UPS + lithium battery energy storage technology will quickly deploy data
centers. As lithium battery UPS technology matures and improves and costs are
increasingly optimized, data center UPS will quickly complete the conversion
from lead-acid batteries to lithium batteries, and the trend of data center UPS
switching to lithium batteries will become even more rapid.
UPS + lithium battery energy storage technology will quickly deploy data
centers. As lithium battery UPS technology matures and improves and costs are
increasingly optimized, data center UPS will quickly complete the conversion
from lead-acid batteries to lithium batteries, and the trend of data center UPS
switching to lithium batteries will become even more rapid. The UPS + lithium
battery energy storage solution improves the reliability of the data center. The
lithium battery energy storage system is likely to become a standard product in
the data center market.
Battery development history:
In the data center, we use a large number of lead-acid maintenance-free
batteries as UPS backup energy storage. As the last line of defense for power
supply in the data center, the safety of all loads depends on the reliability of
the battery. However, in actual applications, we found that more than 30% of
data center load outages are caused by battery failure.
The development of lead-acid battery technology is very slow, and there are
basically no major breakthroughs. For all data center managers, lead-acid
batteries are always a troublesome fact that they have to face. It has very
strict requirements for application scenarios: the ambient temperature cannot be
too low or too high; the battery is afraid of frequent discharge or never
discharge; it cannot be quickly charged or discharged quickly during use; a
separate battery room is required to avoid acidification. Fog corrodes other
equipment, the battery occupies a huge space, and the floor load-bearing
requirements are extremely high.
With the increasing improvement of the mains power supply environment and
the highly redundant design of the data center power supply system, the battery
supporting the UPS rarely really discharges. New energy storage batteries
represented by lithium-ion batteries have occupied more than 90% of the market
in consumer electronics. With the rapid development of the electric vehicle
industry, the cost of lithium batteries today has dropped by 70% compared to
five years ago. A global data center survey shows that 10% of data centers have
adopted lithium battery UPS as backup energy. It is expected that the average
annual growth rate of lithium batteries will exceed 100% in the next three
years.
Application of lithium battery UPS in global data centers:
South Korea
In South Korea, thanks to the promotion of lithium battery manufacturers
such as Samsung/LG/SK, lithium batteries have long been widely used in UPS
energy storage and data centers. It is understood that nearly 80% of newly built
data center UPS in South Korea use lithium Battery. In 2012, the world's first
lithium battery data center, Shinhan Bank, was put into use. It used 34
Schneider Electric 500KVAUPS and more than 10,000 Samsung lithium batteries. So
far, there have been no battery failures.
Japan, Singapore, Hong Kong
In areas such as Japan, Singapore, and Hong Kong, where land is at a
premium, users are more concerned about the space and weight of batteries. Since
the energy density of lithium batteries is several times that of lead-acid
batteries, their floor space is reduced by 60% compared with lead-acid
batteries. % or more, the valuable computer room space saved can be used to
place server cabinets and rent them out for profit. At the same time, lithium
batteries are more than 70% lighter than lead-acid batteries, so they can
greatly reduce the load-bearing pressure on the floor. For data equipment rooms
converted from office buildings, the cost of load-bearing transformation can be
greatly reduced.
India
In India, due to the unstable mains power supply, batteries are often
charged and discharged, and the ambient temperature is high. Ordinary lead-acid
batteries need to be replaced every 2 to 3 years. However, after using lithium
battery UPS, it has stronger adaptability to high temperatures and can survive
discharge. It can be recharged quickly and has four times more cycles than
lead-acid batteries. Therefore, in a price-sensitive market like India, even
though the price of lithium batteries is more than twice that of lead-acid
batteries, they are still widely recognized by users and consulting
companies.
North American market
In the North American market, customers pay more rational attention to the
TCO (total cost of ownership) of the data center, because compared to the
initial purchase price of the hardware, the later maintenance and replacement
costs (OPEX) of the equipment are more expensive. The design life of data center
UPS is usually more than 10 years. Although the supporting lead-acid battery has
a nominal design life of 10 years, it usually needs to be replaced every 5 to 6
years because the lead-acid battery loses its usage capacity in the later stages
of use. There will be a cliff-like drop, and the lead-acid battery will be
declared scrapped when the remaining capacity reaches 80%.
Even after 10 to 15 years of use, the remaining capacity of lithium battery
UPS still reaches more than 80%. Its capacity attenuation is an approximately
linear gradient process. We recommend that lithium batteries can be used to at
least 70% of their capacity. In view of the long-life design and high cycle
number of lithium batteries, they do not need to be replaced during the 10-year
life cycle of the UPS, while lead-acid batteries must be replaced at least once.
This alone can offset the cost pressure of less than 2 times the cost of lithium
batteries. Lithium batteries do not require these complex maintenance
operations, so users can reduce operating costs.
China
In China, the trend of UPS switching to lithium batteries will become even
more rapid. The lithium battery industry uses highly automated production lines,
and production capacity determines costs. This is an almost winner-takes-all
industry. As the world's largest lithium battery producer, various manufacturers
have been vigorously expanding production in recent years, but the result is
serious overcapacity in the entire industry. As the Chinese government's
subsidies for electric vehicles are gradually reduced, lithium battery UPS power
supplies The industry urgently needs to explore new application growth points,
such as wind and solar energy storage, power grid frequency and peak regulation,
communication power supply, UPS backup battery, etc., which will become the new
favorites of the lithium battery market.
UPS + lithium battery energy storage technology will quickly deploy data
centers
It will become a trend to use lithium battery energy storage in data center
power supply systems. Currently, for the data center industry, it is
particularly important to maximize the use of existing space and minimize
operating expenses, especially UPS power cooling energy consumption, battery
maintenance and battery replacement service costs. Lithium batteries have become
the key to solving these problems because of their excellent performance. The
UPS lithium battery energy storage method may have a greater impact on the
future data center industry, because more and more enterprises hope to adopt an
architecture based on open computing, and they will specify the use of lithium
batteries as the power supply for servers in the rack. power supply unit.
It can be seen that it is inevitable that the entire UPS industry will use
lithium batteries to completely replace lead-acid batteries. It is only a matter
of time. As the largest energy storage component in the data center, the safety
of lithium batteries is very important. In the future, UPS + lithium battery
energy storage technology will be rapidly deployed in data centers.
The safety of lithium batteries largely depends on the following four
points. It is recommended that users pay attention to them when selecting:
1. High-quality battery production and quality control
2. Perfect BMS design
3. Chemical materials of lithium batteries
4. Compatibility test of lithium battery and UPS
Summary: As lithium battery UPS technology matures and costs are
increasingly optimized, data center UPS will quickly complete the conversion
from lead-acid batteries to lithium batteries, which will allow data center
managers to re-plan the layout of gray areas and white areas. This ebb and flow
trend has forced most lead-acid battery factories to partially transform to
produce lithium batteries, because this revolution in energy storage technology
has put fatal pressure on the entire lead-acid battery industry. If they do not
transform, they will be eliminated. .
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