipment Set maintainence schedule. Record history of equipment SOFTWARE FOR MANAGING AND MONITORING ENERGY

16. RESULTS Reduce 16% of electricity consumption in 2009 against to in 2008. The average electrical performance from 7.16 kWh/m2 (2008) to 14.34 kWh/m2 (2009) Chart of electrical consumption of building in 2008 - 2009 Month Electricity (kWh) THE RESULT

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