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2 Sustainable Development Environment Economy Culture Liveable Viable Equitable Sustainable.

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Presentation on theme: "2 Sustainable Development Environment Economy Culture Liveable Viable Equitable Sustainable."— Presentation transcript:

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2 2 Sustainable Development Environment Economy Culture Liveable Viable Equitable Sustainable

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5 The Brando Hotel Conservation Tetiaroa Eco-Station Research facility Staff Village Technical area Spa Gardens Residences Western Beach Villas Southern Beach Villas

6 Sustainability Goals for The Brando:  Net Zero Energy Use  Site Water Balance  Materials : Local, Recycled,Renewable  Carbon Neutral Transportation  Market Recognition (Validation - LEED)

7 Net Zero Energy Goals: Site Energy Net Zero: All energy consumed at The Brando is generated at The Brando Source Energy Net Zero: All energy consumed at The Brando is generated from renewable energy

8 Water Balance Goals: Low Energy Water Independence Limit reliance on desalination Protect the Water Lens Conservative drawdown Prevent Contamination

9 Material Goals: Utilize local materials Utilize recycled content materials Source wood sustainably Use low toxic emissions materials Recycle construction waste

10 Carbon Neutral Transportation Goals: Net zero carbon impact in operational phase Account for travel related emissions Guests Staff Goods / Fuel / Materials / Waste

11 Market Recognition/Validation: LEED Rating System Leadership in Energy and Environmental Design US Green Building Council Label International Recognition Point System Guideline to Achieving Goals Sustainable Sites Water Efficiency Energy & Atmosphere Materials and Resources Indoor Environmental Quality 3rd Party Measurement and Verification Certification based on pre-requisites and credits – Silver, Gold, Platinum

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15 Net Zero Energy Methodology: LEED approved energy simulation program All buildings simulated as designed Results Provide profiles of energy loads, and Predict % energy savings Model is not complete; final savings to be determined based on design changes

16 The Brando - Energy Load Profile Process Loads ~ 26% (Refrigeration, Cooking, Dishwashing, Exterior Lighting, Cart Charging, Water Treatment, Waste Water Treatment) Building Loads ~ 74% (LEED Regulated)

17 The Brando - Regulated Load Profile

18 Net Zero Energy Modeling Results Kwh/SF/Yr ASHRAE Requirements: -Air barrier -Lighting power -Lighting controls -HVAC controls -Insulation -Glass g-factor

19 Net Zero Energy Modeling Results Kwh/SF/Yr Additional Design Measures: -SWAC (Sea Water A/C) -Equipment Loads -Natural Ventilation

20 Net Zero Energy Modeling Results Kwh/SF/Yr Renewable Sources: -500Kw PV Array -Solar Hot Water (For LEED, SWAC is a design feature, not a renewable energy)

21 Net Zero Energy Modeling Results Kwh/SF/Yr -Energy reduction of 80% of total loads -Achieves all LEED points for energy (15% reduction required)

22 Energy Savings Profile

23 SOLAR Energy Voltaic panellings « BIOFUEL » Energy Coconut - Coprah oil Generators SWAC 2,4 MW f Pipe Ø 450 mm Intake: 900 m deep Zinc-Bromine Flow-Batteries  20 + years Service Design Life  1000’s of Deep discharge cycles over service lifetime  « Environment friendly », made from highly-recyclable materials CETO Wave Energy Electricity + Desalinization

24 Electricity 3,455,000 KWh per year Coconut Oil Generators 4 units of 450KW using 100% of coconut oil; 600 T of coconut oil per year 2,100,000 KWh per year for the hotel 1,355,000 KWh per year for the residences Solar Panels 500 KWC installed; 2950 panels of 170WC (1.3 m 2 per panel); 675,000 KWh per year Energy Storage ZBB Flow Batteries 2 modules of 500 kW Water 110 m 3 of drinkable water per day 3 water networks: 1.Drinkable water network – lens & desalination (osmosis) 2.Non-drinkable water network – lens + rain water 3.Watering network – Sewage station Underground lens 70 m 3 per day on Onetahi; 70 m 3 per day on Tiaranau Desalination110 m 3 per day Energy RequirementProduction Capabilities Cold Water 2.4 MWf SWACPipe diameter 450 mm 1.4 MWf for the hotel 1.0 MWf for the residences

25 CENTRALISED SEA WATER AIR CONDITIONING c Sea Water Primary closed loop Chilled fresh water Secondary closed loop Cold water : 5/6°C Temperate water : 12/13°C Building s Titanium cold Exchanger Deep cold water intake Shallow warm water effluent Chilled water closed loop distribution

26 Sea Water Air Conditioning (SWAC)

27 Selected Track Motu Onetahi – project site Lagoon Reef Barrier Ocean Motu 2 400 m of pipe  600 m in lagoon trench  140 m in ocean trench  1.660 m free floating weighted to bottom SWAC POSITION

