General Energy Use, Strategies and Systems

Energy Use:

High performance envelope with passive solar strategies combined with renewable energy generation and an EV charging station added in 2014. This allows occupants to use renewable energy generated on site to drive approx. 8000 miles per year and still be a net producer of energy

Energy Strategies:

The house maximizes energy efficiency by being long and narrow on the true east west axis with simple massing. It is a super insulated passive solar design which uses a ground source heat pump for all heating and domestic hot water; the finished floor on the first level is a 4” ground and polished concrete slab for thermal mass and the open plan allows for flexibility as well as southern daylight into all living spaces. The 10KW net-metered wind turbine produces all of the electricity required for heating, hot water, cooking, lighting and appliances. No fossil fuels are used

Zero Net Energy Definition Used Site Energy Use

Monthly Energy Data and Utilities

Energy Data Type:
Electric Utility:
Green Mountain Power
Datasets and utility bills sources and reliability:

100% reliable from utility bills, although varies from year to year. Information given is the average of the last few years with an electric car driven approx 8000 miles per year for commuting

Renewables and Energy Balance

Renewable Energy Sources:
Renewable energy is generated on-site but not on the building (e.g. wind turbine in the parking lot)
Renewable Energy System Description & Details
10 kW Bergey Wind turbine, 4kW Allsun tracker added in 2010
Annual renewable energy generated 16,000 kWh
Annual Renewable Energy Generated Data Type Modeled, Measured
Power Rating Renewable Energy System Type(s) Source of Annual Production Data
14,000Watts Photovoltaics, Wind Monitoring with meters

Annual Energy Import/Export

Electricity amount (imported from grid) 8,000 kWh/year
Electricity amount (credited or exported to grid) 8,000 kWh/year