What is load-shedding?
Load-shedding is a controlled power outage used to prevent a grid from overloading when a major power source goes offline.
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Alaska / Power Outage
Power Outage Hits Anchorage and Mat-Su
A widespread power outage impacted thousands of residents in Anchorage and the Matanuska-Susitna Borough on Monday morning, October 27, 2025. Utilities reported the outage was due to a load-shedding event, but power was quickly restored.
Key Insights
- Approximately 19,000 customers of Matanuska Electric Association (MEA) were affected, stretching from Mat-Su to Eagle River.
- Chugach Electric Association also reported thousands of customers impacted across Anchorage.
- Homer Electric Association reported an outage affecting around 9,400 customers, believing it was caused by a power plant in Anchorage tripping offline.
- Load-shedding is a power management technique to prevent grid overload when a major power source goes offline. This matters because it is a controlled way to prevent larger, more widespread outages.
In-Depth Analysis
The power outage occurred around 9:40 AM AKDT, with both Chugach Electric and MEA reporting the load-shedding event on social media. Chugach Electric stated that the outage was caused by a loss of power generation, leading to cascading outages across their service territories. Power was restored to Chugach Electric customers by 10:15 AM, and MEA reported restoration by 10:41 AM. Homer Electric Association also restored power to its customers by 10:15 AM.
Load-shedding is implemented to stabilize the system during a power generation loss, preventing a larger and potentially more damaging event. It allows utilities to manage the situation and restore power in a controlled manner. The Anchorage School District reported that half of its schools experienced a power outage, but generators functioned properly.
FAQ
How many people were affected by the outage?
Approximately 19,000 MEA customers and thousands of Chugach Electric customers were affected. Homer Electric Association reported around 9,400 customers were affected.
How long did the outage last?
Power was restored to most customers within about an hour.
Takeaways
- A load-shedding event caused a significant, but brief, power outage in Anchorage and Mat-Su.
- Utilities implemented load-shedding to prevent a larger grid failure.
- Power was quickly restored to the majority of affected customers.
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