Solar leasing vs PPA in Singapore

If you manage operations or run a business out of a JTC property, you've likely come across two terms that seem to describe different things: "solar leasing" and "PPA." JTC uses the first. Solar vendors, financiers, and most of the market use the second. The confusion is understandable, and it matters, because it can lead operations managers and business owners to search for, compare, and evaluate options that are actually the same offer described two different ways.

This article clarifies the terminology, explains how the model works in practice for a JTC tenant, and outlines what to check before signing anything.

TL;DR - A simple guide to solar leasing vs PPA for JTC tenants

• "Solar leasing" (JTC's term) and "PPA," or Power Purchase Agreement (the market's term), refer to the same underlying arrangement.
• A vendor designs, funds, installs, owns, and maintains the solar system on your roof. You pay nothing upfront.
• You buy the electricity the system generates, at a rate lower than your current grid tariff, for the duration of the agreement.
• This is distinct from rooftop licensing, where a vendor pays you rent and exports power to the grid rather than selling it to you.
• It is also distinct from direct ownership, where you buy the system outright and keep the full savings, but carry the capital cost and the maintenance responsibility.
• The contract term should be matched to your remaining JTC lease term, not treated as a generic 15–20 year default.
• Whether solar is mandatory or voluntary for your site depends on rooftop area and remaining lease length, and a PPA does not remove that obligation, it only removes the capital cost of meeting it.

JTC's official guidance for lessees describes three solar deployment models: rooftop licensing, solar leasing, and direct ownership. Solar leasing, in JTC's own description, involves a vendor installing panels on the premises and then selling the generated electricity back to the lessee at a discounted rate, with no capital cost to the lessee.

That description is structurally a Power Purchase Agreement (PPA), a contract where a third party owns and operates a generation asset, and the host site agrees to purchase the power it produces at an agreed rate. Solar developers, banks, and sustainability consultants across Singapore and the region use "PPA" because it's the internationally recognised term for this financing structure. JTC uses "solar leasing" in its own tenancy documentation. They describe the same commercial arrangement from two different vantage points, one focused on the underlying legal structure, the other on how JTC categorises it within its tenancy framework.

For an operations manager searching for options, this matters practically. Searching only "JTC solar leasing" will surface JTC's own guidance and a narrower set of results. Searching "solar PPA Singapore" will surface a much wider field of vendors, financing structures, and comparison content, some of which is written for landed residential or utility-scale contexts rather than industrial tenants. Knowing that both terms point to the same model means you can evaluate proposals from either search path without assuming they're offering different things.

How the model works for a JTC tenant

The mechanics are straightforward. A solar provider assesses your rooftop, designs a system sized to your site and consumption profile, and funds the full cost of installation. You sign an agreement to purchase the electricity that system generates, at a rate set below your existing grid tariff, for a fixed term. The provider retains ownership of the equipment and is responsible for its performance and upkeep. You are not carrying it on your balance sheet, and you are not the one troubleshooting an inverter fault at 7am.

The part that requires more care, and the part generic proposals sometimes gloss over, is the term length against your actual JTC lease position. A PPA is a long-term commitment, typically running well over a decade. If your remaining lease term is shorter than the proposed contract term, or if a lease renewal, assignment, or redevelopment is plausible within that window, the agreement needs a clear mechanism for what happens next; whether that's an assignment clause, an early-exit provision, or a buyout option. This is also where JTC's mandatory deployment thresholds are relevant background: if your site has at least 600 sqm of contiguous rooftop area and 10 years or more of remaining lease term, and your lease is new, renewed, or (from June 2026) assigned, transferred, or redeveloped, solar deployment isn't optional. A PPA doesn't change that obligation. It changes who pays for meeting it.

What to check before signing a solar contract

Because the terminology gap creates room for inconsistent proposals, a few points are worth confirming regardless of which term the vendor uses:

• Whether the quoted discount is benchmarked against your actual current tariff, not a generic assumption.
• What happens to the system and the contract if your lease is not renewed, or if the property is reassigned or redeveloped before the PPA term ends.
• Who is responsible for JTC's submission requirements, including plan endorsement and as-built documentation, if your site falls under mandatory deployment.
• Whether installation, maintenance, and monitoring sit with a single accountable party, or are split across subcontractors.
• Who retains ownership of any Renewable Energy Certificates generated by the system, which is increasingly relevant if your own business reports on ESG metrics.

FAQ - solar leasing vs PPA for JTC tenants

Q: Is a solar PPA the same as what JTC calls solar leasing?
Yes. Both describe a vendor-owned system where you buy the electricity generated at a discounted rate, with no upfront capital cost to you.

Q: Does signing a PPA mean I no longer need to worry about JTC's solar requirements?
No. If your site meets JTC's mandatory deployment thresholds, the obligation to deploy solar still applies. A PPA removes the capital burden of complying, it doesn't remove the compliance requirement itself.

Q: How is a PPA different from rooftop licensing?
Under rooftop licensing, the vendor pays you rent to use your roof and exports the power to the grid. Under a PPA or solar leasing, you buy the power the system generates for your own consumption. They're both zero-capex to you, but the commercial flow is reversed.

Q: What if my JTC lease has fewer years left than the proposed PPA term?
This should be addressed directly in the contract before signing, through an assignment clause, an early-exit provision, or by structuring the term to match your lease horizon. A site-specific design process should account for this from the outset rather than applying a standard contract length.

Q: Do I need JTC's approval to enter a PPA?
If your deployment is voluntary, you don't need separate consent for the solar arrangement itself, though you still need JTC's consent for any related addition or alteration works. If your deployment is mandatory, you'll also have submission requirements during plan endorsement and at project completion.

If you're weighing a solar PPA for a JTC property, or trying to work out whether your site falls under mandatory or voluntary deployment, Eigen Energy can assess your rooftop, map the arrangement against your actual lease term, and handle the JTC submission process as part of a single turnkey engagement. Speak to us by connecting with us here: enquiry form