Exportinitiative Energieeffizienz ENERGY MANAGEMENT AND MONITORING FOR BUILDING

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

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)

l l l l 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/QH 12 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 3 energy; implementation on energy audit (process and procedures)

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

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

POTENTIAL ENERGY SAVINGS – HOTELS, COMMERCIAL CENTERS No. SOLUTION % ENERGY SAVINGS 1 Improve lighting system 2 -3% 2 Improve air conditioning system 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% 5 Improve envelope of building 1 -2% 6 Establish energy management system 1 -2% 5 - 10 % (Source: ECC-HCMC)

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

Continual improvement Cost Year Không có energy management system No hệ thống QLNL With Có hệ thống QLNL energy management system 8

PROCESS FOR ESTABLISHING ENERGY MANAGEMENT SYSTEM Current assessment • • • Energy policy Organizational structure Motivation Measurement/Monitoring Communication –Training Investment of energy Design • • Establish energy team Train to enhance awareness Define energy policy Design documentation of energy management system Deploy • • 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

STANDARD ON ENERGY MANAGEMENT SYSTEM ISO 50001: 2011 STANDARD International standard on energy management system, issued in 6/2011 Countries/Scope Sweden SS 627750: 2003 IS 393: 2005 UNE 216301: 2007 UE-27 EN 16001 Effect from 07/2009 China GB / T 23331 -2009 Effect from 11/2009 United State ANSI/SME 2000 Future energy management system DS 2403: 2001 Spain Present energy management system Denmark Ireland Old energy management system Standard Effect from 2008 From 2010 World ISO 50001 (from EN 16001) Issued in 06/2011 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 10

EFFECT OF ENERGY CONSERVATION OF BEMS Primary energy consumption (X 103 GJ) Primary energy consumption of 201 building whole 8. 4% Reducing by 11. 2% Source： NEDO Actual Result BEMS are installed in 80% of large buildings.

Introduction of V-BEMS in Vietnam Methods of energy savings: ØOptimization of the chiller number control. ØOptimization of chilled water temperature. ØChilled water pump variable control. ØCondenser water pump variable control. ØManagement of performance of chiller COP. Data Analysis Cooling load Vs. Outdoor air temp ØChiller COP Vs. Cooling load ØChiller COP Vs. Condenser Ent water temp ØChiller COP Vs. Evap Lvg temp. ØWater transportation Factor ØCooling Load Vs. WTF ØCondenser water temp ØSecondary chilled water Temp ØSystem power consumption ØCooling load Vs. occupancy rate Source： Hibiya

Introduction of V-BEMS in Vietnam Typical: Legend Hotel In Ho Chi Minh City: 280 rooms Content Cost Equipment 20, 000 Install Total 5, 000 Expected savings 13, 000 USD/year Payback < 2 years 25, 000 USD Source： Hibiya

TELEVISION CENTER BUILDING Objectives Area of 20, 000 m 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

SOFTWARE FOR MANAGING AND MONITORING ENERGY • • Manage electrical system Measure electricity Attach additional measuring equipment Mac. Piu of Ducati, measure electricity in the old building. WINCC (Siemen) INSIGHT (Siemen) Energy • Manage air conditioning systems, electrical system of daily activities, Gaz system, CO 2 pollution levels, pumping system, pressure fan. Monitor electricity at loading branch SIPASS (Siemen) • • • Statistic materials & components. Manage equipment Set maintainence schedule. Record history of equipment • QLBT&SC (HTV) Manage lighting system (monitor & remote control). Manage entrance

RESULTS Reduce 16% of electricity consumption in 2009 against to in 2008. The average electrical performance from 7. 16 k. Wh/m 2 (2008) to 14. 34 k. Wh/m 2 (2009) THE RESULT Electricity (k. Wh) Chart of electrical consumption of building in 2008 - 2009 Month

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