The Rapid Rise of Data Centers and the Energy Challenge
Demand for data centers continues to grow as artificial intelligence, cloud computing, and digital services expand. These facilities support the infrastructure behind modern technology and operating them requires large amounts of electricity.
Illinois has become an attractive location for hyperscale data center development. The state offers strong fiber connectivity, a skilled workforce, and access to major markets, which makes it appealing for companies building new computing infrastructure.
As more facilities are developed, electricity demand increases. Large data centers can require hundreds of megawatts of continuous power, making them some of the most energy-intensive commercial facilities in operation.
To address this growing demand, Illinois lawmakers introduced the proposed Illinois POWER Act (HB5513). The legislation focuses on ensuring that new data center projects support clean energy development while protecting utility customers and maintaining grid reliability.
As data center demand continues to grow, maintaining reliable power becomes more complex. Energy storage will play a central role in meeting that need.
What Is the Illinois POWER Act?
The Protecting Our Water, Energy, and Resources (POWER) Act is proposed legislation in Illinois that establishes requirements for large data center developments.
The bill focuses on three major areas:
- Electricity consumption
- Grid infrastructure impacts
- Water usage and environmental protection
Lawmakers introduced the legislation in response to the accelerating energy demand created by hyperscale computing facilities.
The central idea behind the POWER Act is straightforward. If a data center requires massive amounts of electricity, the developer must supply clean power and pay for the infrastructure required to deliver it.
This framework ensures that:
- Residents don’t absorb the cost of data center grid upgrades.
- New renewable generation is added to the grid.
- Infrastructure development supports long-term sustainability goals.
The policy reflects a growing trend across the United States. Governments want digital infrastructure, and they also want that infrastructure powered responsibly.
Why Illinois Is Taking Action
Data center electricity demand has increased dramatically in recent years. AI workloads alone require enormous computing capacity.
Several key factors drove the development of the POWER Act.
1. Rapid Growth in Electricity Demand
Hyperscale facilities operate around the clock. Servers, cooling systems, networking equipment, and backup infrastructure consume enormous amounts of electricity.
A single AI data center can demand 200 MW, 500 MW, or even 1 GW of continuous power. To put this into perspective, 1 GW can power hundreds of thousands of homes. Without careful planning, these facilities can place significant strain on the electrical grid.
2. Protection of Utility Ratepayers
Large grid upgrades are often required to support new industrial loads.
These upgrades may include:
- Transmission expansion
- New substations
- Interconnection infrastructure
If left unchecked, these costs could be distributed across utility customers. Illinois policymakers want to prevent this outcome. The POWER Act requires data center developers to fund the grid infrastructure necessary to power their facilities.
This policy ensures that residential customers are not responsible for the infrastructure costs associated with hyperscale computing expansion.
3. Environmental and Water Concerns
Data centers also require significant cooling capacity. Traditional cooling methods can consume large volumes of water. Some facilities may use millions of gallons per day depending on their size and cooling design.
The POWER Act introduces oversight for water consumption and environmental impact. The goal is responsible resource management while still enabling technological growth.
Key Energy Provisions in the POWER Act
The most impactful sections of the legislation focus on electricity generation and grid integration.
These provisions will significantly influence how new data centers are designed.
Bring Your Own Clean Energy
Large data centers must secure new renewable energy resources to supply their operations under the POWER Act. This requirement ensures that new computing demand does not increase fossil fuel generation.
Examples of qualifying clean energy sources may include:
- Utility-scale solar farms
- Wind energy projects
- Renewable power purchase agreements
- Integrated renewable and battery energy storage systems (BESS)
Because renewable generation is variable, many projects pair solar or wind resources with BESS that stabilize power delivery and ensure reliable electricity for data center operations. This combination of renewable generation and energy storage helps developers meet the POWER Act’s requirement to supply clean electricity for their facilities.
Developers must demonstrate that new clean energy capacity supports the electricity required for their facilities. By tying data center power demand directly to new renewable generation, the policy drives several important outcomes:
- Accelerated renewable energy deployment: New solar and wind projects must be built to meet rising data center demand.
- Alignment with climate goals: Data center growth supports Illinois’ broader clean energy transition.
- Stronger long-term grid sustainability: Additional renewable capacity improves overall grid resilience and reduces dependence on fossil generation.
Data Centers Must Fund Grid Infrastructure
Data center development often requires significant upgrades to electrical infrastructure.
Examples include:
- High-voltage substations
- Transmission lines
- Interconnection upgrades
- Grid stability systems
The POWER Act requires developers to fund the infrastructure needed to deliver power to their facilities. This provision protects consumers and ensures responsible grid expansion.
Utilities also benefit because infrastructure investments align directly with new demand instead of being distributed across general ratepayer costs.
Priority Access for Clean Energy Projects
The legislation also promotes renewable energy integration. Projects that include renewable generation and energy storage may receive faster interconnection or grid prioritization.
