1830 Peters - Lockrow House
Renovation of a neglected 1852 Greek Revival
General Energy Use, Strategies and Systems
Energy Use:
Mechanical systems include a 3 ton ground source heat pump, a heat recovery ventilator and a whole house dehumidifier. Renewable energy is provided by pole mounted 8.4 kW photovoltaic (PV) and solar hot water (SHW) systems in the rear yard. We located the PV and SHW systems separate from the structure to maintain the historic facade of the structure.
We are now using the excess carbon free energy generated to power a 2012 Nissan Leaf and a 2012 Toyota plug-in Prius to help cover our transportation carbon footprint.
| Zero Net Energy Definition Used | Source Energy Use |
|---|
Monthly Energy Data and Utilities
Energy Data Type:
Verified
Electric Utility:
National Grid
Datasets and utility bills:
| Attachment | Size |
|---|---|
 2011_utility_bills.pdf | 2.41 MB |
| 2012_utility_bills.pdf | 2.14 MB |
 renewable_energy_system.txt | 648 bytes |
Datasets and utility bills sources and reliability:
Utility bills
1830 Peters - Lockrow House
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 |
|---|
| Photovoltaic - (40) 210 watt Evergreen panels on (5) pole mounted racks, 7000 SMA Sunny Boy Inverter (Engineer specified a 7.4 kW system to run house and charge future electric car. The PV contractor suggested 40, 200 watt panels to equally balance arrays across 5 poles but substituted 210 W panels at the time of installation which resulted in a 8.4 kW system.) Climate Master Tranquility TT038 Ground Source Heat Pump (Energy Star Rated) (6894 Heating degree days per designer) Solar Hot Water - Velux Model CLI-U12SKOW/L218EL, SRCC Rated SEF 3.6, 80 gallon Solar Hot water system with electric timer, interconnected with GSHP well to prevent overheating. |
| Annual renewable energy generated | 9,983 kWh |
|---|---|
| Annual Renewable Energy Generated Data Type | Measured |
| Renewable Energy System Type(s) | Source of Annual Production Data |
|---|---|
| Photovoltaics, Geothermal, Other | metered production value |
Annual Energy Import/Export
| Electricity amount (imported from grid) | 9,983 kWh/year |
|---|---|
| Net electricity usage (purchased electricity) | 14 kWh/year |
| Electricity amount (credited or exported to grid) | 9,969 kWh/year |