Data centers are digital infrastructures that play an important role in supporting various technological activities, ranging from information storage and cloud computing to internet services and artificial intelligence (AI) development.
As the demand for digital services continues to grow, data center construction is also expanding. This growth has contributed to increasing electricity demand, particularly for operating servers, cooling systems, communication networks, and various supporting facilities.
Unlike conventional commercial buildings, data centers require a stable and uninterrupted electricity supply 24 hours a day. Power disruptions can affect server performance, interrupt digital services, and potentially result in data loss and operational losses.
On the other hand, high electricity consumption means data center operators need to consider energy efficiency strategies and carbon emission reduction. One solution worth considering is the utilization of Solar Power Systems (PLTS).
PLTS allows data centers to harness solar energy to generate electricity for operational activities. In addition to diversifying energy sources, this technology also has the potential to reduce electricity consumption from the main grid.
So, how can PLTS be implemented in data centers, and what are its benefits? Let's explore the details below!
What Is a Solar Power System (PLTS) for Data Centers?
A Solar Power System (PLTS) for data centers is a power generation system that utilizes solar energy through solar panels to help meet the energy requirements of data center operations.
The system works by converting solar radiation into electricity using photovoltaic (PV) cells installed in solar panels.
The electricity generated can then be used directly to meet part of the data center's energy requirements or stored in batteries if the system is equipped with energy storage technology.
In practice, PLTS can be integrated with the PLN electricity grid or the data center's internal electrical system. The system configuration should be adjusted to the facility's power requirements, energy consumption patterns, building conditions, and operational targets.
The utilization of PLTS can also become part of a Green Data Center strategy, an approach to data center management that prioritizes energy efficiency, carbon emission reduction, and sustainable resource utilization.
Why Do Data Centers Require Large Amounts of Electricity?
Data centers have high electricity requirements because various devices and facilities inside them must operate continuously.
Furthermore, the increasing adoption of AI technology and high-performance computing is driving additional energy demand from data centers.
According to a report by the International Energy Agency (IEA), global data center electricity consumption was estimated to reach approximately 415 TWh in 2024. This demand continues to increase alongside the growth of digital services and AI adoption.
Here are several data center components that require a continuous electricity supply.
1. Servers and IT Equipment
Servers are the primary components of data centers, functioning to process, store, and manage data.
These devices must operate continuously to support various digital services, including applications, websites, databases, and cloud computing.
In addition to servers, data storage devices, GPUs, CPUs, and network infrastructure also require a stable electricity supply.
2. Cooling Systems and HVAC
Server equipment generates heat during operation. If the temperature is not properly controlled, excessive heat can affect equipment performance and reliability.
Therefore, data centers require cooling systems and HVAC (Heating, Ventilation, and Air Conditioning) to maintain temperatures and environmental conditions according to operational specifications.
These cooling systems are among the components that contribute to data center electricity consumption.
3. Electrical Systems and UPS
Data centers require electrical infrastructure designed to maintain continuous power availability.
Some of the equipment used includes Uninterruptible Power Supply (UPS) systems, electrical distribution panels, transformers, and power management systems.
UPS systems provide temporary electricity when the main power source experiences an interruption. This allows IT equipment to continue operating while the power supply is being restored or switched to a backup source.
4. Security Systems and Supporting Infrastructure
Apart from the main equipment, data centers also require electricity to operate various supporting facilities.
Examples include security systems, CCTV, access control, fire detection systems, lighting, and monitoring devices.
Although each device has different power requirements, all these facilities contribute to the data center's total energy consumption.
Benefits of PLTS for Data Centers
Solar energy utilization can be one of the strategies for data center operators to optimize energy consumption while supporting sustainability targets.
Here are several benefits of implementing PLTS in data centers.
1. Helps Reduce Electricity Consumption from the PLN Grid
One of the main benefits of PLTS is its ability to generate electricity independently using solar energy.
The electricity generated by solar panels can be used to meet part of the data center's operational requirements, particularly during periods of solar energy production in daylight hours.
As a result, the facility can reduce some of its electricity requirements from the PLN grid.
The amount of electricity consumption that can be reduced depends on the PLTS capacity, solar irradiation intensity, installation conditions, and the data center's energy consumption patterns.
