The VanGeet Off-Grid House

The Van Geet home near Denver, Colorado, demonstrates the successful integration of energy conservation measures and renewable energy supply in a beautiful, comfortable, energyefficient, 295-m2 (3,176-ft2 ) off-grid home in a cold, sunny climate. Features include a tight envelope, energy-efficient appliances, passive solar heating (direct gain and Trombe wall), natural cooling, solar hot water, and photovoltaics. In addition to describing this house and its performance, this paper describes the recommended design process of (1) setting a goal for energy efficiency at the outset, (2) applying rules of thumb, and (3) using computer simulation to fine-tune the design. Performance monitoring and computer simulation are combined for the best possible analysis of energy performance. In this case, energy savings are estimated as 89% heating and cooling, 83% electrical, and nearly 100% domestic water heating. The heating and cooling energy use is 8.96 kJ/ºC·day·m2 (0.44 Btu/ºF·day·ft2 ).

Data and Resources

Additional Info

Field Value
Author Paul Norton
Maintainer Paul Norton
Last Updated September 26, 2016, 22:05 (Etc/UTC)
Created September 22, 2016, 20:58 (Etc/UTC)
Construction Type New Construction
Evaluation Level Other
Climate Cold
City Denver
State CO
Zip Code 80305
Phase Before 2010
Project Start Date 1995-06-01
Project Estimated End Date 2004-08-31
Project Actual End Date 2004-08-31
Completed House Count 1
Expected House Count 1
Energy Savings Percentage 77
Average Estimated Annual Source Energy (MMBtu) 30
Average Conditioned Floor Area (sqft) 3176

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