This policy encourages developers to deploy:
- Solar paired with battery storage
- Wind paired with storage
- Microgrid infrastructure
Energy storage becomes essential in this environment. Renewable power must be stabilized to support critical computing operations.
Why Energy Storage Will Become Essential
Renewable generation doesn’t produce electricity at a constant rate throughout the day. Solar output changes with sunlight conditions, and wind generation fluctuates with weather patterns. Data centers operate continuously and require stable, uninterrupted electricity to maintain uptime.
BESS help bridge the gap between variable renewable generation and the constant power requirements of hyperscale computing infrastructure. By storing electricity when renewable output is high and delivering it when generation drops or demand increases, energy storage supports both reliability and grid stability.
Energy storage provides several critical capabilities:
- Renewable Integration: Stored electricity can be dispatched when renewable output fluctuates.
- Load Shifting: Energy storage allows facilities to store electricity during periods of lower demand or high renewable generation and use it later when demand increases.
- Grid Stabilization: Batteries respond instantly to maintain power quality and reliability.
- Backup Power: Energy storage provides immediate power during grid disturbances.
These capabilities make storage an essential component of next-generation data center infrastructure.
The Growing Scale and Safety Considerations of Data Center Energy Storage
Modern data centers rely on large battery installations to maintain uptime and support reliable power delivery. As infrastructure expands, so does the scale of energy storage deployed alongside it.
Typical deployments range from 50 MWh to 500 MWh or more, with hyperscale campuses often reaching hundreds of megawatt-hours to support renewable integration, backup power, and grid stability.
As lithium-ion technology advances, energy density continues to increase, enabling more compact and efficient installations. This also introduces important safety considerations.
Lithium-ion batteries store significant energy in small spaces, which creates the potential for thermal runaway. This occurs when a cell failure generates heat that can spread to neighboring cells if not properly managed.
As systems scale, advanced safety becomes critical. Data center operators require energy storage solutions that prioritize thermal stability, fire suppression, gas mitigation, and long-term reliability.
Advanced Safety Architecture for Data Center Energy Storage
Large-scale battery installations require robust safety systems. High energy density, continuous operation, and proximity to mission-critical infrastructure all increase the importance of advanced thermal management and hazard mitigation. Safe energy storage protects both facility uptime and surrounding communities.
LiquidShield Immersion Cooling
Large-scale battery systems generate heat continuously during operation. If that heat is not managed effectively, it can lead to performance degradation and increase the risk of thermal runaway. LiquidShield addresses both challenges through a fully immersive cooling approach.
Battery cells are submerged in a non-toxic dielectric fluid that absorbs and dissipates heat as it is generated. This keeps temperatures consistent across the entire system and prevents localized hotspots from forming.
The same fluid creates a physical barrier around each cell. In the event of an internal failure, the absence of oxygen stops ignition immediately and prevents heat from spreading to neighboring cells.
This approach manages heat and prevents ignition at the source, delivering both performance and safety benefits:
- Consistent thermal control across all cells
- Improved system efficiency
- Support for higher-density deployments
By maintaining stable operating conditions and eliminating fire propagation, LiquidShield enables safer and more reliable energy storage for data center environments.
HazGuard Toxic Gas Neutralization
Battery failures can release hazardous gases such as hydrogen, carbon monoxide, and hydrogen fluoride. If these gases accumulate, they create serious risks within battery enclosures.
HazGuard addresses this through a controlled, multi-stage process:
- Containment: Gas emissions are contained immediately at the point of origin, preventing them from spreading within the enclosure.
- Routing: The system channels gases through a sealed pathway toward a dedicated treatment unit.
- Neutralization: Hazardous compounds are chemically neutralized, removing both toxicity and flammability.
- Safe Release: The treated output is released safely as non-hazardous exhaust.
By controlling and neutralizing gases before they can accumulate, HazGuard eliminates a critical safety risk, supporting both operational safety and regulatory compliance in large-scale energy storage systems.
The Future of Data Center Development in Illinois
The Illinois POWER Act is reshaping how data centers are designed, powered, and integrated into the grid. Developers are moving toward fully integrated energy strategies that combine generation, storage, and system optimization from the start.
These changes are transforming data centers into active participants in the energy system, supporting grid stability while enabling clean energy growth. This shift is also driving economic growth across Illinois, expanding investment in energy and digital infrastructure.
For developers, planning must start with energy. Projects will need to integrate renewable generation, storage, advanced thermal management, and robust safety systems from the outset, while enabling flexible interaction with the grid.
As demand continues to grow, energy strategy will define how data centers are built, powered, and scaled. Advanced technologies such as immersion cooling and gas mitigation eliminate critical safety risks, enabling large-scale battery systems to operate reliably.
The next generation of data centers will rely on integrated energy systems that deliver reliability, safety, and long-term sustainability.
