Afton VA Near Zero Energy Home
Mountain Views and low impact
General Energy Use, Strategies and Systems
Energy Use:
Home uses Passive solar, geothermal HVAC, well insulated walls, Energy star windows and a photovolatic array for energy production.
Zero Net Energy Definition Used
Site Energy Use
Monthly Energy Data and Utilities
Energy Data Type: Verified
Electric Utility: Central Virginia Electric Cooperative
Other purchased Fuels: Propane fire place and gas stove for cooking
Afton VA Near Zero Energy Home
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
10.26 KW solar array on barn. 36 Suniva 285 watt modules (18 mounted on 8/12 barn roof (34 degrees) and 18 mounted on 4/12 barn shed roof (18.4 degrees)
Two SMA sunnyboy 5.0TL-US Inverters
Annual renewable energy generated
14,552 kWh
Annual Renewable Energy Generated Data Type
Measured
Power Rating
Renewable Energy System Type(s)
Source of Annual Production Data
10,260Watts
Photovoltaics
Metered energy from Sunnyboy inverters
Base on bidirection electri meter the Net consumption for the home (production - Imported electricity) = ~2617 KWHr (this is estimated to be 90% less than the energy consumption for an equivalent conventional home without the energy efficient design features).
Annual Energy Import/Export
Electricity amount (imported from grid)
11,082 kWh/year
Net electricity usage (purchased electricity)
2,617 kWh/year
Electricity amount (credited or exported to grid)
8,465 kWh/year
Mountain Views and low impact
General Energy Use, Strategies and Systems
Energy Use:
Home uses Passive solar, geothermal HVAC, well insulated walls, Energy star windows and a photovolatic array for energy production.
| Zero Net Energy Definition Used | Site Energy Use |
|---|
Monthly Energy Data and Utilities
Energy Data Type:
Verified
Electric Utility:
Central Virginia Electric Cooperative
Other purchased Fuels:
Propane fire place and gas stove for cooking
Afton VA Near Zero Energy Home
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 |
|---|
| 10.26 KW solar array on barn. 36 Suniva 285 watt modules (18 mounted on 8/12 barn roof (34 degrees) and 18 mounted on 4/12 barn shed roof (18.4 degrees) Two SMA sunnyboy 5.0TL-US Inverters |
| Annual renewable energy generated | 14,552 kWh |
|---|---|
| Annual Renewable Energy Generated Data Type | Measured |
| Power Rating | Renewable Energy System Type(s) | Source of Annual Production Data |
|---|---|---|
| 10,260Watts | Photovoltaics | Metered energy from Sunnyboy inverters Base on bidirection electri meter the Net consumption for the home (production - Imported electricity) = ~2617 KWHr (this is estimated to be 90% less than the energy consumption for an equivalent conventional home without the energy efficient design features). |
Annual Energy Import/Export
| Electricity amount (imported from grid) | 11,082 kWh/year |
|---|---|
| Net electricity usage (purchased electricity) | 2,617 kWh/year |
| Electricity amount (credited or exported to grid) | 8,465 kWh/year |