When Summer AC Loads Signal It’s Time for a 200-Amp Panel Upgrade

Overloaded Electrical Panels and Summer AC: A Master Electrician Explains When to Upgrade

Plaistow, United States – June 11, 2026 / Moore Electric Inc. /

Moore Electric Inc. Releases Guidance on Electrical Panel Capacity and Summer Cooling Load for Southern NH and Northern MA Homeowners

Moore Electric Inc., a family-owned electrical contractor based in Plaistow, NH, has published new guidance to help homeowners in southern New Hampshire and northern Massachusetts recognize when their electrical panel capacity is no longer adequate for modern demands, with a specific focus on the added strain that central air conditioning places on older systems each summer.

The guidance addresses a practical and recurring problem. As homes add central AC, smart appliances, and electric vehicle chargers, many older panels were never designed to handle that combined load. The timing is intentional, ahead of the hottest months of the year when the issue becomes most visible to homeowners.

Why Summer Is When Panels Fail

Central air conditioning is one of the heaviest single loads a home electrical system carries. When an AC unit starts up, it draws a surge of current that can push an already-busy panel past its limits. For homes still running on 60-amp or 100-amp service, that margin disappears quickly once the AC compressor kicks on alongside other household appliances.

According to Brenden Moore, owner and Master Electrician at Moore Electric with more than 25 years in the trade, an overloaded panel during summer often shows up as frequently tripped breakers, flickering lights when the AC starts, or breakers that feel warm to the touch. These are not minor inconveniences. A breaker that trips repeatedly under AC load may eventually fail to trip at all, which removes the protection it was designed to provide.

Many homes in southern New Hampshire and northern Massachusetts were wired decades ago, when household electrical demand was a fraction of what it is today. A panel installed for a home built decades ago was never sized for modern cooling systems, charging stations, or home office equipment.

What a 200-Amp Panel Upgrade Involves

A 200 amp panel upgrade replaces the main electrical panel and, in many cases, the service entrance wiring that connects the home to the utility. The work requires coordination with the local utility company and a licensed electrician who can pull the proper permits and complete the job to current code.

For homeowners asking when to upgrade an electrical panel, there are several triggers beyond repeated tripping. These include a panel that uses fuses instead of breakers, double-tapped breakers where two wires share a single slot, or a service entrance rated below 150 amps. Any of these conditions, combined with the addition of central AC, makes an electrical panel upgrade a reasonable and practical next step rather than a luxury.

Homeowners planning to add an EV charger or a heat pump in the coming years may also find a 200-amp panel upgrade is worth doing now rather than returning to the job twice.

Local Service for Southern NH and Northern MA Homeowners

As an electrician serving southern New Hampshire and northern Massachusetts, Moore Electric Inc. handles panel upgrades and service upgrades across Plaistow NH, Haverhill MA, and surrounding communities in both states. The company is licensed in Massachusetts, New Hampshire, and Maine, and works on a model of upfront pricing and direct communication, so homeowners receive a clear scope of work and cost before any job begins.

Moore Electric emphasizes that code-compliant work and proper permitting are not optional steps. They are what protect the homeowner’s insurance coverage and the safety of everyone in the house. An unpermitted panel upgrade may not be recognized by an insurance carrier if a claim is ever filed following an electrical fire.

For homes where the panel is more than 25 years old and has never been evaluated, Moore Electric recommends scheduling an inspection before peak cooling season. Catching a capacity problem in May is far less disruptive than a failed breaker during a July heat wave.

About Moore Electric Inc.

Moore Electric Inc. is a family-owned electrical contracting company based in Plaistow, NH, led by Master Electrician Brenden Moore with more than 25 years of experience. Licensed in Massachusetts, New Hampshire, and Maine, the company serves residential and commercial customers throughout southern New Hampshire and northern Massachusetts, providing electrical panel upgrades, new construction wiring, service upgrades, and a full range of electrical repair and installation work.

Moore Electric treats every home as if it were its own, with work built on code compliance, clear communication, and straightforward pricing. Homeowners can reach the company at 603-836-9513 or at mooreelectricinc.net.