PPL Electric Utilities, the smart-grid pioneer of Pennsylvania
PPL Electric Utilities is the second-largest electricity provider in Pennsylvania and one of the most reliable utilities in the country, serving about 1.5 million homes and businesses across 29 counties in eastern and central Pennsylvania. The company is the inheritor of one of the most advanced smart grid programs in the U.S. and reports that this technology has already prevented more than 3 million outages.
- The size of the PPL Electric network and the regions it covers
- Why power outages happen on the PPL grid
- The $8 billion infrastructure plan for 2026 to 2029
- How smart grid automation has reduced outages by 25% in one year
1.5 million customers across 29 Pennsylvania counties
PPL Electric covers 29 counties in eastern and central Pennsylvania, including the Lehigh Valley, Susquehanna Valley and Pocono Mountains. The territory mixes dense suburban areas with rural footprint and forested terrain that drives unique outage patterns.
- About 1.5 million electric customers in eastern and central Pennsylvania.
- 29 counties served, including major communities of Allentown, Bethlehem, Easton, Harrisburg, Lancaster, Scranton and Wilkes-Barre.
- Regularly ranked among the most reliable utilities in the U.S., with smart grid technology that has prevented more than 3 million outages to date.
- Outages dropped about 25% from 2024 to 2025, with more than 500,000 power outages prevented in 2025 alone.
PPL Electric is regulated by the Pennsylvania Public Utility Commission (PUC) and is part of PPL Corporation (NYSE: PPL), headquartered in Allentown.
Why thunderstorms and wet snow dominate PPL outages
Despite top-quartile reliability, PPL has faced more storms over the past three years than any other three-year period in its recorded history. The company explicitly cites severe weather as the main driver behind its rising investment plan.
Severe weather
Heavy thunderstorms in summer, ice storms in winter and high-wind events drive most large-scale outages on the PPL grid. Pennsylvania's mid-Atlantic location exposes the territory to nor'easters, hurricane remnants and Great Lakes-driven cold fronts.
Trees and vegetation
Pennsylvania's heavily forested terrain makes vegetation a recurring outage driver. PPL trims thousands of miles of power lines per year and uses AI-assisted vegetation management to prioritize the highest-risk segments.
Aging infrastructure
Older poles, wires and underground cables fail more often as the asset base ages. Replacement is one of the four pillars of the current investment plan.
The PPL Wildfire Prevention Plan and Resiliency Plan
PPL announced an $8 billion investment plan for 2026 to 2029, on top of existing reliability work, to keep up with both severe weather and surging electricity demand. PPL Corporation as a whole plans roughly $23 billion in infrastructure improvements through 2029.
PPL Electric grid investment plan
$8 billion in PPL Electric infrastructure improvements planned for 2026 to 2029.
$23 billion in capital plan across PPL Corporation through 2029.
$49.5 million U.S. Department of Energy GRIP funding for the Grid of the Future project, supporting $99 million of total work.
More than 3 million outages prevented through smart grid technology since the program began.
About 25% reduction in outages between 2024 and 2025.
PPL filed its first distribution base rate request in a decade in September 2025, for a $356 million increase. New rates are expected to take effect on July 1, 2026 if approved by the Pennsylvania PUC.
Smart grid, automated switches and predictive failure detection
Self-healing smart grid
PPL was an early leader in self-healing smart grid technology. Intelligent devices isolate damaged sections and reroute power automatically, often restoring service to most customers within minutes.
DLR sensors and dynamic line ratings
PPL uses Dynamic Line Rating (DLR) sensors that collect real-time wind speed and conductor temperature data. This lets operators safely push more electricity through existing lines and relieve transmission congestion without new construction.
DERMS for distributed energy
A Distributed Energy Resource Management System (DERMS) handles two-way power flow from rooftop solar, wind, batteries and EV chargers. The system streamlines new interconnections and supports a higher share of distributed energy on the grid.
AI for vegetation and predictive maintenance
AI-assisted vegetation management uses imagery and modeling to identify trees most likely to cause future outages. Predictive failure monitoring on poles, transformers and switchgear targets replacements before equipment fails.
PPL Outage Center and customer alerts
PPL outage map
PPL publishes a public outage map updated in near real-time. Customers can search by address or zip code, see the size of the affected area, estimated restoration times and crew status.
Mobile app and alerts
The PPL Electric mobile app gives access to the outage map, lets customers report a power outage and pushes proactive SMS, email and app notifications when service is interrupted.
OnTrack and bill assistance
PPL runs the OnTrack low-income payment program and partners with non-profits and the state on additional assistance, including LIHEAP and weatherization programs.
PECO and Pennsylvania's main ISPs
For a wider view of how the U.S. electric grid works and why outages happen, see the U.S. power outage page. The other major Pennsylvania utility is PECO in the Philadelphia area. For internet outages across the same Pennsylvania footprint, the most common providers are Xfinity, Verizon and AT&T.