28 CETO Technology – Wave Energy

29 Net Zero Energy: Closing the Gap Kwh/SF/Yr Options to reduce final 4.1 load: Site Net Zero: -Increase PV array > 500Kw -Develop storage system – Zinc Bromine Flow Battery -Wave Energy Source Net Zero: -Bio-fuel generators (coconut oil) -Carbon offsets for transport of fuel to island * *Note: 90% of all coconut oil produced in FP is exported thus transported away using fuel

30 Water Balance Goals: Low Energy Water Independence Limit reliance on desalination Protect the Water Lens Conservative drawdown Prevent Contamination

31 Water Balance Methodology Conservation Low flow fixtures and efficient equipment Reduce Potable Demand Use reclaimed effluent WCs, Urinals, Irrigation, Laundry, Fire Suppression Rainwater Harvesting 100% Waste Water Treatment to Potable Standard Infiltrated effluent replenishes Lens Ecological treatment Low energy Minimal sludge

32 Water Load Reduction Fixture and Equipment Standards Flush FixturesMax Water Use Dual flush toilets6.06 / 3.03 liters per use Urinals1.89 liters per use Flow FixturesMax Water Use Lavatories Public Areas1.9 liters per minute Lavatories Villas8.3 liters per minute Kitchen Sinks8.3 liters per minute Showers9.5 liters per minute Process Use EquipmentMax Water Use Clothes Washer307 liters/m2/cycle Dishwasher with racks3.8 liters per rach Ice Machines76 liters / 45kg Food Steamers7.6 liters / hr Pre-rinse spray valves5.3 liters / minute

33 Water Profile End UsePotableNon-Potable Drinking Water2.0 Irrigation7.0 Showers16.0 Sinks2.0 WCs / Urinals5.3 Plunge Pools4.0 Swimming Pool5.0 Laundry6.0 Dishwashing9.5 Maintenance3.0 Spa25 Total m3 / day84.8

34 Water Demand Split End UsePotableNon-Potable Drinking Water2.0 Irrigation7.0 Showers16.0 Sinks2.0 WCs / Urinals5.3 Plunge Pools4.0 Swimming Pool5.0 Laundry6.0 Dishwashing9.5 Maintenance3.0 Spa25 Total m3 / day63.521.3

35 Water Profile Split Potable

36 Site Water Balance Profile 10% more efficient than LEED 25% less water use from lens or desalination Achieves all LEED points for water

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39 Material Goals: Utilize local materials Utilize recycled content materials Source wood sustainably Use low toxic emissions materials Recycle construction waste

40 Materials Regional Materials  Limited island resources  Ironwood, non-endemic wood  Pandanus  Coral, sand aggregate Recycled Content  Palmex roofing  Composite decking  Cement  Iron  Insulation Rapidly Renewable Materials  Pandanus  Bamboo flooring Composite Wood Products  Urea-formaldehyde free (Carcinogenic, respiratory irritant, allergic reactions)  Fiberboard, Particle board, plywood FSC (Forestry Stewardship Council) certified sustainably harvested and handled wood for:  Structural Framing  Flooring  Sub-flooring  Wood doors  Finishes  Fixed Furniture Volatile Organic Compounds (VOCs)  Sealants, paints, primers, adhesives  Limits and threshold compliance  Contribute to excessive ground ozone  Cause smog, crop destruction, respiratory ailments

41 Construction Waste Management Divert from landfill through recycling or reuse 50% of waste from:  Concrete/Masonry  Carboard  Plastics  Metals  Wood

42 Carbon Neutral Transportation Goals: Net zero carbon impact in operational phase Account for travel related emissions Guests Staff Goods / Fuel / Materials / Waste

43 Brando Boundary Options Boundary 1: All carbon associated with travel on the island Boundary 2: Transportation from Tahiti to The Brando Boundary 3: International transportation to Tahiti

44 Boundary 1: Tetiaroa  Bikes provided for all guests  All motorized vehicles are electric Boundary 2: Tahiti  Docks and airport within 500m of public transport  Shuttle to Air Tetiaroa from ICT international terminal  Staff incentives for using public transportation  Carbon-offset purchase for inter-island transport Boundary 3: International  Guest option to purchase carbon offsets

45 Issues Encountered in Sustainable Goals  Tight insulated envelope vs traditional breathable design Risk of humidity damage Cost/benefit of insulation with low marginal cost of SWAC May encourage more AC use  Window design Solar gain and conductivity loss vs light energy savings  Closing the water loop Effluent to potable Administrative opposition Rationale of roof rain water capture (lens reservoir)  Difficulty and cost of closing energy gap Transportation and boundary definition are key  Limits to going green in remote island locations Local recycling capability Availability of reused, recycled or local materials Politics (pandanus monopoly), availability

46 M AURU ’ URU !


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