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An electrical panel upgrade is the process of replacing or upgrading a home’s main electrical panel to increase capacity, improve safety, or meet modern electrical standards.
Electrical panels distribute electricity throughout a home. If a panel is outdated or lacks sufficient capacity, it may not be able to safely support additional electrical load, including a solar energy system.
According to the U.S. Department of Energy, homes adding new energy technologies may require electrical system upgrades to safely handle increased demand and meet current codes1.
An electrical panel upgrade involves replacing or modifying the primary components of a home’s electrical system.
Typical process:
A licensed electrician evaluates the existing panel
The panel is replaced or upgraded to a higher capacity (often from 100 amps to 200 amps)
New breakers and wiring connections are installed
The system is inspected to ensure it meets local electrical codes
Upgrades are designed to ensure the home can safely distribute electricity across all systems and appliances.
Not all homes require an upgrade, but certain conditions make one more likely.
Common reasons include:
An older panel that no longer meets code requirements
Insufficient capacity for modern electrical usage
Frequent breaker trips or overloaded circuits
Adding high-demand systems like electric vehicles or solar
Electrical panels that are outdated or undersized may need to be upgraded before additional systems can be installed safely.
Electrical panel upgrades are sometimes required before installing solar, particularly if the existing panel cannot support the added electrical load.
Common scenarios include:
Panels that are already at full capacity
Systems that do not meet current electrical codes
Homes adding both solar and battery storage
With providers like Sunrun, panel capacity is typically evaluated during the solar design process. If an upgrade is needed, it may be coordinated as part of the overall installation, helping streamline the process for homeowners.
Electrical panel upgrades play an important role in safety and system performance.
They help:
Ensure safe distribution of electricity throughout the home
Support modern energy needs and new technologies
Reduce the risk of overloaded circuits or electrical hazards
Prepare the home for solar and other energy upgrades
Upgrading a panel can improve both reliability and long-term electrical capacity.
These terms are often used interchangeably but can have slightly different meanings:
Electrical panel upgrade: increasing capacity or improving functionality
Panel replacement: swapping out an old or faulty panel with a similar or upgraded version
In many cases, a replacement also serves as an upgrade if capacity or safety features are improved.
An electrical panel upgrade increases a home’s electrical capacity and safety
It may be required when adding new systems like solar or electric vehicles
Upgrades ensure compliance with modern electrical codes
Solar installations sometimes require panel upgrades to support system load
Some providers coordinate upgrades as part of the solar installation process
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