Bali Dream

Gde PutraPaean LeeLilith ShoemakerLoida Vasquez

Sustainability, Buildings, and the Built Environment

Spring 2014

Design Team

Gde Putra ~ Sketchup Artist Visionary

Lilith Shoemaker ~ Water & Waste Specialist

Loida Vasquez ~ Solar Energy Master

Paean Lee ~ Napkin Drawing Inspiration

Mission Environmental ~ Natural Building

Social ~ Vastu Principles

Financial ~ Cost Benefit

Self Sustaining

LEED (Leadership in Energy and Environmental Design)

Guidelines

Family of 4

Map & Climate

Top View

34 ft.

50 ft.

14 ft.

Front View

Candi Bentar ~ Tower Gate

Southeast View

Shading Trees

Longan

West View

Family Pavillion

North View

Solar Panels

Northwest View

Upper Ventilation Windows

Roof Design

Create Maximum Circulation

Hot AirHot Air

Inner North Wall

Ventilation

Cool Air Cool Air

Inner Walls

Entrance

Meditation Room

KitchenDining Room

Master Bedroom

Living Room

Children’s Bedroom

Office Space

Courtyard

Vastu Room Placements

Inner Entrance

Bamboo Partition

$7000$2300$0$1000$3000$50$500$2200

Adobe Walls Clay Roof Tiles Stone Foundation Authentic Wood Windows Parquet Wood Flooring Bamboo Entrance Wood Solar Pavillion Man power

Building Materials

Total: $16050= $13.88 per ft2

Water Logic

Water holding Options

Purchased Cistern: $23,000

Site-made Fiber reinforced concrete: $3000 + Labor

Water Storage

Cistern

Pump

Pressure Tank PEX System(manifold)

50 gal Water TankSubmersible Pump

Septic

Garden Outlet

Toilet Outlet

KitchenShower & Sink

Laundry

Off-Gridish

Solar Power System

kWh/m^2/day

Denpasar, Indonesia

Jan Feb Mar April May June

4.84 4.96 5.36 5.33 5.14 4.80

July Aug Sep Oct Nov Dev

4.74 5.27 5.88 6.10 5.57 5.18

Solar Irradiance

1. 1000 kWh per month needed2. Chose lowest productive month3. 4.84 kWh X 31 days = 150 kWh/month4. 1000 kWh/150 kWh (per panel) = 6.66 panels or

7 panels5. Increase to 8 panels for good measure

Solar Panel Array

If each panel outputs 250 watts, then… 250w X 8 panels = 2000 total watts If we choose a 24 V charge controller, then… 2000w/24V = 83.33 or 90 amps 100 amp charge controller needed

Charge Controller

1000 kWh/30 days = 33 kWh X 3 = 99 kWh

99 kWh = 99,000 wh99,000wh/24V = 4,125 AHWe need (4) 24V, 1100 AH forklift batteries

Battery Bank

3 day back-up

Hourly Watt Usage

Peek Hour Wattage Use

The maximum load at any given time is 3,500 watts

An inverter has a 95% efficiencyTherefore, 3,700 watts must be fed into

the inverter in order for a 3,500-w output because 3,500/.95 = 3,685-w

(2) 2,500 watt inverters = 5,000 watts

DC to AC Inverter

8 (250-w) solar panels @ $1.50/watt = $3,000 1 (100 A) charge controller = $300 4 (1,100 AH) forklift batteries = $ 14,000 2 (2,500-w) Inverters = $3,000 Accessories (cables) = $ 4,000 Total Estimated Cost = $24,300 (40yr payoff) Estimated Cost Grid-Tied = $10,000 (17yr

payoff)

Estimated Expense

Cost Analysis

Item Bali Dream Conventional

Building $16,050 $40,000

Solar $24,300 ($10,000)

$0

Water $3,000 (23,000) $0

Total $43,350 $40,000

Yearly Water $0 $120

Yearly Electricity $0 $600

ROI 5 years

“Naturalness is the basis of effectiveness.” ~  Maharishi Mahesh Yogi

Thank you!