2. Supports Carbon Emission Reduction
Solar energy utilization can help reduce greenhouse gas emissions associated with electricity consumption from fossil fuel-based power sources.
Unlike fossil fuel power plants, solar panels do not produce emissions from fuel combustion during electricity generation.
By utilizing PLTS, data centers can reduce some of their electricity consumption from conventional energy sources and support operational carbon footprint reduction targets.
This is becoming increasingly important for technology companies and data center operators with Environmental, Social, and Governance (ESG) commitments.
3. Optimizes Long-Term Energy Costs
Electricity consumption is one of the operational cost components that data center operators need to consider.
Using PLTS can help optimize energy costs by utilizing electricity generated from solar panels.
When solar power production aligns with the facility's energy consumption patterns, the electricity generated can be used directly to reduce the need for power from the main grid.
In the long term, the resulting savings can help improve operational cost efficiency.
However, investment feasibility still needs to be assessed by considering procurement costs, installation, maintenance, system capacity, and applicable electricity utilization schemes.
4. Supports Green Data Center Initiatives
A Green Data Center is a data center management concept that prioritizes energy and resource efficiency to minimize environmental impacts.
Its implementation does not only focus on using energy-efficient server equipment but also includes cooling systems, water management, renewable energy utilization, and carbon emission reduction.
PLTS can become one of the supporting components in developing a Green Data Center through the utilization of renewable energy sources.
5. Diversifies Energy Supply Sources
Dependence on a single energy source can be one of the challenges in managing facilities with high electricity requirements.
Integrating PLTS allows data centers to have an additional electricity generation source that can be utilized according to operational conditions.
With proper system planning, PLTS can operate alongside the PLN grid, batteries, and other backup power sources to support energy management strategies.
However, the presence of PLTS does not automatically guarantee electricity continuity during grid outages. Backup systems and electrical protection must still be designed separately according to the data center's reliability requirements.
Types of PLTS Systems for Data Centers
Selecting a PLTS system for data centers requires consideration of energy requirements, electricity grid conditions, and the targeted reliability level.
In general, the following PLTS systems can be considered for data centers.
On-Grid PLTS
An on-grid PLTS system is a solar power generation system connected to the main electricity grid, such as PLN.
In this system, the electricity generated by solar panels is converted through an inverter so that it can be used by the building's electrical installation.
When solar power production is sufficient, the generated electricity can be used to meet the facility's energy requirements. If production is insufficient, the electricity deficit can be supplied by the PLN grid according to the system configuration.
Meanwhile, when solar power production exceeds instantaneous consumption, the handling of excess electricity depends on the installation design and applicable grid interconnection regulations.
Advantages of On-Grid PLTS:
a. Helps reduce electricity consumption from the main grid.
b. Does not require batteries as a primary system component.
c. Has a relatively simpler configuration compared to hybrid systems.
d. Can be utilized to meet part of the facility's energy requirements during daylight hours.
However, standard on-grid PLTS systems generally stop operating when the PLN grid experiences a power outage due to anti-islanding protection mechanisms.
Therefore, this system cannot be considered a backup electricity source during grid disruptions.
Nevertheless, according to Batari Energy's technical experts, an on-grid system is the most suitable PLTS option for data centers. This is because data centers have substantial electricity loads and require considerable installation areas.
For the same reasons mentioned above, off-grid and hybrid PLTS systems can be relatively difficult to implement for data centers, unless the battery system is designed to function specifically as a UPS.
Challenges of Implementing PLTS for Data Centers
Although it offers various benefits, integrating PLTS into data centers presents several challenges that need to be considered.
This is closely related to the characteristics of data centers, which require a stable, high-quality, and continuously available electricity supply 24 hours a day.
1. Continuous 24-Hour Electricity Requirements
Unlike PLTS energy production, which depends on sunlight availability, data centers require electricity continuously.
Solar panels primarily generate electricity during daylight hours, while energy production decreases when sunlight intensity declines and stops at night.
This creates a difference between solar energy production periods and the electricity demand of data centers.
To address this challenge, PLTS needs to be integrated with the PLN grid, battery systems, or other energy sources according to operational requirements.
