CARLO GAVAZZI VMU-C EM, Instruction Manual

Page: 109 / 126

VMU-C
VMU-C Instruction manual 109
9
ECONOMIC ANALYSIS
This section is devoted to the economic analysis of the installation. It allows to calculate
the costs of the consumed AC energy.
Clicking on the “Economy” icon in the Navigation menu will grant access to the relevant
content .
Economic analysis
As soon as the user accesses the page, the chart displays, for the current month (with a
daily resolution), the total cost in € of the amount of energy consumed, taking into
account the two tariffs (T1 and T2) previously set by the user. To select another month or
a yearly time interval, use the dark grey section on top and press the “Refresh chart”
button.
The chart displayed above provides 4 different selections (Section “A”), referring to the
total energy consumption in the selected month, or just to the active or reactive energy. A
further selection is also available to display, for each tariff, the date on which the highest
consumption has occurred.

Total : each histogram represents the total consumption (for each tariff) of the
day. The value takes into account both the consumed active energy value (kWh)
and the reactive component (kvarh). The fixed monthly cost is also considered in
calculating the daily values.

kWh : each histogram represents the total consumption (for each tariff) of the day.
The value only takes into account the consumed active energy value (kWh).

kvarh : each histogram represents the contribution (for each tariff) due to the
reactive energy (kvarh) injected into the network for the day.

kWmax : this chart allows to identify the day of the month in question on which the
maximum power absorption (kWmax for each time band) has occurred. This
value is only displayed in case it should exceed the contract power threshold