Start with whether you control a roof. If you do, and the roof can carry an array, the ordinary design path applies and the checks in the pre-install article come first. If you do not, solar is still sometimes available, and it is a different product: a balcony or plug-in kit only where that product is listed for the use and the local rule allows it, a community-solar subscription that is a bill credit rather than hardware on your home, or an installation the landlord agrees to in writing. Skipping the go or no-go and buying a kit because a video showed one on a railing is how tenants end up with equipment they are not allowed to energize.
| Your situation | A path that can be real | Stop |
|---|---|---|
| You control a sound roof | A normal rooftop design after the structural and utility checks | A roof that fails structure, shade, or the interconnection |
| You rent, and the landlord agrees in writing | Only the system the agreement names, insured as the agreement requires | A silent install, or a verbal yes you cannot show later |
| A balcony or plug-in kit | A product listed for that use, in a place that allows it | A kit that is legal in some other country and unspoken of in yours |
| Community solar or a similar program | A bill credit under that program's contract | Treating the credit as owned panels, or as backup power |
Balcony kits and community credits are different products
Some jurisdictions allow a small array on a balcony or a plug-in device that a resident may connect under stated conditions. Others forbid any generating equipment a tenant plugs into household wiring. The permission is local. A product page, a shipping company, and a neighbor's story from another country are not permission. Buy a balcony kit only when two documents agree: the listing that says this product may be used that way, and the local rule that says this address may host it. If either document is missing, the answer is no for now. What to settle before a rooftop solar installation still matters if the alternative is to put modules on a roof you do control. It does not grant a balcony.
Community solar, and programs with other names that do the same job, let you subscribe to a share of a remote array. The benefit, when the program is real, shows up as a credit or a charge adjustment on the bill. You do not own the roof, you do not wash the modules, and you do not maintain an inverter. The credit follows the contract. Programs change rates, exit rules, and who may subscribe. Read the term, the cancellation, and what happens when you move. How on-site export is valued under a tariff is a different mechanism, explained in what net metering means. A community credit can resemble a bill reduction and still share nothing with net metering's rules.
Neither a balcony kit nor a remote subscription carries the apartment through a utility outage. The remote array is elsewhere. A plug-in product that follows the grid stops when the grid stops, unless its own listing says it forms a backup, which most of these programs do not. Outage power at the dwelling is the design in home battery backup for outages, and it needs space, permission, and equipment at the dwelling. Comparing a subscription fee with an owned rooftop system also needs an honest payback method. The pieces of that method are in how a solar payback period is calculated. Drop the subscription into that method as a bill change you can point at in the contract. Do not drop it in as if you owned the kilowatt-hours.
The landlord's yes has to be a document
A tenant who wants modules, a balcony kit, or even a subscription that requires a meter change needs the landlord's written agreement when the lease or the building rule reserves that decision. The writing should say who owns the equipment, who insures it, who maintains it, what happens at the end of the lease, and whether you must remove it and repair the mounting. A verbal yes from a superintendent is a memory. New owners of the building will not share the memory.
Apartments also have fire paths, railing load limits, and a utility meter that may serve more than one story. A kit that is light enough to lift can still be too heavy for a railing, or illegal on an egress balcony. The listing's mounting limits and the building's rules both apply. If they conflict, you do not get the more convenient one. Condo and co-op boards add another written layer. Budget the time to obtain it before you budget the hardware.
Frequently asked questions
Will community solar run my home during an outage?
The array is on someone else's site. Your service drops with the utility unless you have a separate backup system at the dwelling. A bill credit does not include an inverter in your hallway.
Does a balcony kit feed the whole apartment?
It feeds only what its listing and the local rule allow, which may be a single approved connection with a limit printed on that product. Read those two documents. A watt figure from another market is not your cap.
