Civil Engineering Reference
In-Depth Information
Table 6.1
Nomenclature
Variables
Description
t
time
e, E
exported energy
d, D
delivered energy (by the grid)
ne
net exported energy
g
on-site generation
g
net
net on-site generation
g
gross
gross on-site generation
s
c
charging storage energy
s
dc
discharging storage energy
S
storage energy balance
U
s
internal storage energy
T
evaluation period
τ
1
start of the evaluation period
τ
2
end of the evaluation period
w
weighting factor
l
load
l
net
net load
l
gross
gross load
ζ
energy losses
ζ
g
generation energy losses
ζ
s
storage energy losses
ζ
sys
building technical systems energy losses (excluding storage)
ζ
l
load energy losses (e.g., distribution losses)
BTS
building technical systems
E
des
design/required connection capacity
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