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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 periodically by two children in college. Energy consumption is offset by a 6.5 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 plug-in hybrid vehicle (Chevy Volt) was added to the house load. Additionally, a 2nd hybrid vehicle (Ford Cmax) was added in August 2014.Data collection began in November 2010.

Mar 21 2017, 00:15 -To- Mar 22 2017, 00:00 EST

Total Electric Energy Use

Peak kW

kWatt-hrs
Consumption from utility 5.4 22.1
PV production 3.9 28.3
Fed back to Utility 3.7 21.4
PV used by house 3.4 7.0
Net purchased electricity 5.4 -6.2

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 1.6
Garage Refrigerator 0.2 1.2
Whole House Fan 0.0 0.1
Lighting, plug loads and other 3.7 14.6
Plug-in Hybrid Automobile Charge 1.4 4.7

Gas Consumption (ft3)

Avg

Total
Instantaneous DHW 0.0 0.0
Clothes Dryer 0.1 2.5
Range/Oven 0.0 1.0
Furnace 0.0 0.0

Indoor Conditions

Avg

Min/Max
Thermostat Temp (F) 73.1 72.0/ 74.6
Thermostat RH (%) 50.3 44.8/ 54.3
Tile Floor Temp (F) 69.5 68.5/ 70.3

Weather Conditions & Other

Avg/Total

Min/Max
Ambient Temp (F) 32767.0 99999.0/ -99999.0
Ambient RH (%) 30.1 0.8/ 58.6
Horz. Plane Irradiation (wh/m2) 0.4 0.0/ 0.1
PV Plane Irradiation (wh/m2) 6211.5 0.0/ 851.4
Ground Temp @ 1ft (F) 76.6 66.6/ 92.5
Garage Temp (F) 70.7 63.1/ 81.7
Attic Temp (F) 73.5 61.3/ 93.0
Hot Water Consumed (Gal) 366.0 0.0/ 52.0
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