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BA Benchmark

Region Standard

Builder Standard

BA Prototype

(kWh)

(therms)

(kWh)

(therms)

(kWh)

(therms)

(kWh)

(therms)

11,225 2,732 4,837

0 0 0

11,286 2,432 4,838 3,110

0 0 0

11,286 2,432 4,838 3,110

0 0 0

4,397 902 1,351

0 0 0

3,110

1,204

7,646 400

0

7,646 400

0

7,646 400

0

7,436 400

0

29,950 0

0 0

29,712 0

0 0

29,712 0

0 0

15,690 7,402

0 0

29,950

0

29,712

0

29,712

0

8,289

0

Net Energy Use

Reporting Energy Use, Energy Savings, and Cost Neutrality

Reporting energy use and energy savings in a consistent format is an important component of Building America analysis. The following tables shall be supplied with the analysis report for every Building America Prototype.

Table 28 shows an example of a site energy consumption report for a hypothetical Prototype, along with all relevant base cases. Similar information based on source energy is presented in Table 29, along with percent energy savings for each end use. End uses are described in more detail in Table 30.

Table 28. Example Summary of Site Energy Consumption by End Use Using

BA Research Benchmark

Annual Site Energy

End Use Space Heating Space Cooling DHW Lighting

Appliances & MELs OA Ventilation

Total Usage Site Generation

Benchmark

Region

Builder

Proto

BA

Reg

Bldr

BA

Reg

Bldr

End Use

(MBtu/yr)

(MBtu/yr)

(MBtu/yr)

(MBtu/yr)

Base

Base

Base

Base

Base

Base

Space Heating

115

116

116

45

61%

61%

61%

23%

23%

23%

Space Cooling

28

25

25

9

67%

63%

63%

6%

5%

5%

DHW

50

50

50

14

72%

72%

72%

12%

12%

12%

Lighting

32

32

32

12

61%

61%

61%

6%

6%

6%

Appliances & MELs

78

78

78

76

3%

3%

3%

1%

1%

1%

OA Ventilation

4

4

4

4

0%

0%

0%

0%

0%

0%

Total Usage

307

304

304

161

48%

47%

47%

48%

47%

47%

Site Generation

0

0

0

-76

25%

25%

25%

Net Energy Use

307

304

304

85

72%

72%

72%

72%

72%

72%

Table 29. Example Summary of Source Energy Consumption by End Use Using BA Research Benchmark

Estimated Annu

al Source Energy

Sou Percent of End

rce Energy Savings

Use

Percent of Total

49

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