Buying a home with solar panels already on the roof sounds like a win. Lower electric bills, clean energy, and no installation project to deal with.
But a solar system is a major piece of equipment, just like the roof it sits on, the HVAC, the water heater, or the electrical panel. And like any of those, it needs to be understood before you rely on it.
Some systems are owned outright. Some are leased. Some still have active warranties and working monitoring. Others were installed years ago by a company that no longer exists.
If you recently bought a home in New Jersey with solar panels, here are ten things to check first.
1. Find Out Who Actually Owns the System
This is the most important question, and it’s simpler than it sounds: do you own the panels, or does someone else?
The previous homeowner may have paid for the system in full, financed it with a solar loan, signed a lease, or entered into a power purchase agreement (PPA).
Ownership determines what you can do with the system. If it’s owned outright, you usually have more control over repairs, monitoring, upgrades, and service decisions. If it’s leased or under a PPA, a third-party company may still be involved, and that company may control service terms, billing, and what changes you’re allowed to make.
If the system is leased or under a PPA, do not assume you can modify, remove, or expand it without checking the contract first.
Start by gathering the solar paperwork from your home purchase: the installation agreement, financing documents, lease terms, warranty info, and any transfer forms. If you don’t have those documents, that’s the first problem to solve.
2. Get Access to Solar Monitoring
Most solar systems include an app or online portal that shows real-time and historical electricity production. That monitoring access doesn’t always transfer cleanly during a home sale.
Sometimes the old homeowner still has the login. Sometimes it’s tied to a defunct email address. Sometimes the system is producing power just fine, but the new owner has no way to see it. Other times, monitoring has been offline for months and nobody noticed.
Monitoring matters because it’s your early warning system. Without it, you won’t know if the system is producing normally, underperforming, or sitting idle.
Here’s what to check:
- Do you have the monitoring app login?
- Is the dashboard showing current production data?
- Are there gaps, such as missing days or weeks of data?
- Does production look reasonable for the season?
- Is the system connected to Wi-Fi or cellular for reporting?
If monitoring isn’t working, that doesn’t necessarily mean the panels are broken. It could be a communication issue. But it still needs to be fixed. You shouldn’t have to guess whether your system is doing its job.
3. Review Your Electric Bill After the First Full Month
A common expectation is that solar panels make the electric bill disappear. Sometimes the bill drops dramatically. Sometimes it doesn’t. The reality depends on system size, household usage, weather, shading, utility billing structure, and whether the system is actually working correctly.
In New Jersey, solar customers can earn bill credits when their system sends excess electricity back to the grid. This is called net metering. When your panels produce more power than your home is using, the utility credits your account for the surplus.
That means your bill can still show charges, credits, delivery fees, and usage from times when the home needed more power than the panels were generating.
After you move in, compare a few months of bills and look for:
- Whether solar credits are appearing
- Whether usage seems unusually high
- Whether the bill changed noticeably after you moved in
- Whether the utility account is properly linked to the solar system
- Whether the system appears large enough for your household
One high bill doesn’t mean the system is broken. But if bills consistently run higher than expected, it’s worth investigating.
4. Confirm Whether Solar Incentive Payments Transfer to You
New Jersey has several solar incentive programs, and the one that applies to your system depends on when it was installed.
Your system may be registered under the ADI (Administratively Determined Incentive) program, SREC-II, TREC, or an older SREC structure. You don’t need to become an expert on all of these. What you do need to know is whether any incentive account, payment stream, or registration needs to be transferred or updated under your name.
Check your closing documents and solar paperwork for terms like SREC, TREC, SREC-II, ADI, SuSI, solar incentive registration, aggregator, or production reporting.
If none of this was addressed during the sale, you may need professional help tracing what program the system is enrolled in, if any, and whether you’re entitled to those payments.
Incentive rights can depend on the original agreement, program registration, and sale paperwork.
5. Check the Age and Condition of the Roof
Solar panels can last 25 years or more. The roof underneath them may not.
If the roof is in good shape, great. But if it’s approaching the end of its life, you’ll eventually need to remove and reinstall the panels to complete the roofing work, and that adds cost and complexity.
