Zero%20Energy%20Homes

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Zero Energy Homes

• Costs, Energy and Environmental Impact

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Basic Features

• Photovoltaic solar panels
• Geothermal heat pumps
• Tankless water heater
• High efficiency furnace
• Low energy appliances

3
Zero Energy Homes Costs

• Greater initial Cost of House
• 8,000 - 16000 when massed produced
• Energy Efficient Mortgages
• Reduced monthly energy bills
• Save 70 on monthly energy bills
• Save over 1,000 on yearly energy bills
• Energy prices increase, savings increase

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Energy Savings
Site Description Power Use (kWh) PV Array Output (AC kWh) Net Power Use Monthly Cost) of Power PV Output of Total Loads
Zero Energy Home 837 502 335 27 60
Control Home 1,839 0 1,839 147 0
Source http//www.nrel.gov/docs/fy01osti/29915.pd
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Advantages of Zero Energy Homes

• Solar energy
• Pollution free
• Renewable energy source
• No cost
• No hazardous products
• Minimal use of secondary power sources

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Disadvantages of Solar Energy

• Large initial cost
• Energy produced during day
• Depends on climate
• Large surface area required

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Canadian Perspective

• Environmentally friendly
• Economically not worth it
• Energy savings not enough
• Initial costs out weighs net savings
• Climate not suited
• Less sunlight during winter months
• WAIT