Advanced Home Energy Efficiency Solar Energy For

Advanced Home Energy Efficiency & Solar Energy For New Construction & Major Renovations

1. Deep Energy Retrofit • This is Wayne’s house before the retrofit. • 120 years old • Row house

Renovation of Wayne’s house Ener. Guide rating before: 46 / 100 Ener. Guide 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

• The insulated wall is now 14” thick (R-40) • New window installed

• Increased insulation • New windows • Air Barrier • Many salvaged materials • Pine clapboard

Another example: NOW House • 60 Year Old Post-War Housing in Toronto, converted to near net zero energy.

Passive House in New Brunswick Naugler House

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.

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. • • •

Another Example: Hawkins House, NS

2. Passive House – similar concepts • • • R-2000 Net Zero Home Equilibrium Housing Passive Solar Design Ener. Guide for Houses ratings above 88 1000 Home Challenge

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

2. Heat Pumps • Ground Source • Air Source

Ground Source Heat Pumps

Air Source Heat Pumps

3. Solar Energy • Solar Hot Water • Solar Electricity

Solar water heater provides a portion of the energy for hot water year round. Lunenburg County, Nova Scotia

Solar Power in Ship Harbour, NS The Deanery Project Solar electricity can be connected to the grid now, or used off-grid.

Solar Resources • Solar NS – Book, solar courses, website • Solar City • Efficiency Nova Scotia Solar Rebates