Green Zero Carbon Home
Renovation of 1970's house to a zero carbon footprint
General Energy Use, Strategies and Systems
Energy Use:
15kW roof mounted solar PV system
2 Bosch 5 ton ducted heat pumps
Triple-glazed windows
Extra insulation
Heat pump hot water tank
| Zero Net Energy Definition Used | Site Energy Use |
|---|
Monthly Energy Data and Utilities
Electric Utility:
Eversource
Gas Utility:
none
Other purchased Fuels:
Heating oil
Datasets and utility bills sources and reliability:
Annual heating oil data is 100% accurate for delivery records. Daily use is from gauges on the oil tank and is not as reliable. It is pretty good if averaged over about 5 days.
Electricity data is from Eversource bills and an Efergy whole house meter. It is 100% accurate.
Solar power data is from the Solar Edge reporting system and has been audited to the net-metering credits on my Eversource bills
Green Zero Carbon Home
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 |
|---|
| Annual renewable energy generated | 15,000 kWh |
|---|---|
| Annual Renewable Energy Generated Data Type | Measured |
| Power Rating | Renewable Energy System Type(s) | Source of Annual Production Data |
|---|---|---|
| 15,670Watts | Photovoltaics | Metered |
Annual Energy Import/Export
| Electricity amount (imported from grid) | 10,000 kWh/year |
|---|---|
| Net electricity usage (purchased electricity) | 10,000 kWh/year |
| Electricity amount (credited or exported to grid) | 15,000 kWh/year |
| Natural gas amount (purchased energy) | 5,000 kWh/year |