Environmental Performance Criteria 2.2
Energy & Atmosphere

Sustainable Sites

Water Efficiency

Energy & Atmosphere

Materials & Resources

Indoor Environmental Quality

Innovation & Design Process

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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