Completed Projects

NEW CONSTRUCTION

Housesq. feetYear BuiltConstruction TypeBuilderUtilityChallengesSolutionsResults

Byron Woods

3450

2008

ICF

Hovis Custom Builders

Clay

3 story
50 windows

single 3 ton geothermal 4 zones desuperheater heat pump water heater spray foam insulation factory tinted windows CFL lights

Average light bill <$100

Housesq. feetYear BuiltConstruction TypeBuilderUtilityChallengesSolutionsResults

Julington Woods

3931

2011

ICF

Hovis Custom Builders

JEA

2 story
small rooms
walk-in closets

single 3 ton Trane 20i heat pump 4 zones desuperheater heat recovery domestic water preheater

Average light bill: $130

RETROFITS

Housesq. feetYear BuiltConstruction TypeBuilderUtilityChallengesSolutionsResults

Harbor Acres

2660

1962

Frame

 

JEA

very loose construction extremely leaky ductwork difficult to access

spray foam insulation smoke test

29.7% reduction in energy usage reduced air leakage by 20% better humidity control

Housesq. feetYear BuiltConstruction TypeBuilderUtilityChallengesSolutionsResults

Deerwood Builder's Model

3606

2003

Frame & Brick

 

JEA

high air leakage failing heat pumps high pool pump usage oversized systems undersized ductwork

Replaced 2 heat pumps totalling 7 tons with single 5 ton system and 4 zones New ducts desuperheater Variable speed pool pump spray foam insulation CFL bulbs

46% reduction in light bill overall increased in home comfort

Housesq. feetYear BuiltConstruction TypeBuilderUtilityChallengesSolutionsResults

Julington Creek

1983

1997

Frame

 

JEA

home office West facing glass in FL room many incandescent bulbs

Replaced 3.5 ton single stage SEER 10 heat pump with 3 ton two stage SEER 16 Heat pump water heater Window film on West glass CFL light bulbs

42.6% reduction light bill Quiter system more even temperatures throughout the home

Housesq. feetYear BuiltConstruction TypeBuilderUtilityChallengesSolutionsResults

Net Zero Partner

Jacksonville Beach

Photovoltaic Panels

2537

1983

Frame

 

FPL

two story limited room for duct work

Closed cell spray foam in attic Replaced 3 ton system withw 2 ton two stage with 3 zones added/upgraded duct work

zero electricity usage throughout Spring 2012 Tighter temperature and humidity control

Housesq. feetYear BuiltConstruction TypeBuilderUtilityChallengesSolutionsResults

Northside Energy Star

1653

2010

Frame

 

JEA

Undersized and restricted return air path

corrected air return path retrofitted heat pump and water heater CFL lamps

35.8% reduction light bill quieter system

Housesq. feetYear BuiltConstruction TypeBuilderUtilityChallengesSolutionsResults

Timberlin Parc

2881

1999

Frame

 

JEA

Severely restricted duct work oversized system pool pump

Spray foam attic insulation reduced system tonnage from 5 to 3 4 heating and cooling zones desuperheater heat recovery variable speed pool pump CFL lighting

56.2% recuction in light bill Quieter, more comfortable home better humidity control

Housesq. feetYear BuiltConstruction TypeBuilderUtilityChallengesSolutionsResults

Royal Lakes "Energy Hog"

2464

1976

Frame

 

JEA

very loose construction difficult to air seal 2nd floor joist system leaks outdoors

variable speed pool pump heat pump water heater

22.3% reduction in energy usage

Housesq. feetYear BuiltConstruction TypeBuilderUtilityChallengesSolutionsResults

San Jose Forest

2185

1985

Frame

 

JEA

attic air handler very leaky ducts including wall cavity returns pool and skimmer pum[s

Replaced heat pump with Carrier Infinity SEER 19 and duct system Added zoning Added second thermostat in master suite

23.7% reduction in energy usage even temperatures throughout the home