White Claw Farm Net Zero Deep Energy Retrofit
General Energy Use, Strategies and Systems
Energy Use:
Utility meter read 100,691 on the morning of Jan 1st 2014 and 98,990 on the morning of Jan 1st 2015. PV meter read 12,932 on the morning of Jan 1st 2014 and 19,080 on the morning of Jan 1st 2015. We had a net export of 1,701 kWh, used 4,447 kWh, and generated 6,148 kWh. From June 2014 through May 2015, a colder than normal year, the usage was 3,939 kWh, a drop due to fixing heat pump controls, and generation was 6,106 kWh, for a net export of 2,167 kWh. During this time we used perhaps 1/10th cord of wood in the woodstove, chiefly for atmosphere, perhaps offsetting 100 kWh into the heat pump.
Zero Net Energy Definition Used
Source Energy Use
Monthly Energy Data and Utilities
Energy Data Type: Verified
Electric Utility: NSTAR
Other purchased Fuels: A woodstove provides ambiance and heat during outages – it was not operational during the original data period.
Datasets and utility bills:
White Claw Farm Net Zero Deep Energy Retrofit
Renewables and Energy Balance
Renewable Energy Sources: Renewable energy is generated within the building footprint (e.g. solar PV on the roof)
Renewable Energy System Description & Details
4.76 kW Sunpower system with 5 kW SMA inverter
Annual renewable energy generated
6,148 kWh
Annual Renewable Energy Generated Data Type
Measured
Power Rating
Renewable Energy System Type(s)
Source of Annual Production Data
5Watts
Photovoltaics
Measured at a dedicated meter post-inverter
Annual Energy Import/Export
Electricity amount (imported from grid)
4,447 kWh/year
Electricity amount (credited or exported to grid)
6,148 kWh/year
General Energy Use, Strategies and Systems
Energy Use:
Utility meter read 100,691 on the morning of Jan 1st 2014 and 98,990 on the morning of Jan 1st 2015. PV meter read 12,932 on the morning of Jan 1st 2014 and 19,080 on the morning of Jan 1st 2015. We had a net export of 1,701 kWh, used 4,447 kWh, and generated 6,148 kWh. From June 2014 through May 2015, a colder than normal year, the usage was 3,939 kWh, a drop due to fixing heat pump controls, and generation was 6,106 kWh, for a net export of 2,167 kWh. During this time we used perhaps 1/10th cord of wood in the woodstove, chiefly for atmosphere, perhaps offsetting 100 kWh into the heat pump.
| Zero Net Energy Definition Used | Source Energy Use |
|---|
Monthly Energy Data and Utilities
Energy Data Type:
Verified
Electric Utility:
NSTAR
Other purchased Fuels:
A woodstove provides ambiance and heat during outages – it was not operational during the original data period.
Datasets and utility bills:
White Claw Farm Net Zero Deep Energy Retrofit
Renewables and Energy Balance
Renewable Energy Sources:
Renewable energy is generated within the building footprint (e.g. solar PV on the roof)
| Renewable Energy System Description & Details |
|---|
| 4.76 kW Sunpower system with 5 kW SMA inverter |
| Annual renewable energy generated | 6,148 kWh |
|---|---|
| Annual Renewable Energy Generated Data Type | Measured |
| Power Rating | Renewable Energy System Type(s) | Source of Annual Production Data |
|---|---|---|
| 5Watts | Photovoltaics | Measured at a dedicated meter post-inverter |
Annual Energy Import/Export
| Electricity amount (imported from grid) | 4,447 kWh/year |
|---|---|
| Electricity amount (credited or exported to grid) | 6,148 kWh/year |