Part 13.6 Whole-of-home energy usage

(1) This Part applies to—

1. a Class 1 building; and
2. a Class 10a building with a conditioned space.

(2) Part 13.6 must be applied as directed in H6D2(2).

(1) The net equivalent energy usage of a building, calculated in accordance with (a), must not exceed the allowance calculated in accordance with (b)—

1. $(A\times E_E)+E_P+E_S-E_R$

   , where—

   1. $A$

      = the floor area factor obtained by multiplying the total floor area of the building by the adjustment factor in Table 13.6.2a; and

   2. $E_E$

      = the main space conditioning and main water heater efficiency factor obtained from the ABCB Standard for Whole-of-Home Efficiency Factors; and

   3. $E_P$

      = the swimming pool pump energy usage in (2); and

   4. $E_S$

      = the spa pump energy usage in (3); and

   5. $E_R$

      = the installed capacity of on-site photovoltaics (kW); and

2. $A\times E_F$

   , where—

   1. $A$

      = the floor area factor obtained from multiplying the total floor area of the building by the adjustment factor in Table 13.6.2a; and

   2. $E_F$

      = the energy factor obtained from in Table 13.6.2b.

1. $E_P$

   = the swimming pool pump energy usage; and

2. $V$

   = the volume of the swimming pool to the nearest 1000 litres; and

3. $F_P$

   = the swimming pool pump factor as per Table 13.6.2c.

1. $E_S$

   = the spa pump energy usage; and

2. $V$

   = the volume of the spa to the nearest 100 litres; and

3. $F_S$

   = the spa pump factor as per Table 13.6.2d.

   Total floor area m2	Floor area factor	Total floor area m2	Floor area factor	Total floor area m2	Floor area factor	Total floor area m2	Floor area factor
   <50	0.0123	160–169	0.0097	280–289	0.0087	400–409	0.0080
   50–59	0.0119	170–179	0.0096	290–299	0.0086	410–419	0.0079
   60–69	0.0116	180–189	0.0095	300–309	0.0085	420–429	0.0079
   70–79	0.0113	190–199	0.0094	310–319	0.0085	430–439	0.0078
   80–89	0.0111	200–209	0.0093	320–329	0.0084	440–449	0.0078
   90–99	0.0108	210–219	0.0092	330–339	0.0083	450–459	0.0077
   100–109	0.0106	220–229	0.0091	340–349	0.0083	460–469	0.0077
   110–119	0.0105	230–239	0.0090	350–359	0.0082	470–479	0.0077
   120–129	0.0103	240–249	0.0090	360–369	0.0082	480–489	0.0076
   130–139	0.0101	250–259	0.0089	370–379	0.0081	490–499	0.0076
   140–149	0.0100	260–269	0.0088	380–389	0.0081	500	0.0075
   150–159	0.0099	270–279	0.0087	390–399	0.0080	—	—

   Table Notes

   1. The total floor area is measured within the inside face of the external walls of the Class 1 building and includes any conditioned, attached Class 10a building.
   2. Where values fall between ranges given, the floor area must be rounded up to the nearest whole square metres of floor area.

   Climate zone	ACT	NSW	NT	Qld	SA	Tas	Vic	WA
   1	—	—	1.91	2.77	—	—	—	3.25
   2	—	1.32	—	1.78	—	—	—	—
   3	—	—	1.23	2.46	—	—	—	2.87
   4	—	1.80	—	—	1.86	—	1.25	2.34
   5	—	1.75	—	2.28	1.79	—	—	2.35
   6	—	2.40	—	—	2.51	—	1.63	3.20
   7	2.56	2.33	—	—	—	3.08	1.62	—
   8	—	3.99	—	—	—	3.92	2.82	—

   Pool pump GEMS star rating	ACT	NSW	NT	Qld	SA	Tas	Vic	WA
   1 or unrated	0.056	0.060	0.028	0.046	0.068	0.061	0.049	0.063
   1.5	0.048	0.050	0.023	0.039	0.057	0.052	0.041	0.053
   2	0.041	0.044	0.020	0.034	0.050	0.045	0.036	0.046
   2.5	0.037	0.039	0.018	0.030	0.044	0.040	0.032	0.041
   3	0.033	0.035	0.016	0.027	0.039	0.035	0.028	0.036
   3.5	0.029	0.031	0.014	0.024	0.035	0.032	0.025	0.033
   4	0.026	0.028	0.013	0.021	0.032	0.029	0.023	0.029
   4.5	0.024	0.025	0.012	0.019	0.029	0.026	0.021	0.027
   5	0.022	0.023	0.011	0.018	0.026	0.023	0.019	0.024
   5.5	0.020	0.021	0.010	0.016	0.023	0.021	0.017	0.022
   6	0.018	0.019	0.009	0.014	0.021	0.019	0.015	0.020
   6.5	0.016	0.017	0.008	0.013	0.019	0.017	0.014	0.018
   7	0.014	0.015	0.007	0.012	0.017	0.016	0.012	0.016
   7.5	0.013	0.013	0.006	0.010	0.015	0.014	0.011	0.014
   8	0.011	0.012	0.006	0.009	0.014	0.012	0.010	0.013
   8.5	0.010	0.011	0.005	0.008	0.012	0.011	0.009	0.011
   9	0.009	0.009	0.004	0.007	0.011	0.010	0.008	0.010
   9.5	0.008	0.008	0.004	0.006	0.009	0.008	0.007	0.009
   10	0.007	0.007	0.003	0.005	0.008	0.007	0.006	0.007

   Spa pump GEMS star rating	ACT	NSW	NT	Qld	SA	Tas	Vic	WA
   All types	0.067	0.071	0.033	0.055	0.081	0.073	0.058	0.075