How can REITs and commercial property owners add solar and storage?

Commercial roofs and parking lots are a large share of U.S. C&I solar, but the ownership question is different from a ground-mount plant with one offtaker. REITs and property owners decide who holds the system, who keeps savings and tax attributes, and how tenants are billed—then whether storage belongs next to the array.

What are the ways a property owner can host solar?

There is no single host structure. The usual paths differ on who owns the equipment and who claims the economics:

• Owner-funded, on balance sheet. The property owner or a related entity owns the system. Depreciation, any remaining credits, operating-cost savings, and energy revenue stay with the owner. Capex and operating responsibility sit there as well.
• Roof or site lease to a developer. The owner grants space; a third party owns and operates the array and pays rent. The owner gets lease income and a hosted clean-energy story, not the tax attributes or most of the energy savings.
• Third-party PPA. A developer owns the system and sells power to the building or the owner at a contracted rate. The offtaker locks in a portion of load without buying the equipment.
• Community-solar host. Some sites host a shared array and take a host payment or a subscriber allocation rather than offsetting only on-site load.

Behind-the-meter systems offset the building's retail load. Who owns the RECs still has to be stated in the contract if the owner or tenants will make an environmental claim.

How do REITs structure solar ownership?

A REIT can host or own solar, but the structure is a facts-and-counsel determination—not an opinion we give. Common approaches include:

• Ownership through a taxable REIT subsidiary (TRS) so the energy asset sits outside the REIT's income tests
• Net-lease expense-recovery mechanics that treat a share of system cost as a recoverable operating expense
• Intercompany leases that keep the energy asset in one entity and the real estate in another

The point of these structures is to keep REIT qualification and the energy economics from colliding. Tax, REIT, and securities counsel decide what is available for a given portfolio, vintage, and lease form. We describe structures and coordinate with that counsel; we do not provide tax opinions.

Owner-funded models are why many REITs and landlords prefer to keep the system rather than sign a long roof lease: depreciation, available credits, and the operating-cost reduction accrue to the property—not to a third-party energy company.

How does tenant billing work in multi-tenant buildings?

Billing follows the meter and the lease, not the panel layout.

• Common-area load is the simplest offset: garage lighting, elevators, HVAC serving shared space, and house power sit on the owner's meter.
• Master-metered buildings can allocate solar savings through the lease or a CAM true-up if the documents allow it.
• Separately metered tenants usually keep their own utility account. Passing through solar then depends on submetering, a behind-the-meter allocation, or a tariff that permits on-site resale.

State rules on resale, net metering, and community-choice or successor tariffs vary. A structure that works in one utility territory can be unavailable in the next. Lease remaining term matters as much as the tariff: a ten-year array on a building with three years of lease runway is a tenant-credit problem, not an irradiance problem.

What should owners check before committing?

Screen the portfolio before a term sheet. The items that kill otherwise attractive roofs are usually not module price:

• Roof age, warranty, structural load, and the next reroof date
• Remaining tenant lease term and whether the form allows recovery or allocation
• The applicable tariff, export rate, and interconnection path
• Whether battery storage earns its keep on demand charges, resilience, or time-of-use shifting
• Who will monitor, maintain, and report after commercial operation

Solar-plus-storage is a design choice, not a default. Storage helps when the tariff or the tenant use case pays for duration; it is extra capex when the building only needs midday kWh.

How Sunlight helps

Sunlight Energy Investments works with REITs and commercial owners on owner-funded solar and storage: ranking sites, supporting capital planning, coordinating REIT-aware structures with the owner's counsel, delivering construction, and managing operations and reporting so the owner does not need an in-house energy team.

Property owners screening a portfolio can explore real estate solar and storage, asset management, or contact our team.