| Articles & Case Studies |
ESI and others have
documented various Synergy System projects. This page presents some of them.
| Spence Lane Office Building
Case Study: Heating and Cooling this Energy Miser Costs a Fraction of
the Norm |
1. Tennessee Valley
Authority (TVA) analysis of the Spence Office Building, located at 640 Spence
Ln., Nashville, Tennessee. This analysis compares space conditioning energy
use between the Spence Office Building and thirteen other buildings in Tennessee
of similar size and use.
Results
The TVA analysis concluded that the calculated average energy use of the
space conditioning (HVAC) systems in the 13 conventional buildings was 64,347
Btu/Sq. Ft./Year. This compares to 16,812 Btu/Sq. Ft./Year for the Spence
Office Building.
At $.055 per kilowatt hour, the difference between 64,347 and 16,812 Btu/Sq.
Ft./Year amounts to $.766/Sq. Ft./Year in energy savings. The 16,812 Btu/Sq.
Ft./Year includes the energy used to heat and cool a computer facility occupying
about 4% of the building's space. The metered power use of the building's
space conditioning (HVAC) system was 11,885 Btu/Sq. Ft./Year.
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| Utility Bills Cut at
Senior Center: Danville-Boyle County Senior Citizens Center versus Generations
Senior Center |
This is a direct comparison
of energy use between two Senior Citizens Center of the same size at approximately
10,000 square feet. Both are located near each other in Danville and Winchester,
KY.
This comparison uses 12 months of utility data starting in March 1993.
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The Generation
Senior Center,
10,416 square feet,
Winchester, KY |
Our Building:
The Danville-Boyle County Senior Citizens
Center,
9,796 square feet,
Danville, KY |
| Total Gas Use: |
548,400 cubic
feet
(559 million BTU) |
132,600 cubic
feet
(135 million BTU) |
| Total Electric
Use: |
133,080 KWH
(454 million BTU) |
47,339 KWH
(162 million BTU) |
| Total Energy
Use: |
1,013 million
BTU |
297 million
BTU |
| Max. Peak Demand: |
60.8 KW |
24 KW |
| Total Energy Cost: |
$9,535.32 |
$3,569.50 |
Energy use for HVAC and Water Heating System only (for Danville Center)
| Total Gas Use: |
137,840 cubic
feet
(140.6 million BTU) |
| Total Electric
Use: |
14,416 KwH
(49.2 million BTU) |
| Total Energy
Use: |
189.8 million
BTU |
| Total Energy
Cost: |
$1,542
($128.50 monthly average) |
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| "Putnam County School
Administration Building versus PLM Office Building Comparison Study" |
This is an energy
use comparison using 12 months of utility data. Both of these buildings are
located in Cookeville, TN and are both two story office buildings.
Results 1988-1989
PLM Office Building total annual energy cost is 34 cents per square
foot.
Putnam County Adm. Building total annual energy cost is $ 1.01 per square
foot.
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