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Summary Report
Total Energy Use
Other Use
HVAC System
Interior Conditions
Ambient Conditions
Hybrid Charge
Gas Consumption
Refrigerator(s)
DHW Consumption

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This site monitors a deep retrofit, zero energy home located in Cocoa Beach, Florida. Originally built in 1957, it is a 2000 sqft, four bedroom/two bath home with an office space and Florida room. It is occupied by two adults and two teenagers. Energy consumption is offset by a 4.9 kw photovoltaic system. The home has double pane, low-e vinyl windows (U=0.29, SHGC-0.24). Walls are 8" concrete block with EIFS R-5 exterior wall insulation, R-19 ceiling insulation and a white metal roof. Heating and cooling is provided by an aging 10 SEER, straight cool split system w/gas furnance and supplemented with a centrally located 9,000 Btu/hr SEER 26/HSPF 12 minisplit heat pump. A 20,000 gallon pool is DC pumped by a 450 watt pv array. Additional home features include all tile flooring, CFL lighting, whole house fan ventilation and gas appliances. In late September 2011, a hybrid vehicle was added to the house load. Data collection began in November 2010.

Oct 23 2014, 00:15 -To- Oct 24 2014, 00:00 EST

Total Electric Energy Use

Peak kW

kWatt-hrs
Consumption from utility 4.3 17.0
PV production 4.2 26.0
Fed back to Utility 3.7 21.6
PV used by house 0.9 4.5
Net purchased electricity 4.3 -9.0

Selected Electric Energy End Use

Peak kW

kWatt-hrs
A/C Condenser 0.0 0.0
Air Handler 0.0 0.0
Mini-split Heat Pump 0.0 0.0
Kitchen Refrigerator 0.5 1.8
Garage Refrigerator 0.6 3.9
Whole House Fan 0.0 0.5
Lighting, plug loads and other 4.1 10.7
Plug-in Hybrid Automobile Charge 0.0 0.1

Gas Consumption (ft3)

Avg

Total
Instantaneous DHW 0.0 0.8
Clothes Dryer 0.0 0.0
Range/Oven 0.0 0.0
Furnace 0.0 0.0

Indoor Conditions

Avg

Min/Max
Thermostat Temp (F) 78.8 78.1/ 79.8
Thermostat RH (%) 47.7 43.8/ 51.4
Tile Floor Temp (F) 76.4 75.7/ 77.0

Weather Conditions & Other

Avg/Total

Min/Max
Ambient Temp (F) 81.6 77.4/ 87.7
Ambient RH (%) 69.3 68.8/ 69.7
Horz. Plane Irradiation (wh/m2) 0.2 0.0/ 0.2
PV Plane Irradiation (wh/m2) 5741.7 0.0/ 853.1
Ground Temp @ 1ft (F) 82.6 82.3/ 83.7
Garage Temp (F) 74.9 71.7/ 80.4
Attic Temp (F) 78.6 71.8/ 92.1
Hot Water Consumed (Gal) 51.6 0.0/ 19.0
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