Imagine Homes New Construction Occupied Test House

Stecher, D. ; Rapport, A. ; Allison, K.

National Renewable Energy Laboratory (U.S.)

关键词: Buildings;    Ba;    Afue;    Hsp;    Amy;   

DOI  :  10.2172/1087795
RP-ID  :  DOE/GO-102013-3911
RP-ID  :  AC36-08GO28308
RP-ID  :  1087795

美国|英语

来源: UNT Digital Library

【 摘 要 】

This report summarizes the research findings of a long-term monitoring plan to evaluate the performance of an energy-efficient home constructed in 2010 in San Antonio, Texas. Monitoring of the energy use, energy generation, and temperature conditions for this project occurred between July 2010 and October 2011. The heating, ventilation, and air conditioning system effectively maintained acceptable temperatures and humidity levels in peak cooling and heating and non-peak operating periods. Discrepancies were found between modeled and actual energy use values, with actual space cooling energy use closest to the corresponding modeled value. Energy consumption predicted for lighting, appliances, and miscellaneous electrical loads was significantly higher than measured amounts, and energy consumption predicted for cooling was significantly lower than measured amounts. A high amount of the 1,600 kWh of PV-generated electricity produced annually was sent to the electric grid every month. The solar thermal DHW system was the main source of hot water for most of the year and performed well; during summer, electrical use by the backup system was rare.