General Energy Use, Strategies and Systems

Energy Strategies:

The challenge of building energy efficient affordable rental housing involves per unit cost limits, motivating sub-contractors and effecting occupant behavior. The architectural details were reviewed by consultants for not only improved performance but for constructability and knowing the utility payment structure (the Owner pays all utilities in this case). All these factors defined the energy strategy.

Zero Net Energy Definition Used Site Energy Use

Monthly Energy Data and Utilities

Energy Data Type:
Electric Utility:
Datasets and utility bills:
PDF icon Energy Modeling Provided by Consultant236.65 KB
Datasets and utility bills sources and reliability:

The buildings are only recently occupied. The energy data from the VRF system is collected through a component of the system. There is a plan to monitor unit plug loads to collect and analyze the data and provide resident education if necessary.

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
Because of the location in a historic district or an area controlled by the Old Kings Highway commission we were required to use an all black panel. Our first choice was the Sun Power 350 watt panel which would have generated more power but we ended up with the LG 300 watt panel. Our consultant managed to minimize the lower performance. Once the residences are occupied for a year we plan to evaluate the actual load versus the PV system performance and potentially add ground mounted arrays to fill any gap.
Annual renewable energy generated 160,000 kWh
Annual Renewable Energy Generated Data Type Estimated
Power Rating Renewable Energy System Type(s) Source of Annual Production Data
300Watts Photovoltaics The PV system will be installed in March so to date our production data is estimated. We are expecting to export during the summer.

Annual Energy Import/Export