Specifications

7
ENERGY COSTS
Particular attention has been paid with the latest generation static UPS, to both the energy absorbed from mains and the power supplied
to the user.
This is because energy waste is mainly caused by the overall e ciency of the system.
Firstly, increasing the e ciency means reducing that part of the power absorbed by the UPS not supplied to the load, but transmitted
to the surrounding environment in the form of heat. The choice of a UPS system with over 93% AC/AC e ciency therefore allows energy
consumptions to be immediately reduced in a signi cant way since, besides improving the quality of the environment for both the
machines and the people who work there, the lower amount of heat dissipation in the installation site means that there is less need for
using ventilation and air conditioning systems.
The majority of the UPS systems available on the market are not modular and cannot be expanded. This means that the system must be
oversized at the start so as to allow for future expansions (which may not even be required). It also means that much of the investment in
the UPS could go to waste.
Conventional UPS installations in the redundant parallel con guration supply not over then 50% of their power. This means less e ciency
than in full load conditions. With TRIMOD modular systems, several power modules are con gured in parallel, for instance, three small
modules instead of two large stand-alone systems. This con guration is equally redundant, but with the advantage of being more e cient
and able to save more energy.
Savings relating to the in e ciency delta:
1 year = € 1.247
5 years = € 6.236
8 years = € 9.978
MAINTENANCE COSTS
It is much more expensive and not so fast to mantain a conventional UPS system, with its larger size and higher number of spare parts than
a modular one.
The maintenance costs of a modular system can even be as much as 30% less than those of a conventional system since the modules are
standardized (one spare module will cover all needs), small and easily replaceable. This speeds up all repairs since the faulty module can
just be replaced during the  rst intervention without even having to interrupt the service.
One 30 kVA Trimod UPS unit
Load powered 16 kW
Trimod 1 UPS type 24 kW Tot. 24 kW
Redundancy level N+1
E ciency of the System = 0,93
In Power 17,20 kW
Out power 16 kW
E ciency delta 1,20 kW
Two 20 kVA conventional UPS units
Load powered 16 kW
UPS 2 UPS type 16 kW Tot. 32 kW
Redundancy level N+1
E ciency of the System = 0,87
In Power 18,39 kW
Out power 16 kW
E ciency delta 2,39 kW
kVA kWatt
UPS 30 24
Load used 67% 16
0,93
UPS Losses kW 1,20
Total Losses in one year (kWh) 10,550
UPS Running Cost 1 year € 1,266
UPS Running Cost 5 year € 6,330
UPS Running Cost 8 year € 10,128
kVA kWatt
UPS 40 32
Load used 50% 16
0,87
UPS Losses kW 2,39
Total Losses in one year (kWh) 20,943
UPS Running Cost 1 year € 2,513
UPS Running Cost 5 year € 12,566
UPS Running Cost 8 year € 20,106