Credit 7: Energy Supply Efficiency
Intent
Reduce the total non-renewable source energy required for the facility
through increased energy supply efficiency.
Requirements
Calculate the total annual non-renewable source energy requirements
for the facility as designed, using the calculated site energy requirements
and the source conversion values provided in the table below. Calculate
the percentage reduction in the total annual non-renewable source
energy, achieved through the use of combined heat and power systems,
or other methods of cascading energy recovery of primary fuel supplies.
Fuel Type
|
Site (kBTU)
|
Source (kBTU)
|
Electricity
|
1
|
3.013
|
Natural gas
|
1
|
1.024
|
Fuel Oil
|
1
|
1
|
Steam
|
1
|
1.38
|
Hot Water
|
1
|
1
|
Local air emissions regulations must be met. This credit cannot
be applied for fuel switching without the use of energy generation
equipment.
Credit 7.1 (1 point) Reduce source energy use by at least 10%
Credit 7.2 (2 points) Reduce source energy use by at least 20%
Credit 7.3 (3 points) Reduce source energy use by at least 30%
Credit 7.4 (4 points) Reduce source energy use by at least 40%
Credit 7.5 (5 points) Reduce source energy use by at least 50%
Technologies & Strategies
Increased supply efficiency, such as through cascading heat use/recovery
leads to higher overall supply efficiency, as in the case of heat
recovered from electricity generation to generate hot or cold thermal
distribution fluids.
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