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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.

Aug 29 2015, 00:15 -To- Aug 30 2015, 00:00 EST

Total Electric Energy Use

Peak kW

kWatt-hrs
Consumption from utility 1.5 25.1
PV production 3.7 25.6
Fed back to Utility 2.8 15.9
PV used by house 1.3 9.7
Net purchased electricity 1.4 -0.5

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 0.3 5.1
Kitchen Refrigerator 0.6 1.9
Garage Refrigerator 0.5 3.5
Whole House Fan 0.1 1.7
Lighting, plug loads and other 0.9 12.7
Plug-in Hybrid Automobile Charge 0.0 0.1

Gas Consumption (ft3)

Avg

Total
Instantaneous DHW 0.0 0.0
Clothes Dryer 0.0 1.0
Range/Oven 0.0 0.5
Furnace 0.0 0.0

Indoor Conditions

Avg

Min/Max
Thermostat Temp (F) 79.3 78.3/ 80.3
Thermostat RH (%) 45.1 42.8/ 47.2
Tile Floor Temp (F) 73.7 72.7/ 75.1

Weather Conditions & Other

Avg/Total

Min/Max
Ambient Temp (F) 32767.0 99999.0/ -99999.0
Ambient RH (%) 2.9 1.9/ 3.8
Horz. Plane Irradiation (wh/m2) 7.5 0.1/ 1.0
PV Plane Irradiation (wh/m2) 5372.2 0.0/ 828.1
Ground Temp @ 1ft (F) 85.1 76.0/ 95.9
Garage Temp (F) 82.6 78.7/ 88.7
Attic Temp (F) 88.8 80.3/ 104.1
Hot Water Consumed (Gal) 62.3 0.1/ 8.4
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