2. Power Reliability and Quality Requirements
Data centers have strict electrical reliability requirements because power supply disruptions can directly affect digital services.
Therefore, PLTS integration must not interfere with voltage stability, frequency, or the quality of electricity supplied to IT equipment.
Inverter selection, electrical protection systems, UPS, and power distribution management must be designed according to the characteristics of data center loads.
3. Limited Space for Solar Panel Installation
Installing PLTS requires sufficient space to accommodate solar panels.
In data centers, available rooftop space can become a challenge because some areas may already be occupied by HVAC systems, mechanical installations, and other supporting equipment.
If rooftop space is limited, operators can consider alternatives such as solar carports, available land surrounding the facility, or solar power plants developed at separate locations.
4. Initial Investment and Energy Storage Costs
Implementing PLTS requires an initial investment for procuring solar panels, inverters, mounting structures, electrical installations, and other supporting equipment.
If the system requires energy storage, the investment must also include batteries and a Battery Management System (BMS).
Storage capacity needs to be designed based on load requirements, desired backup duration, and energy management strategies.
Therefore, data center operators need to conduct a cost-benefit analysis before determining the system configuration.
5. Integration with Existing Electrical Infrastructure
Data centers generally have complex electrical infrastructure, including transformers, distribution panels, UPS systems, generators, and monitoring systems.
PLTS integration needs to consider the capacity of each component and electrical protection coordination.
Improper planning can cause disruptions to electricity distribution or reduce the overall reliability of the existing system.
Steps for Installing PLTS in Data Centers
Installing PLTS in data centers requires careful technical planning to ensure the system operates optimally without disrupting operational activities.
Here are several essential steps involved in the installation process.
1. Conduct an Energy Audit and Requirement Analysis
The first step is to evaluate the data center's electricity consumption profile.
The analysis can include average power requirements, peak loads, daily consumption patterns, and electricity distribution across different facilities.
This data is used to determine the potential PLTS capacity and estimate the contribution of solar energy to the facility's electricity requirements.
2. Conduct a Site Survey and Infrastructure Evaluation
After identifying energy requirements, the next step is to conduct a survey of the installation site.
Several aspects that need to be evaluated include:
a. Rooftop area and structural condition.
b. Solar radiation intensity.
c. Potential shading from surrounding buildings or objects.
d. Availability of space for solar panel installation.
e. Existing electrical installation conditions.
f. Transformer and distribution panel capacity.
g. PLN grid interconnection requirements.
The survey results provide the basis for determining a system design that suits the facility's conditions.
3. Determine PLTS Capacity and System Configuration
PLTS capacity needs to be adjusted to electricity requirements and the potential solar energy production at the location.
At this stage, operators need to determine whether the system will use an on-grid, hybrid, or off-grid configuration.
If a hybrid system is selected, battery capacity must also be calculated based on energy storage requirements and the desired backup duration.
Additionally, the system design must consider integration with UPS systems, generators, and the data center's electrical distribution infrastructure.
4. Install and Integrate the System
Once the technical design has been approved, the process continues with component procurement and PLTS installation.
The installation process generally includes:
Installing Solar Panel Mounting Structures
Installing the structures that support the solar panels.
Installing Photovoltaic Modules
Mounting and connecting solar panels according to the approved system design.
Installing Inverters
Installing inverters to convert the direct current (DC) generated by solar panels into alternating current (AC).
Installing Cables and Protection Devices
Setting up electrical cables, circuit breakers, and other protection devices to ensure safe system operation.
Installing Batteries (If Required)
Installing battery storage systems if the selected configuration requires energy storage.
Integrating with the Electrical Distribution System
Connecting the PLTS system to the facility's electrical infrastructure according to the approved design.
Testing and Commissioning
Conducting system testing and commissioning to ensure that all components operate according to technical specifications.
The entire process must comply with occupational safety standards and must not disrupt facility operations.
5. Conduct Monitoring and Maintenance
After the system becomes operational, operators need to conduct regular monitoring to ensure that PLTS performance remains optimal.
Monitoring activities can include energy production, inverter performance, solar panel conditions, and battery status if the system is equipped with energy storage.
