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Resource Efficient Development Geos Neighborhood Developer: Norbert Klebl Feb 19, 2010

Resource Efficient Development Geos Neighborhood Developer: Norbert Klebl Feb 19, 2010. Market. Why Are We Interested in Low Energy Homes?. Buildings consume: 39% of total energy 71% of electricity 53% of natural gas (primary). - 2 -. Germany.

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Resource Efficient Development Geos Neighborhood Developer: Norbert Klebl Feb 19, 2010

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  1. Resource Efficient Development Geos Neighborhood Developer: Norbert Klebl Feb 19, 2010

  2. Market Why Are We Interested in Low Energy Homes? Buildings consume: • 39% of total energy • 71% of electricity • 53% of natural gas • (primary) -2-

  3. Germany By 2007 more than 10,000 Passive Houses built in Europe -3-

  4. Master Plan Gilligan Family LP Property Indiana Street Croke Canal Geos Neighborhood 69th Ave. -4-

  5. Vision Geos Incorporates Multiple Home Types for a Diversity of Needs -5-

  6. Low Impact Development Decentralized Detention -6-

  7. Public Landscapes: Street Tree Rain Gardens

  8. Technology Passive solar: optimal orientation created with master plan • Comparative development patterns in Highland neighborhood (urban Denver) • Optimizing density with solar access designed (required) for entire neighborhood and individual lots • Utilizing unique features of Colorado’s climate • Taking advantage of 300 sunny days per year: open homes for winter sun, shade against summer heat -8-

  9. Technology Geos Utilizes Demonstrated and Cost-Effective Designs • High performance shell – high insulation, low infiltration • Heat Recovery Ventilator – fresh air intake and energy conservation • Passive solar orientation – sun is primary source of conditioning heat • • Solar thermal collectors – for domestic hot water and back-up conditioning heat • • Solar photovoltaic – achieves net zero energy goal -9-

  10. Technology Energy Model: 1,700sf Paired Home 5 kW photovoltaic R-50 roof R-30 walls R-5 tuned fiberglass windows R-22 ICF basement walls Less than 1 Air Change per 20 Hours ( < 0.05 NACH) -10-

  11. Technology Geo-Assisted Heat Recovery Ventilation (HRV) System • Provides constant filtered fresh air • Temperature equalization in all rooms • Heating/cooling distribution • Low maintenance • Very low noise -11-

  12. Technology A -12-

  13. Technology Annual Heat Loss Through the Building Envelope -13-

  14. Technology Goes Objective: Build Net Zero Energy Homes... Now! • Energy Consumption Reduction Natural Gas Electricity Earth Loop Cooling & Building Shell - 15% Ground Source Heat Pump 20% 8,000 kWh = $1,250 1,000 Therms = $1,150 Energy Star Appliances - 5% Passive Solar 30% Efficient Lighting 10% Monitoring - 5% Photovoltaic Solar Offset 65% High Performance Shell 40% HRV - 10% TotalReduction100% Total Reduction 100% -14-

  15. Economics GEOS Design: Net-Zero Energy Homes That Are Cash Flow Neutral • Reduced utility payments offset increased mortgage costs Incremental monthly cash flows of Geos improvements $200 saved energy costs = $285 incremental monthly mortgage $85 tax savings $45,000 incremental improvements -15-

  16. Economics -16-

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