Modern society cannot exist without the exchange of data and information.
The facilities that process, store, and manage this data are “data centers.
Data centers play a central role in companies and services, handling vast amounts of data efficiently and securely.
However, for data centers to continue to operate stably, a stable power supply is essential.
Storage batteries” are an important element of this power supply.
Data center operations and power supply
Data centers must operate 24 hours a day, 365 days a year.
Therefore, power supply is a critical factor.Power outages and power supply instability can cause data loss and service downtime (outages).Not only is data center equipment expensive, but its reduced uptime is a major loss to the enterprise.
In addition, the energy consumption of data centers is so high that a sustainable power supply is required.For these reasons, the stability and efficiency of the power supply is one of the most important factors in data center design.
Role of storage batteries
Storage batteries play an important role in supporting the stability of the power supply. Their advantages are particularly demonstrated in the following situations
1．Backup power supply in case of power failure
Data centers must remain operational in the event of a power outage.Storage batteries are used as backup power sources that can immediately supply power in the event of a power failure.
This allows the data center to continue operations without having to wait for generators to start up.
2．Peak Shift and Electricity Rate Optimization
Storage batteries are also used to provide power during peak periods and to reduce power consumption during periods of high electricity prices.By recharging power in storage batteries and using that power during peak hours, the cost of electricity rates can be reduced.
This allows for a reduction in operating costs.
3．Linkage with Renewable Energy
Cooperation with renewable energy sources (solar and wind power) is also important.Since the amount of electricity generated by renewable energy sources fluctuates depending on the weather and time of day, storage batteries can be used to absorb these fluctuations.
Power can be stored in storage batteries and released when demand increases or power generation is low, supporting stable operation of the data center.
Storage Battery Selection Criteria and Issues
There are several important criteria for selecting storage batteries to be installed in a data center, the first being capacity.
Depending on the size of the data center and the required backup time, an appropriate capacity should be selected.The second is durability and longevity. This is because storage batteries are required to be operated for a long period of time, so it is important to select highly durable ones.
Cost is also a major factor.
It is necessary to make a decision based on the total cost, including not only the initial installation cost but also operation and maintenance costs. On the other hand, storage batteries also present challenges.
For example, there are problems related to the limit of storage capacity and the efficiency of recharge/discharge.
The high initial cost of storage batteries can also be a burden for data center operators.
Future Outlook