Periodic maintenance is also necessary to maintain component performance and identify potential issues at an early stage.
Why Is PLTS Important for Supporting Green Data Centers?
A Green Data Center is a data center management concept that prioritizes resource efficiency and environmental impact reduction.
This concept is becoming increasingly important as the demand for digital infrastructure continues to grow, particularly to support cloud computing, artificial intelligence, and various data-driven applications.
In practice, Green Data Centers do not only focus on IT equipment efficiency but also cover various other operational aspects.
Here are several strategies that can be implemented to support the Green Data Center concept.
1. Optimizing Energy Efficiency
Data center operators can use more energy-efficient server equipment, optimize cooling systems, and implement technologies to monitor electricity consumption.
One commonly used indicator to measure the energy efficiency of data center facilities is Power Usage Effectiveness (PUE).
PUE is the ratio between the total energy consumed by a data center facility and the energy consumed by its IT equipment.
The closer the PUE value is to 1, the less additional energy is consumed by supporting facilities outside the IT equipment.
2. Utilizing Renewable Energy
Renewable energy utilization is one of the strategies for reducing dependence on fossil fuel-based energy sources.
Data centers can consider using solar power, wind energy, hydropower, and other renewable electricity procurement schemes.
PLTS is one of the available options because it can be installed on rooftops, surrounding land, or developed as a separate power generation facility according to operational requirements.
3. Optimizing Cooling Systems
Cooling systems are among the components that influence data center energy efficiency.
Operators can implement strategies such as hot aisle containment, cold aisle containment, airflow management, and more efficient cooling technologies.
Optimizing cooling systems helps reduce the energy required to regulate IT equipment temperatures.
4. Monitoring Energy Consumption
Monitoring systems allow operators to understand energy consumption patterns and identify potential inefficiencies.
Electricity consumption data can be used to evaluate facility performance, optimize equipment operations, and determine future efficiency strategies.
If a data center uses PLTS, monitoring systems can also compare solar energy production with the facility's electricity requirements.
PLTS Development Potential for Data Centers in Indonesia
Indonesia has considerable solar energy development potential that can be utilized to support the energy requirements of the digital sector.
As the digital economy continues to grow, demand for data storage and processing facilities is also increasing.
This creates opportunities for developing data centers that prioritize not only infrastructure capacity and reliability but also energy efficiency and environmental sustainability.
According to a study by the Center for Strategic and International Studies (CSIS) on Green Data Center development in Indonesia, increasing data center capacity needs to be accompanied by improved access to renewable energy and adequate supporting policies.
In this context, PLTS can become one of the alternatives for helping meet clean energy requirements.
Its implementation can take several approaches, including:
Solar Rooftop PLTS: Utilizing data center rooftop areas to generate electricity.
Solar Carport: Installing solar panels on parking area canopies.
Ground-Mounted PLTS: Developing solar power plants on available land surrounding the facility.
PLTS with Battery Storage: Integrating solar panels with energy storage systems to increase electricity utilization flexibility.
Selecting the appropriate location and system configuration requires consideration of land availability, solar energy potential, power requirements, and applicable technical regulations.
With proper planning, PLTS utilization can become part of a strategy for developing more energy-efficient and low-carbon data centers.
Make Your Data Center More Sustainable with PLTS from Batari Energy
Increasing energy demand means data center operators need to consider electricity solutions that are efficient, reliable, and environmentally sustainable.
One step that can be taken is integrating Solar Power Systems (PLTS) to help meet part of the electricity requirements of data center facilities.
Batari Energy provides PLTS installation services and solutions for data centers.
Batari Energy's services cover site surveys, system planning, component procurement, installation, and PLTS maintenance. System configurations can be customized according to project requirements, including on-grid, off-grid, and hybrid systems with battery energy storage support.
With the right system design and capacity, PLTS can help data centers optimize solar energy utilization, reduce some of their electricity consumption from the main grid, and support corporate sustainability targets.
Looking to integrate solar energy and install PLTS to support your data center operations? Consult with Batari Energy about PLTS installation for data centers and discover a solution tailored to your facility's infrastructure and energy requirements through this link.