
Residential Solar Installation in Northern Virginia
AJ Long Electric installs solar. The array, the interconnection, and the electrical system behind it are one project —...

Residential solar designed and installed with the panel, battery, and EV charging in one electrical plan. Trusted by homeowners throughout Prince George's County since 1996.
AJ Long Electric provides professional residential solar installation services in Upper Marlboro, MD. Our licensed electricians have served Prince George's County for over four decades, delivering safe, code-compliant electrical work for homeowners and businesses. With deep experience across every type of residential electrical project, we bring both technical expertise and local knowledge to every job we complete in the Upper Marlboro area. In Upper Marlboro specifically, we most often work on rural-edge and large-lot homes around the county seat, where 200A services with outbuilding subpanels are common — a backdrop that shapes how we approach residential solar installation here.
In neighborhoods like Upper Marlboro Town, Brandywine, Marlton, Croom, Aquasco, near landmarks such as Prince George's County Courthouse, Show Place Arena, Watkins Regional Park, we have completed countless residential solar installation projects. Our familiarity with local building codes, inspection requirements, and the common electrical challenges found in Prince George's County homes ensures your project is completed correctly the first time. On the ground in Upper Marlboro, the issue we run into most is outbuilding and well-pump circuits on larger Upper Marlboro lots. Because the work is permitted through the Prince George's County Department of Permitting, Inspections & Enforcement, we pull the permit, schedule the inspection, and verify grounding to NEC 250 before we close out — and Prince George's County permit fees apply and are itemized.

Our licensed electricians serving Prince George's County
When you choose AJ Long Electric for residential solar installation in Upper Marlboro, you are partnering with a team that understands your community. We have been serving Prince George's County since 1996, building relationships with homeowners in Upper Marlboro Town, Brandywine, Marlton, Croom, Aquasco, and earning a reputation for excellence near Prince George's County Courthouse, Show Place Arena, Watkins Regional Park. Our electricians are familiar with the unique electrical challenges in Upper Marlboro, including Historic-home rewiring and circuit tracing in centuries-old town center, Service-entrance rebuilds on rural overhead services, Battery backup power stations and portable generator hookups for rural-property reliability. This local expertise means faster service, accurate estimates, and installations that meet both your needs and local code requirements.
Licensed & Insured
Since 1996
5-Star Rated
Listed modules, inverters, and interconnection — not a referral to a solar-only shop.
The panel, EV circuit, battery, and array are planned together so the can is not full the day the solar shows up.
A load calculation decides whether the existing service can accept generation plus the house load.
Permit, inspection, and interconnection steps for the serving utility are confirmed before equipment is ordered.
The federal 25D 30% residential credit ended for new expenditures after December 31, 2025. We do not sell a credit we cannot deliver.
AJ Long Electric installs residential solar. The array, the interconnection, and the electrical system behind it are one project: service capacity, busbar rating, grounding, inverter or backfeed connection, and how the system will share a panel with an EV charger or a home battery. We confirm the roof and electrical conditions, write the scope, pull the electrical permit path, and coordinate utility interconnection for the address. Panel upgrades, Level 2 charging, and wall-pack batteries are quoted in the same visit when they belong in the design. Roofing or structural work outside our electrical and array scope is identified in the proposal instead of buried in a later change order. In Upper Marlboro, we have seen how historic-home rewiring and circuit tracing in centuries-old town center affects homeowners. That is why we take the time to assess your entire electrical system and recommend solutions that address both immediate needs and long-term reliability. Every residential solar installation project we complete in Prince George's County includes a thorough inspection, detailed documentation, and our commitment to your complete satisfaction.
| Typical cost in Upper Marlboro | Quoted per projectPrince George's County permit fees apply and are itemized. |
|---|---|
| Typical timeline | Quoted per project after site review |
| Permit authority | Prince George's County Department of Permitting, Inspections & EnforcementWe pull the permit and schedule the Prince George's County inspection on your behalf. |
| Applicable code standard | National Electrical Code (NFPA 70), as adopted in MD |
| Most common local condition | Outbuilding and well-pump circuits on larger Upper Marlboro lots. |
Permit fees, scope, and existing-condition surprises affect final pricing. Verify current requirements with the Prince George's County Department of Permitting, Inspections & Enforcement and review the NFPA 70 (National Electrical Code).
Roof, service size, busbar, existing EV or battery loads, and the interconnection method are documented.
Array, electrical, panel or battery work, and any excluded roofing or structural items are itemized.
Electrical permit and interconnection requirements are confirmed for the address before equipment is ordered.
Approved array and electrical scope is installed to the listed equipment instructions.
We coordinate the electrical inspection and the utility permission-to-operate steps in the defined scope.
Yes. We install residential solar and the electrical interconnection that makes it legal: panel capacity, grounding, inverter or backfeed connection, permit path, and utility coordination for the address. Roofing or structural work outside that scope is called out in the written proposal.
Array pricing is quoted per project after a site and electrical review — roof, service size, inverter type, and whether a panel upgrade or battery is in the same job. A 200-amp panel upgrade that the array requires typically falls in the $3,500-$7,500 band and is itemized separately.
The Section 25D residential clean energy credit ended for new qualifying expenditures after December 31, 2025. AJ Long Electric does not provide tax advice. Confirm any remaining commercial or third-party-owned credit path with a qualified tax professional.
Yes. That is the point. One load calculation, one permit path, one crew that already does the panel and the charger. Solar-ready panel work is the electrical preparation inside that job when the array is staged.
No. This offer is residential. Light-commercial electrical is a separate service and does not include large commercial arrays.
Upper Marlboro homes are mostly rural-edge and large-lot homes around the county seat, so we frequently encounter 200A services with outbuilding subpanels. The most common situation we address is outbuilding and well-pump circuits on larger Upper Marlboro lots. Permits for this work go through the Prince George's County Department of Permitting, Inspections & Enforcement, and Prince George's County permit fees apply and are itemized. That local knowledge means AJ Long Electric arrives prepared for the conditions specific to Upper Marlboro rather than treating it like any other Prince George's County job.
Residential Solar Installation costs in Upper Marlboro typically range from Quoted per project depending on scope and complexity. AJ Long Electric provides free written estimates for all residential solar installation projects in Prince George's County. Call (571) 444-6886 for an accurate quote specific to your home.
Most residential solar installation projects in Prince George's County require an electrical permit from the Prince George's County building department. AJ Long Electric handles all permit applications and scheduling of required inspections as part of our service, ensuring your project meets all Maryland electrical codes.
Residential Solar Installation projects in Upper Marlboro typically take Quoted per project after site review to complete. Timelines can vary based on the scope of work, permit approval speed in Prince George's County, and any unforeseen conditions found in your home's existing electrical system.
AJ Long Electric has served the region since 1996. We are a licensed, insured electrical contractor led by a master electrician, and we define the scope, access assumptions, exclusions, and project-specific coordination before authorized work begins.
Scheduling depends on the current workload and the project scope. Call (571) 444-6886 or request an appointment online and we will confirm the earliest available time for your Upper Marlboro address.
Typical Price Range: Quoted per project
Contact us for a free estimate tailored to your Upper Marlboro home.
Ready to discuss residential solar installation for your Upper Marlboro home? Contact AJ Long Electric today at (571) 444-6886 for a free consultation. We proudly serve all of Prince George's County, including the neighborhoods of Upper Marlboro Town, Brandywine, Marlton, Croom, Aquasco. Our team is standing by to answer your questions and schedule a convenient appointment.
We also provide professional residential solar installation services in these nearby communities.
Expert Resources
Guides our licensed electricians point residential solar installation customers to most often.

