The Next Wave of Utility Load Growth: Batteries, Data Centers and Grid Infrastructure
For decades, utilities have planned their systems around relatively predictable patterns of load growth.
That environment is changing.
The electric power industry is now seeing a combination of new generation, energy storage and extremely large electrical loads emerge at a pace that few industries experience.
Two numbers help illustrate the change:
Approximately 52 GW of utility-scale battery storage was operating in the United States by mid-2026.
At the same time, data centers are projected to consume approximately 650 terawatt-hours of electricity annually by 2030 under a reference U.S. growth scenario.
One represents a rapidly expanding grid resource.
The other represents a rapidly expanding grid load.
Both require infrastructure.
Utility Battery Storage Is Growing at an Extraordinary Pace
Utility-scale battery storage has become one of the fastest-growing components of the U.S. electric power system.
Over the last three years, installed U.S. utility battery capacity has grown at an average rate of approximately 70% annually.
The country ended 2025 with approximately 43.6 GW of operating utility battery capacity.
During just the first six months of 2026, another 8.3 GW was added, bringing total operating capacity to roughly 52 GW.
The development pipeline may be even more significant.
Another 54 GW of battery capacity is currently planned over approximately the next several years.
If those projects move forward, the United States could potentially more than double its current utility-scale battery fleet in a relatively short period of time.
Storage Is Becoming Another Tool in the Utility Toolbox
Battery installations can perform several different functions depending on system requirements.
Utilities and grid operators can use storage to support:
Peak-load management
Renewable generation integration
Energy shifting
Frequency and voltage support
Grid resiliency
Capacity needs
Transmission congestion management
Distribution system planning
As battery costs have declined and deployment has increased, storage has become increasingly practical for larger grid applications.
But a battery installation is not an isolated asset.
Every project ultimately has to connect into the electrical system.
That connection requires traditional power infrastructure.
Data Centers Are Adding Another Dimension
At the same time utilities are connecting new storage resources, they are being asked to serve a rapidly growing class of extremely large customers.
Modern data centers can require hundreds of megawatts of electricity, and clusters of data centers can create load requirements measured in gigawatts.
Artificial intelligence is accelerating that demand.
Current projections indicate that U.S. data centers could consume approximately 650 TWh of electricity annually by 2030, representing close to 12% of total U.S. electricity consumption under a reference scenario.
Depending on the pace of development, the total could be considerably higher.
Perhaps the most striking projection is that data centers could represent nearly half of U.S. electricity-demand growth through 2030.
That kind of concentrated load growth creates challenges throughout the power system.
Reliability Becomes Even More Important
For many industrial customers, a short interruption in electrical service is disruptive.
For large data centers, even extremely brief disturbances can be unacceptable.
That makes redundancy, resiliency, protection, and power quality critical parts of the electrical architecture.
Battery systems are already playing an important role.
Approximately 45 GW of battery-based uninterruptible power capacity was added globally in 2025, representing growth of approximately 30% from the previous year. Data-center development has been a major driver behind that increase.
As these facilities become larger, the relationship between utility power, onsite generation, battery storage, and microgrids may become increasingly sophisticated.
Every Megawatt Has to Travel Through Infrastructure
It is easy to focus on the technology inside a data center or the battery containers at a storage facility.
But electricity still has to get there.
New load and new generation ultimately place requirements on the physical grid.
That can mean additional:
Transmission capacity
Substations
Distribution infrastructure
Transformers
Conductors
Connections
Grounding
Protection systems
Switching
Monitoring and controls
Reliability and system-hardening solutions
For the utility industry, this may be one of the most important parts of the current energy transition.
The growth isn't limited to one new technology.
It creates infrastructure requirements across the entire power-delivery system.
An Infrastructure Cycle That Is Just Getting Started
Utility-scale batteries help demonstrate how quickly the electrical system is changing.
Data centers demonstrate how quickly electricity demand itself can change.
Put the two together, and the result is a grid being asked to become larger, more flexible, more resilient, and more sophisticated at the same time.
For utilities, cooperatives, municipalities, engineers and distributors, preparing for that future means thinking beyond individual projects.
It means looking at the entire system.
At Mountain Power Reps, our team works with the utility community throughout our territories to help connect customers with products, technical knowledge, and solutions designed for the evolving electric grid.
The technologies may continue to change.
The fundamental mission does not.
Deliver power safely, reliably and efficiently wherever it is needed.
The next wave of electrical infrastructure investment is already underway.
Data sources: U.S. Energy Information Administration, Lawrence Berkeley National Laboratory, International Energy Agency
