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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.

May 27 2015, 00:15 -To- May 28 2015, 00:00 EST

Total Electric Energy Use

Peak kW

kWatt-hrs
Consumption from utility 4.2 26.2
PV production 4.2 29.7
Fed back to Utility 3.6 21.3
PV used by house 2.6 8.4
Net purchased electricity 2.5 -3.5

Selected Electric Energy End Use

Peak kW

kWatt-hrs
A/C Condenser 0.0 0.0
Air Handler 0.3 3.1
Mini-split Heat Pump 0.4 7.5
Kitchen Refrigerator 0.5 2.2
Garage Refrigerator 0.4 3.4
Whole House Fan 0.1 0.6
Lighting, plug loads and other 3.5 9.3
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 0.1 2.0
Furnace 0.0 0.0

Indoor Conditions

Avg

Min/Max
Thermostat Temp (F) 78.4 77.6/ 79.2
Thermostat RH (%) 50.7 48.7/ 54.5
Tile Floor Temp (F) 72.3 71.1/ 73.0

Weather Conditions & Other

Avg/Total

Min/Max
Ambient Temp (F) 32767.0 99999.0/ -99999.0
Ambient RH (%) 32767.0 99999.0/ -99999.0
Horz. Plane Irradiation (wh/m2) 1.0 0.0/ 2.2
PV Plane Irradiation (wh/m2) 6099.4 0.0/ 871.1
Ground Temp @ 1ft (F) 84.1 79.7/ 91.1
Garage Temp (F) 81.2 77.5/ 86.7
Attic Temp (F) 86.2 77.3/ 101.7
Hot Water Consumed (Gal) 48.1 0.0/ 14.5
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