Sarawak Energy s New Low Energy HQ And first green building in Sarawak

Transcription

1 Sarawak Energy s New Low Energy HQ And first green building in Sarawak Presented on behalf of the design team by: Gregers Reimann, MD IEN Consultants 1 October 2012 [Slides by IEN Consultants and Jurubina Unireka]

2 Contents Green Building Index (GBI) Design features of Sarawak Energy HQ Questions and answers Launch of Sarawak Energy HQ, 18 September 2012

3 1 st green building in Sarawak

4 Green Building Index (GBI) for Sarawak Energy HQ Max. points Target score 62 points

5 Energy supply Energy Efficiency Think of buildings like a bucket of water Energy efficiency Energy wastage ( plug the holes )

6 Sarawak Energy HQ: Very Energy Efficient ( plugging the holes ) Building Energy Intensity (kwh/m2 year) 0 Former SEB HQ New SEB HQ NB. Approximate figure. Energy consumption of Scada subtracted (assumed to be 1/3 of the building s energy bill) NB. As per measured data April - July 2012

7 Savings for Sarawak Energy HQ Former SEB HQ Building Energy Intensity (kwh/m2 year) ANNUAL SAVINGS: o 13,000 MWh o 11,000 ton CO 2 = 5,500 cars off the road New SEB HQ NB. Approximate figure. Energy consumption of Scada subtracted (assumed to be 1/3 of the building s energy bill) NB. As per measured data April - July 2012

8 Cumulative percentile Energy Efficiency of Buildings in Malaysia and Singapore Sarawak Energy (2012) 80 kwh/m 2 year 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% Energy Efficiency Index (kwh/m2/year) Malaysia (41 office buildings) Singapore (95 office buildings) Typical Cross Section Sarawak Energy is off the scale but in the right end of the scale, i.e. being highly energy efficient

9 Operational Costs of a Building Cost per m2 Other Energy Rental Salary Studies have proven that a good indoor environment leads to: o Less sick leave o Higher well-being o More productive employees o Students score higher on exams o Shops have higher sales o Hospitals can discharge patients faster

10 The New Sarawak Energy HQ And the team that made it happen Energy Efficiency consultants: IEN Consultants Sdn. Bhd. Commissioning specialist: Pureaire Sdn Bhd

11 SITE & CONTEXT BORNEO CONVENTION CENTRE KUCHING SEB HQ

12 PASSIVE ARCHITECTURE NORTH & SOUTH ORIENTATION

13 PASSIVE ARCHITECTURE Free cooling of atrium from spill-over air-con from offices o o On ground floor, use of doubledoor air locks to keep cool air inside atrium Channel cool AHU condensate water to atrium water features THERMAL COMFORT & NATURAL VENTILATION

14 AHU Condensate Water Cools Atrium PLAY VIDEO Video link:

15 NORTH

16 DAYLIGHTING

17 ATRIUM DAYLIGHTING

18 DAYLIGHTING NATURAL LIGHTING Atrium Skylight Roof Fixing Catwalk Atrium Typical Office Retractable Blind Motorised Blind

19 Daylighting along Facades (reflect daylight onto ceiling and deeper into the offices)

20 Daylighting (controls for the electric light) Lighting control: Automatic off. Manual on.

21 Lighting Levels No need to switch on lights automatically: Save energy

22 Ensure Daylight & View in Offices (Survey among 46 building professionals in Singapore) MOST IMPORTANT USES OF A WINDOW 100% 80% 60% 40% 1st priority 2nd priority 3rd priority 20% 0% view ventilation daylight connection with outside protection from climate other

23 VIEW TO THE OUTSIDE REVISED TYPICAL OFFICE LAYOUT (900mm GLASS AT MANAGER S ROOM)

24 VIEW TO THE OUTSIDE Most SEB workspaces have view to the outside and high connectivity with fellow employees, which is part of SEB s transformation process

25 VIEWS & CONNECTIVITY in the office

26 Daylight and Rain Bows(!) in Car Park PLAY VIDEO Video link:

27 ENERGY BREAK-DOWN (computer simulation) Simulated energy consumption = 98.3 kwh/m 2 /year (Based on 1500 staff, GFA = 39893m 2 excluding car parks, Server Room & SCADA) Current energy consumption = 80 kwh/m 2 /year (Based on 960 staff)

28 Building Management System: Consumption vs. Production (solar)

29 Building Management System: Key Energy Consumption Data (1 week)

30 GOOD INDOOR AIR QUALITY General Office Area Library Reading Area CEO s Room Chairman s Room Lounge / Reading Area Good air quality for environmentally friendly products

31 ENERGY EFFICIENCY COOLING SYSTEM & RAINWATER HARVESTING Air Handling Unit Air Cooled Chiller Chilled Water Pump Cooling Tower Domestic Tank Rain Harvesting Tank (10,000 gallons)

32 Grid-Connected Solar Photovoltaic Panels (covers approx. 2% of the building s energy consumption)

33 WATER EFFICIENCY & RENEWABLE ENERGY Photovoltaic Panels Building Integrated Photovoltaics Panels (BIPV) Low flow rate tap and water efficient flushing (50% savings)

34 GREEN VEHICLE CAR PARKING BAY VIP Sheltered Carpark Sub-Basement Emerging tend for electric vehicles. Here 100% electric Nissan Leaf and 100% electric Yike Bike. IEN Office, Kuala Lumpur, August 2012 Electrical vehicles could be an interesting new and green business opportunity for SEB

35 Final Slide Sarawak Energy: Power to Grow - something to Show! 1 st Green Office Building in Sarawak

36 Thank you Gregers Reimann managing director hp: web: