2

Sustainable Development

Environment

Economy Culture

Liveable Viable

Equitable

Sustainable

The BrandoHotel

Conservation Tetiaroa

Eco-Station Research facility

Staff Village

Technical area

SpaGardens

Residences

Residences

Western Beach Villas

Southern Beach Villas

Sustainability Goals for The Brando:

Net Zero Energy Use Site Water Balance Materials : Local, Recycled, Renewable Carbon Neutral Transportation Market Recognition (Validation - LEED)

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 isgenerated from renewable energy

Water Balance Goals:

• Low Energy Water IndependenceLimit reliance on desalination

• Protect the Water LensConservative drawdownPrevent Contamination

Material Goals:

• Utilize local materials

• Utilize recycled content materials

• Source wood sustainably

• Use low toxic emissions materials

• Recycle construction waste

Carbon Neutral Transportation Goals: • Net zero carbon impact in operational phase

• Account for travel related emissions GuestsStaffGoods / Fuel / Materials / Waste

Market Recognition/Validation:LEED Rating System• Leadership in Energy and Environmental Design

US Green Building Council LabelInternational 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

Net Zero Energy Methodology:

• LEED approved energy simulation program• All buildings simulated as designed• Results

Provide profiles of energy loads, andPredict % energy savings

• Model is not complete; final savings to bedetermined based on design changes

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)

Load Profile0%

20%

40%

60%

80%

100%

Process LoadsStaff HousingVillasAll Other Build-ings

The Brando - Regulated Load Profile

9%

30%

14%

39%

8%

PeopleEquipmentInfiltrationConductivitySolar Gain

Net Zero Energy Modeling Results

Tahiti Baseline ASHRAE0

5

10

15

20

25

30

24.7

20.3

Kwh/SF/Yr

ASHRAE Requirements: -Air barrier -Lighting power -Lighting controls -HVAC controls -Insulation -Glass g-factor

Net Zero Energy Modeling Results

Tahiti Base-line

ASHRAE Design0

5

10

15

20

25

30

24.7

20.3

11.4

Kwh/SF/Yr

Additional Design Measures: -SWAC (Sea Water A/C) -Equipment Loads -Natural Ventilation

Net Zero Energy Modeling Results

Tahiti Base-line

ASHRAE Design Design w/ Renewables

0

5

10

15

20

25

30

24.7

20.3

11.4

4.1

Kwh/SF/Yr

Renewable Sources: -500Kw PV Array -Solar Hot Water(For LEED, SWAC is adesign feature, not a renewable energy)

Net Zero Energy Modeling Results

Tahiti Base-line

ASHRAE Design Design w/ Renewables

0

5

10

15

20

25

30

24.7

20.3

11.4

4.1

Kwh/SF/Yr

-Energy reduction of 80% of total loads-Achieves all LEED points for energy (15% reduction required)

Energy Savings Profile

71%

13%

6%

5%5%

SWACEquipmentLightingEnvelopeNautral Ventilation

SOLAR EnergyVoltaic panellings

« BIOFUEL » Energy Coconut - Coprah oil Generators

SWAC2,4 MW fPipe Ø 450 mmIntake: 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 EnergyElectricity + Desalinization

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

residencesSolar Panels

500 KWC installed; 2950 panels of 170WC (1.3 m2 per panel);

675,000 KWh per year

Energy Storage

ZBB Flow Batteries 2 modules of 500 kW

Water 110 m3 of drinkable water per day

3 water networks:1. Drinkable water network – lens &

desalination (osmosis)2. Non-drinkable water network – lens + rain

water3. Watering network – Sewage station

Underground lens

70 m3 per day on Onetahi; 70 m3 per day on Tiaranau

Desalination 110 m3 per day

Energy Requirement Production Capabilities

Cold Water2.4 MWf

SWAC Pipe diameter 450 mm1.4 MWf for the hotel

1.0 MWf for the residences

CENTRALISED SEA WATER AIR CONDITIONING

c

Sea WaterPrimary closed

loop

Chilled fresh waterSecondary closed

loop

Cold water : 5/6°CTemperate water : 12/13°C

Buildings

Titanium cold Exchanger

Deep cold water intake

Shallow warm water effluent

Chilled water closed loop distribution

Sea Water Air Conditioning (SWAC)

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

CETO Technology – Wave Energy

Net Zero Energy: Closing the Gap

Design w/ Renewables

0

5

10

15

20

25

30

4.1

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

Water Balance Goals:

• Low Energy Water IndependenceLimit reliance on desalination

• Protect the Water LensConservative drawdownPrevent Contamination

Water Balance Methodology

• ConservationLow flow fixtures and efficient equipment

• Reduce Potable DemandUse reclaimed effluentWCs, Urinals, Irrigation, Laundry, Fire SuppressionRainwater Harvesting

• 100% Waste Water Treatment to Potable StandardInfiltrated effluent replenishes LensEcological treatmentLow energyMinimal sludge

Water Load ReductionFixture and Equipment Standards

Flush Fixtures Max Water Use

Dual flush toilets 6.06 / 3.03 liters per use

Urinals 1.89 liters per use

Flow Fixtures Max Water Use

Lavatories Public Areas 1.9 liters per minute

Lavatories Villas 8.3 liters per minute

Kitchen Sinks 8.3 liters per minute

Showers 9.5 liters per minute

Process Use Equipment Max Water Use

Clothes Washer 307 liters/m2/cycle

Dishwasher with racks 3.8 liters per rach

Ice Machines 76 liters / 45kg

Food Steamers 7.6 liters / hr

Pre-rinse spray valves 5.3 liters / minute

Water ProfileEnd Use Potable Non-Potable

Drinking Water 2.0

Irrigation 7.0

Showers 16.0

Sinks 2.0

WCs / Urinals 5.3

Plunge Pools 4.0

Swimming Pool 5.0

Laundry 6.0

Dishwashing 9.5

Maintenance 3.0

Spa 25

Total m3 / day 84.8

Water Demand Split

End Use Potable Non-Potable

Drinking Water 2.0

Irrigation 7.0

Showers 16.0

Sinks 2.0

WCs / Urinals 5.3

Plunge Pools 4.0

Swimming Pool 5.0

Laundry 6.0

Dishwashing 9.5

Maintenance 3.0

Spa 25

Total m3 / day 63.5 21.3

Water Profile

25%

75%

Non-Potable Potable

Split Potable

Drinking Water 3%

Showers 25%

Sinks 3%

Plunge Pools 6%

Pool 8%

Dishwasher 15%

Spa 40%

Site Water Balance Profile

LEED Base-line

Initial Design Final Design0%

20%

40%

60%

80%

100%

120%10% more efficient than LEED

25% less water use from lens or desalination

Achieves all LEED points for water

Material Goals:

• Utilize local materials

• Utilize recycled content materials

• Source wood sustainably

• Use low toxic emissions materials

• Recycle construction waste

MaterialsRegional 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, plywoodFSC (Forestry Stewardship Council)certified sustainably harvested andhandled 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

Construction Waste Management

Divert from landfill through recycling or reuse 50% of waste from:

Concrete/Masonry Carboard Plastics Metals Wood

Carbon Neutral Transportation Goals: • Net zero carbon impact in operational phase

• Account for travel related emissions GuestsStaffGoods / Fuel / Materials / Waste

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

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

Issues Encountered in Sustainable Goals

Tight insulated envelope vs traditional breathable designRisk of humidity damageCost/benefit of insulation with low marginal cost of SWACMay encourage more AC use

Window designSolar 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 gapTransportation and boundary definition are key

Limits to going green in remote island locationsLocal recycling capabilityAvailability of reused, recycled or local materialsPolitics (pandanus monopoly), availability

MAURU’URU !