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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 30 2014, 00:15 -To- Oct 31 2014, 00:00 EST

Total Electric Energy Use

Peak kW

kWatt-hrs
Consumption from utility 3.8 13.7
PV production 3.7 20.6
Fed back to Utility 3.1 16.2
PV used by house 0.8 4.4
Net purchased electricity 3.8 -6.9

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 0.6 2.0
Garage Refrigerator 0.6 3.4
Whole House Fan 0.1 0.5
Lighting, plug loads and other 3.5 7.6
Plug-in Hybrid Automobile Charge 0.0 0.1

Gas Consumption (ft3)

Avg

Total
Instantaneous DHW 0.1 1.2
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) 79.9 78.6/ 81.1
Thermostat RH (%) 58.2 55.3/ 63.7
Tile Floor Temp (F) 76.5 75.7/ 77.1

Weather Conditions & Other

Avg/Total

Min/Max
Ambient Temp (F) 84.7 78.0/ 93.9
Ambient RH (%) 69.3 68.7/ 69.9
Horz. Plane Irradiation (wh/m2) 3.1 0.0/ 0.7
PV Plane Irradiation (wh/m2) 4902.0 0.0/ 816.3
Ground Temp @ 1ft (F) 81.4 81.2/ 81.9
Garage Temp (F) 76.2 72.0/ 83.3
Attic Temp (F) 80.3 72.2/ 94.2
Hot Water Consumed (Gal) 50.5 0.0/ 15.6
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