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Published byClaude Lewis Modified over 9 years ago
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Advanced Home Energy Efficiency & Solar Energy For New Construction & Major Renovations
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1. Deep Energy Retrofit This is Wayne’s house before the retrofit. 120 years old Row house
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Renovation of Wayne’s house EnerGuide rating before: 46 / 100 EnerGuide rating after: 73 / 100 Winter heat bill before: $800/yr Winter heat bill after: $200/yr Cost of renovation: ~$12,000 Received rebates: $3,900 Annual savings: $600 / year Immediate payback – more comfort
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The insulated wall is now 14” thick (R-40) New window installed
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Increased insulation New windows Air Barrier Many salvaged materials Pine clapboard
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Another example: NOW House 60 Year Old Post-War Housing in Toronto, converted to near net zero energy.
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Passive House in New Brunswick Naugler House
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2. Passive House The most advanced standard for energy efficiency new home construction in the world. The one I visited is so well insulated, it doesn’t require a furnace. Examples – see video about Hawkins house and pictures of Naugler house.
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What is different about the construction of a Passive House? Highly insulated Thicker walls Meticulously sealed Triple-glazed windows Dual wall construction to eliminate thermal bridging. Solar gain through windows is the main heat source (plus the appliances and people) Must have a heat recovery ventilator for ventilation.
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Another Example: Hawkins House, NS
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2. Passive House – similar concepts R-2000 Net Zero Home Equilibrium Housing Passive Solar Design EnerGuide for Houses ratings above 88 1000 Home Challenge
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2. Passive House – Resources Solar Nova Scotia: solarns.ca Canadian Passive House Institute: passivehouse.ca Natalie Leonard: Passive House E-Design passivedesign.ca NOW House – Toronto – nowhouseproject.com Naugler House – Fredericton – www.nauglerhouse.com
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2. Heat Pumps Ground Source Air Source
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Ground Source Heat Pumps
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Air Source Heat Pumps
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3. Solar Energy Solar Hot Water Solar Electricity
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Solar water heater provides a portion of the energy for hot water year round.
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Solar Power in Ship Harbour, NS The Deanery Project Solar electricity can be connected to the grid now, or used off-grid.
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Solar Resources Solar NS – Book, solar courses, website Solar City Efficiency Nova Scotia Solar Rebates
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