12
ENERGY EFFICIENCY
Increasing energy efficiency is the most important objective for an effective reduction of Operating Expenses for all IT
critical applications such as Data Centers, characterized by early years of life with lower and variable load levels over
time, usually less than 50 %.
The Legrand UPS solutions respond to the needs for different availability and evolution of the IT infrastructure, thanks
to the careful study and use of the latest generation components, which allow the achievement of high efficiency values
from lower power levels.
Indeed, starting from a load from 20 % to 50 %, the efficiency curve reaches its maximum range, up to 96.6 % efficiency.
Legrand UPS solutions ensure high energy savings starting from low load percentages, typical for this sector, which
results into a reduction of carbon dioxide produced, an operating costs saving, allowing a faster return on investments.
In the market is it possible to find many solutions to increase efficiency even over 97 %. It is important in TCO evaluation,
to check in which operating mode UPS can reach these high efficiency levels. As indicated before in “Continuity” chapter
of this document, it is important to check also the protection level and evaluate, when is acceptable to reduce the
protection in order to have higher efficiency or when is preferred to have less efficiency but higher protection. It is
probable that avoiding the cost of a down time can justify a little increase of the TCO.
TOTAL COST OF OWNERSHIP
OPTIMIZED EFFICIENCY
CURVE
• Maximum values between
25 % and 50 %
• Normally, in IT
applications, load is less
than 50 %
Legrand UPS’ energy savings at low load percentages
