Baltimore Solar Interconnection & Net Metering Law
This guide explains how solar interconnection and net metering work for residents and businesses in Baltimore, Maryland. It covers local permit needs, utility interconnection steps, where net energy credits originate, and practical compliance steps so your system meets city and utility requirements. The guidance below references official Baltimore and Maryland authorities and is current as of February 2026.
Overview
Installing a distributed solar system in Baltimore requires both city permits for electrical and building work and an interconnection agreement with your utility. Net metering or net energy metering credits are governed by Maryland Public Service Commission rules and applied by the delivery utility. Local permit reviewers check code compliance and safe installation before a meter exchange or final connection is authorized.[1][2]
What steps are typically required
- Apply for Baltimore building/electrical permits and provide plans to the city permit office.[1]
- Submit the utility interconnection application and factory documentation to your electric company.
- Pass city inspections (electrical, structural as required) and receive final sign-off from Permits and Inspections.
- Complete the utility’s commissioning, meter change or permission to operate under the interconnection agreement and net metering enrollment.[2]
Apply for city permits before equipment arrives to avoid delays.
Penalties & Enforcement
Enforcement for noncompliant solar installations in Baltimore is handled through city permitting and code enforcement processes; utility disconnection or denial of interconnection may occur for unsafe or unauthorized installations.
- Monetary fines: specific fine amounts for unpermitted solar work are not specified on the cited city permit pages; refer to the enforcing office for current penalty schedules.[1]
- Escalation: the cited permit pages do not list first-versus-repeat fine tiers or per-day continuing penalties (not specified on the cited page).[1]
- Non-monetary sanctions: stop-work orders, orders to remove or remedy unsafe work, withholding of final occupancy/connection approvals, and referral to court are enforcement tools described generally by city permitting and code enforcement practice (details not specified on the cited permit page).[1]
- Enforcer and complaint pathway: Baltimore Permits and Inspections (city permit office) handles building/electrical enforcement; utility interconnection denial or disconnection is handled by the delivery utility under Maryland PSC rules.[1][2]
- Appeals and review: the permit pages do not publish a detailed appeal timetable; contact the city permit office for appeal time limits and procedures (not specified on the cited page).[1]
If the utility refuses interconnection, document all correspondence and ask for the specific rule citation in writing.
Applications & Forms
- Baltimore building and electrical permit applications: submit via the Baltimore Permits portal; permit fees and plan requirements are listed on the city permit pages (see city link).[1]
- Utility interconnection application: use your delivery utility’s official interconnection form; the utility documents required for review and commissioning are provided by the utility (see utility link).[2]
- Net metering enrollment and crediting: net energy metering rules and any required utility enrollment forms are set out by the Maryland Public Service Commission and implemented by utilities; check the PSC page for program summaries and limits.[3]
Installation best practices
- Use a licensed electrician and provide stamped plans if required by the city.
- Keep cut sheets, inverter settings and UL listings ready for inspector review.
- Schedule city inspections early; utilities typically require final city sign-off before meter work.
Retain inspection reports and the interconnection approval letter for your records and future property transfers.
FAQ
- Do I need a permit to install solar in Baltimore?
- Yes. Baltimore requires building and electrical permits for rooftop and most distributed generation installations; apply through the city permits portal and follow plan submission requirements.[1]
- How long does interconnection take?
- Timeframes vary by utility and system size; the utility’s interconnection review and commissioning schedule is published by the delivery company and governed by Maryland PSC interconnection procedures.[2][3]
- Will I receive credits for excess solar generation?
- Maryland net energy metering rules provide for credits or netting under specific program limits; the PSC page summarizes eligibility and crediting mechanisms—check your utility for implementation details.[3]
How-To
- Confirm site eligibility and system size with your installer and request required documents.
- Apply for Baltimore building and electrical permits via the city portal and upload plans.[1]
- Submit the utility interconnection application and required technical documents to your delivery utility.[2]
- Complete city inspections and obtain final city sign-off.
- Coordinate utility commissioning, meter exchange and net metering enrollment; retain approval letters and the executed interconnection agreement.
Key Takeaways
- Both city permits and utility interconnection approvals are required to operate legally in Baltimore.
- Maryland PSC rules govern net metering credits; utilities implement the program mechanics.
Help and Support / Resources
- Baltimore City Permits & Inspections
- Baltimore Office of Sustainability
- Maryland Public Service Commission
- Baltimore Gas and Electric (BGE) customer interconnection info