AJ Long Electric installs solar. The array, the interconnection, and the electrical system behind it are one project —...

A solar-ready panel is an electrical condition — documented capacity and backfeed space — not a roof full of modules....

Utility interconnection is paperwork plus a panel that can accept generation. AJ Long Electric does the electrical half...

The charger is the easy part. The panel math for a future battery and solar backfeed is what you want decided on the...
Guides
Expert electrical guides to help you make informed decisions.
A solar-ready panel is documented busbar capacity, backfeed space, and grounding — not modules on the roof. Plan it with EV and battery loads so you do not replace the panel twice.
A comprehensive guide to electrical panel upgrades covering signs you need an upgrade, the process, costs, and what to expect.
Listed EcoFlow, Bluetti, and Anker SOLIX wall packs versus a portable generator hookup. What the electrical scope includes, what it costs, and when a smart home panel is worth it.
Navigate the electrical permit process in Northern Virginia with confidence. Learn requirements for Fairfax County, Arlington, Alexandria, and surrounding areas.
Related Services
Explore our other professional electrical services.
Property-specific electrical panel replacement and service-capacity planning, with load calculations, utility coordination, labeling, and permit-path confirmation.
Learn MoreListed home battery and wall-pack installation with panel integration, transfer equipment, circuit selection, and permit-path confirmation.
Learn MoreProperty-specific Level 2 EV charger installation with panel-capacity review, a dedicated circuit, equipment connection, testing, and permit-path confirmation.
Learn MoreSmart panel and smart-breaker installation for circuit-level monitoring, load management, and battery or EV coordination.
Learn More