Let Us Evaluate Cost

 

HIGH PERFORMANCE INSULATION AND VENTILATION PACKAGE

(Calculations - Chart 6)

COST OF PACKAGE
Insulation - Spray foam I.L.O fiberglass $11,483
Windows - Triple paned I.L.O. double pane 685
Additional foil-faced Isocyanurate board 1,850
Full under slab insulation 1,597
Energy recovery ventilation system 3,630

Total High Performance Package

$19,245


YEARLY CASH FLOW ANALYSIS FOR HIGH PERFORMANCE PACKAGE
Annual electric savings at .135 KWH $1,485
$19,248 high performance package cost x 6% mortgage interest home loan rate per year -1,155
Home loan interest tax deduction benefit for a 25% tax bracket 288

Savings per year for home owner

$618

 


 

PASSIVE SOLAR HEATING AND COOLING

(Calculations - Chart 3 and Chart 6)

COST OF SYSTEM 
Optional earth sheltering 0
High mass construction 0
Passive cooling system 0
Additional south glass 855
Interior insulated shuttter 3,256
Automatic shutter operation 1,724
Solar control light damns 605
Credit for standard interior window coverings -1,258

Total passive solar heating and cooling

$5,182

 

YEARLY CASH FLOW ANALYSIS FOR PASSIVE SOLAR
Annual electric savings at .135 KWH $685
$5,182 package cost x 6% mortgage interest home loan rate per year -311
Home loan interest tax deduction benefit for a 24% tax bracket 78

Savings per year to homeowner

$452

 


 

ACTIVE SOLAR THERMAL HEATING SYSTEM

(Calculations - Chart 3)

COST OF SYSTEM
(5) 4' x 10' collectors, water storage, and controls $  22,990

YEARLY CASH FLOW ANALYSIS
Annual electric savings at .135 KWH $  711
$22,990 active solar cost x 6% home mortgage added interest per year -1,379
Home loan interest tax deduction benefit 345

Additional cost per year to home owner

$ 323

 


  

PHOTOVALTAIC (PV) SOLAR SYSTEM 2.5 KW

(Calculations - Chart 5)

COST OF SYSTEM
2.5 KW South 6:12 roof mount $21,178

YEARLY CASH FLOW ANALYSIS
Annual electric savings at .135 KWH $ 515
$21,178 PV system cost x 6% home mortgage added interest per year -1,271
Home loan interest tax deduction benefit for a 25% tax bracket 318

Additional cost per year to home owner

$ 438

 


  

COST OF OWNERSHIP SUMMARY

SUNTERRA'S NET ZERO ENERGY HOME

ANNUAL CASH FLOW

High performance insulation and ventilation package $618
Passive solar heating and cooling   452
Active solar thermal heating system - 323
PV 2.5 KW electric generation system - 438

Yearly savings to live in your SunTerra net zero energy home

$309

 


 

AVAILABLE TAX CREDIT FOR THIS HOME
FEDERAL STATE UTILITY CO
Insulation Package ? ?
Passive Solar ? ?
Thermal Solar 6,897 ? ?
Photovoltaic Solar System 6,353 ? ?
Efficient Lighting and Appliances ? ?

NOTE:  Only the federal tax credit is listed above based on cost of active solar in this case study.  State and utility company programs vary per location and choice of energy savings features.  Consider these benefits:

  1. $68,595 additional home value built into this net- zero energy home, which you pay less to live in than a standard energy-gluten home.
  2. $309 savings per year while you enjoy the comfort and satisfaction of conserving and producing your own energy.
  3. $13,250 minimum cash back off your federal tax debt.
  4. $________ cash back off your state tax debt.
  5. $________ cash back rebate from your utility company.

 Why are not all homes built to this standard?


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ZERO ENERGY HOME PATH

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