More Massachusetts homeowners are looking at solar every year, thanks to rising utility rates and strong state incentives. But before panels ever touch your roof, your home's electrical system has to be ready to handle them safely. Here's what BHELECTRICS wants you to know before you sign a solar contract.
Your Panel Needs Capacity
Solar installations typically require a "line-side tap" or "backfeed" connection at your main electrical panel. Many older Massachusetts homes still run 100-amp service, which often can't safely accommodate a solar interconnection alongside modern appliances, EV chargers, and central AC. A licensed electrician should evaluate your panel's amperage and bus bar rating before your solar installer ever schedules a start date.
Permits and Utility Interconnection
Solar installations in Massachusetts require an electrical permit from your local building department, plus a formal interconnection agreement with your utility (Eversource or National Grid, depending on your town). Skipping this step isn't just a compliance risk - it can delay your system's activation by weeks or void your net metering credits.
Battery Backup Considerations
If you're pairing your solar array with battery storage, your electrical system needs additional wiring for critical loads, a transfer switch, and often a subpanel dedicated to backup circuits. This is a job for a licensed electrician, not the solar sales team - the wiring has to meet Massachusetts electrical code, not just the battery manufacturer's install guide.
Don't Forget Surge Protection
Adding solar inverters and battery equipment introduces new points of electrical sensitivity in your home. Whole-house surge protection, installed at your main panel, helps shield your new solar equipment - along with your existing appliances and electronics - from damage during storms and grid fluctuations, which are common during New England's unpredictable weather.
Get an Electrical Assessment First
The biggest mistake homeowners make is letting the solar company handle every electrical decision. An independent electrical assessment before installation catches panel upgrades, code issues, and grounding problems early, saving you from costly change orders mid-project.
Thinking about going solar this year? Call BHELECTRICS at (781) 732-0174 or visit bhelectrics.com to schedule an electrical readiness assessment before your installation begins. We'll make sure your home's wiring is solar-ready from day one.