Every spring and summer, the Mid-Atlantic settles into storm season. Maryland homes see frequent thunderstorms and lightning, and late summer into fall can bring the remnants of tropical systems with heavy wind and rain. All of that weather is hard on your electrical system, because storms are a leading source of the power surges that damage electronics and appliances. Whole-house surge protection is the defense built for exactly this season.

Here is why whole-house surge protection matters during Mid-Atlantic storm season.

What a power surge does

A power surge is a brief spike in voltage that pushes more electricity into your home’s wiring than it is meant to carry. Even a short spike can degrade or destroy the sensitive electronics in modern homes, from computers and televisions to the control boards inside major appliances, HVAC systems, and smart devices. Some surges cause instant failure, while smaller repeated surges wear equipment down over time.

Why storm season raises the risk

Storms drive surges in more than one way:

• Lightning. A nearby strike can induce a large surge into power lines and your home’s wiring, even without a direct hit. Lightning is one of the most powerful surge sources.
• Grid disturbances. Storms cause outages, downed lines, and equipment faults, and the switching and restoration of power afterward can send surges through the system.
• Wind and tree damage. Falling limbs and downed lines during high wind can create faults and surges.

Because the Mid-Atlantic sees regular thunderstorms through the warm months plus occasional tropical weather, the cumulative exposure over a season is significant.

How whole-house surge protection works

Whole-house surge protection is installed at your electrical panel, where it intercepts surges before they spread to the circuits throughout your home. A service-entrance or panel-mounted surge protective device (SPD) diverts excess voltage safely, protecting everything downstream. This is different from the plug-in power strips at individual outlets, which only protect what is plugged into them and offer far less capacity.

The most effective approach is layered protection: a whole-house device at the panel to handle large surges, combined with quality plug-in protectors at your most sensitive electronics for a second layer.

It is now a code consideration

Surge protection has also become a standard part of modern electrical work. Recent editions of the National Electrical Code require surge protection to be provided for dwelling unit services when the service is installed or replaced. So if you are upgrading your panel, adding whole-house surge protection is often part of bringing the service up to current standards.

What it does and does not cover

Whole-house surge protection is highly effective against the surges that storms and grid events produce, but it is not a guarantee against every possible event, and an extremely large direct lightning strike can overwhelm any protection. It also is not a substitute for insurance. Think of it as strong, always-on protection that dramatically reduces your risk, paired with the plug-in protectors and insurance coverage that round out your defense. Stella Electric is not an insurer, so check your policy for how surge damage is treated.

Getting ready before the next storm

If you want to protect your home before the next round of storms:

• Have a whole-house SPD installed at your panel by a licensed electrician.
• Add quality plug-in surge protectors at computers, entertainment systems, and other sensitive electronics.
• Make sure your panel and grounding are in good condition, since surge protection relies on a solid ground.
• Consider it alongside any panel upgrade you are already planning.

Mid-Atlantic storm season brings the lightning, grid disturbances, and severe weather that produce damaging power surges. Whole-house surge protection installed at your panel intercepts those surges before they reach your circuits, protecting the electronics and appliances throughout your home. Paired with plug-in protectors and good grounding, and now often part of code-compliant service work, it is one of the most worthwhile protections a Maryland homeowner can add before storm season.

Stella Electric installs whole-house surge protection for homeowners across the Baltimore area and throughout Maryland, with flat-rate pricing and no overtime charges. Get protected before the next storm rolls through. Financing is available on qualifying projects.