Civil Engineering Reference
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Table 42 Case 2
—
Structural model 1 type on-grid
Energy used
(kWh/
m
2
year)
Delivered
energy (kWh/
m
2
year)
fp.
ren
Ep.ren
(kWh/
m
2
year)
fp.
nren
Ep.nren
(kWh/
m
2
year)
fp.
tot
Ep.tot
(kWh/
m
2
year)
Electrical
40.00
PV
58.46
1.00
58.46
0.00
0.00
1.00
58.46
CHP unit
5.36
0.00
0.00
1.10
5.90
1.10
5.90
Thermal
110.00
ST
50.29
1.00
50.29
0.00
0.00
1.00
50.29
CHP
16.07
0.00
0.00
1.10
17.68
1.10
17.68
Back-up
45.45
0.00
0.00
1.10
50.00
1.10
50.00
Exported
energy
On site
23.82
0.20
4.76
2.30
54.79
2.50
59.55
Energy performance indicator of building
Ep.
ren
Ep.
nren
Ep.
tot
103.99
18.78
122.77
Renewable energy ratio
RER
%
−
−
−
84.70
Fig. 48 Renewable energy ratio of the structural models
Evaluation at the couple building-system level for the set of potential structural
models (from model 1 to model 6) if the mCCHP system work off-grid. showed as
in terms of renewable energy ratio the model 1 is the best. The share of renewable
energy for these models is shown in Fig.
48
.
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