The contract is signed, but the solar project is not yet on the roof. Homeowners often ask what happens after solar contract signing because the period between a sales conversation and an operating system can feel quiet. Behind the scenes, however, your installer is moving through design, approvals, scheduling, and utility requirements that determine when your system can start producing power.
The exact timeline depends on your utility, local permitting office, roof complexity, financing, and whether upgrades are needed. A straightforward project may move quickly. A project with a main-panel upgrade, a difficult roof, HOA review, or a backed-up utility can take longer. Knowing the sequence helps you track progress, ask useful questions, and avoid mistaking normal processing time for a stalled project.
Review the contract before the project advances
A signed agreement starts the project, but it is still worth reviewing the documents carefully while details are fresh. Confirm the equipment listed, system size, estimated production, payment terms, warranty providers, and who is responsible for permits, utility paperwork, and roof repairs if needed.
Pay close attention to cancellation rights and deadlines. Federal and state rules can provide cancellation protections in certain sales situations, but the terms vary. If something differs from what was represented during the sales process, raise it in writing immediately. It is much easier to resolve an equipment substitution, financing question, or scope issue before engineering and permitting are underway.
If you are financing the project, this is also the time to understand when payments begin. Some loans do not require payment until installation or permission to operate, while others have different milestones. With a lease or power purchase agreement, review the escalator, transfer terms if you sell the home, and the party responsible for monitoring and maintenance.
Site survey and final solar design
Most installers schedule a site survey soon after the contract is executed. This is more detailed than the initial sales assessment. A technician may inspect roof condition, measure roof planes, photograph obstructions, verify attic access, examine your electrical panel, and check the route for conduit and equipment.
This visit can change the original plan. Satellite imagery and utility-bill estimates are useful for proposals, but they cannot always reveal a worn roof section, limited panel capacity, a shaded area, or a structural issue. The installer may recommend a smaller or differently arranged array, an electrical upgrade, or a roof repair before installation. Those changes should be clearly explained, including any effect on price, production, or schedule.
After the site survey, the design team prepares construction documents. These typically show panel placement, racking, wiring, inverter or battery location, safety labels, and electrical connections. A structural review confirms the roof can support the equipment and local wind or snow-load requirements. The system should be designed around your actual home, not only the original quote.
What homeowners should confirm at this stage
Ask to see the final layout and make sure you understand visible equipment locations. Consider how panels will look from the street, where conduit will run, and where a battery, disconnect, or inverter will be mounted. If access or appearance matters to you, speak up before permits are submitted. Changes after approval can mean revised plans and added delays.
Permits, HOA approval, and utility applications
Once the design is complete, your installer usually submits permit applications to the local authority having jurisdiction. Requirements vary widely by city and county. Some permit offices review residential solar plans within days; others may take several weeks, especially during busy construction seasons.
If your neighborhood has an HOA, it may require a separate architectural application. Your installer may provide drawings and product specifications, but homeowners are often responsible for submitting HOA materials or obtaining signatures. Check the rules early. State solar-access laws may limit an HOA's ability to prohibit solar, but associations can still set reasonable placement and aesthetic requirements.
At the same time, the installer submits an interconnection application to your electric utility. This tells the utility that your home will have a generating system connected to its grid. Depending on the utility and system design, the application may address net metering or another export-compensation program, meter changes, and technical requirements for disconnects and anti-islanding protection.
Do not assume a signed contract locks in every utility rate or credit structure. Programs can have enrollment limits, deadlines, and system-specific rules. Ask your installer which program applies to your project and what assumption was used in the savings estimate.
Scheduling the installation
After permits are approved and equipment is available, the installation is scheduled. A typical rooftop solar installation takes one or two days, although larger systems, battery storage, complex roof work, or electrical upgrades can extend the job.
Before the crew arrives, clear access to the driveway, garage, electrical panel, and any area where equipment will be installed. Move vehicles if requested, secure pets, and plan for normal construction noise. The crew may need to temporarily shut off electricity while work is performed. If you work from home or rely on medical equipment, discuss outage timing with the project manager in advance.
Installation generally includes mounting roof attachments, securing racking, placing panels, running wiring, and installing electrical equipment. The crew also installs required labels and may take final photos for inspection records. You do not need to supervise every step, but be available for questions about access, equipment placement, or unexpected site conditions.
A professional installation should leave you with a clear explanation of what was installed and where. Before the crew leaves, inspect the visible work from the ground, confirm that agreed-upon equipment is in place, and ask how to report concerns. Do not climb onto the roof or open electrical equipment yourself.
Inspection and permission to operate
Installation does not mean you should turn the system on. The local building department normally inspects the work first. The inspector checks that the installation matches approved plans and meets electrical, structural, and fire-safety requirements. If corrections are required, your installer should complete them and arrange a follow-up inspection.
After local approval, the utility completes its final interconnection review. It may install or reprogram a meter, verify paperwork, and issue permission to operate, often called PTO. Only after PTO should the system be activated for normal grid-connected operation.
This is one of the most variable parts of the process. Some utilities issue PTO quickly after receiving a passed inspection; others have longer queues. Your installer should be able to tell you which approval is pending and whether it needs any action from you. Keep copies of your contract, permits, inspection approval, interconnection documents, equipment warranties, and final system design in a single folder.
Turn on the system and watch the first bills
When PTO arrives, the installer may activate the system remotely, schedule a commissioning visit, or provide instructions for startup. You should receive access to a monitoring app or portal that shows production. Production data is useful, but daily output will rise and fall with weather, seasons, shading, and temperature. One cloudy week is not a performance verdict.
Your first electric bills can be confusing because billing cycles rarely line up perfectly with activation. You may see delivery charges, fixed utility fees, or charges from days before the system started producing. Solar reduces the electricity you buy from the grid; it does not usually erase every utility charge.
Compare production against the monitoring system over several months, not a few days. Also track household electricity use. A new electric vehicle, pool pump, heat pump, or changes in thermostat habits can increase consumption even when solar production is meeting expectations.
If the timeline goes quiet
A quiet period is not always a problem, but you deserve a direct status update. Ask which milestone is complete, which organization has the next action, and the expected date for the next step. The most useful question is not simply, “When will it be done?” It is, “What approval or task is currently preventing installation or PTO?”
Solar is a long-term home-energy investment, and the work after signing is what turns a proposal into a compliant, operating system. Stay engaged at the design and approval stages, keep your documents organized, and treat the first year of monitoring as your opportunity to understand how your home truly uses energy.