 |
|
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:
- $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.
- $309 savings per year while you enjoy the comfort and satisfaction of conserving and producing your own energy.
- $13,250 minimum cash back off your federal tax debt.
- $________ cash back off your state tax debt.
- $________ cash back rebate from your utility company.
Why are not all homes built to this standard?
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