Take stock of:
- How old the roof is
- Whether there are signs of leaks, especially around panel mounting points
- Whether shingles are curling, cracking, or missing
- Whether the roof was replaced before the solar installation
- Whether the installer documented the roof’s condition beforehand
This isn’t a reason to panic. It’s a reason to plan. A roof issue is always more complicated when panels are sitting on top of it, so it’s better to get ahead of it than wait for a leak.
6. Inspect the Inverter and Main Equipment
You don’t need to become a solar technician, but you should know where the main equipment lives and what it looks like when things are normal.
Most systems have equipment mounted near the electric meter, in the garage, in the basement, or on an exterior wall. Depending on the setup, this may include an inverter, disconnects, meters, labels, and monitoring hardware.
Walk by and look for obvious issues:
- Warning lights or error codes on the inverter
- Blank screens where there should be a display
- Damaged conduit or loose wiring
- Water damage or corrosion
- Missing labels or equipment that looks disconnected
Do not open electrical equipment or try to fix anything yourself. The goal here is just awareness. Know what looks normal so you can spot when something doesn’t, and call a professional when needed.
7. Check for Critter Guards
Birds, squirrels, and other animals love nesting under solar panels. That can lead to chewed wiring, debris buildup, and avoidable service calls, especially if the home has trees nearby or you notice birds gathering around the roof.
From the ground, look for a protective mesh or barrier around the panel edges. If there isn’t one, ask a solar professional whether critter guards make sense for your property.
This is a small detail that can prevent expensive problems down the road.
8. Gather All Warranty Information
Solar warranties can be confusing because there are usually several overlapping ones. A system may have separate warranties covering the panels, the inverter, workmanship, roof penetrations, monitoring equipment, and battery storage, if applicable.
Some warranties come from the manufacturer. Others come from the installer. If the original installer is no longer in business, the manufacturer warranty may still be valid, but getting service could be more complicated.
The main takeaway: gather the warranty documents now, while everything is working. You don’t want to be searching for paperwork after something breaks.
If the original installer is no longer available, Solar Me can inspect the system, restore monitoring, handle repairs, and help you understand your service options going forward.
9. Evaluate Whether the System Matches Your Energy Needs
The solar system was designed for the previous owner’s energy usage, not yours.
Maybe the old owner lived alone and you have a family of five. Maybe they rarely used air conditioning and you work from home all summer. Maybe you’ve added an EV, a hot tub, a finished basement, or new appliances.
The system could be working perfectly and still not cover your electricity needs.
After a few months in the home, compare your monthly usage against solar production, electric bills, and seasonal patterns. Pay attention to any major new electrical loads you’ve introduced.
If the system is undersized for your household, you may want to explore adding panels, improving energy use, or adding battery storage. But the first step is understanding what the current system is actually producing versus what you’re consuming.
10. Schedule a Professional Solar Inspection
If you bought a home with solar panels and nobody clearly explained the system to you during the sale, that alone is reason enough to have it reviewed.
A professional inspection can answer the questions that matter most:
- Is the system producing electricity?
- Is monitoring connected and reporting accurately?
- Are there visible equipment issues or error codes?
- Are the panels damaged, dirty, or heavily shaded?
- Is there evidence of animal damage?
- Are there visible safety or code-related concerns?
- Is the setup ready for future upgrades or battery storage?
You don’t need to wait for something to fail. A baseline inspection shortly after moving in gives you a clear picture of what you have and where things stand.
When to Call Solar Me
If you recently bought a home in New Jersey with solar panels, Solar Me can help you figure out what you have, whether it’s working, and what to do next.
That might include restoring monitoring access, inspecting the system, troubleshooting performance issues, handling repairs, helping with service when the original installer is unavailable, coordinating panel removal for roof work, or planning future upgrades like battery storage.
The most important thing is not to ignore the system just because it’s already on the roof. Solar panels are a real asset for your home, but only if you understand how the system is set up and whether it’s performing the way it should.
Need help with an existing solar system? Contact Solar Me to schedule a review and get clear answers before small issues become bigger problems.
