Bali DreamGde 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 4.80July 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 Bank3 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 ConventionalBuilding $16,050 $40,000Solar $24,300
($10,000)$0
Water $3,000 (23,000) $0Total $43,350 $40,000
Yearly Water $0 $120Yearly Electricity $0 $600ROI 5 years
“Naturalness is the basis of effectiveness.” ~ Maharishi Mahesh Yogi
Thank you!