Commercial Solar
Financing Commercial Solar: Cash, Loan or PPA
Choosing how to pay for a commercial solar system matters almost as much as the system itself. The right structure depends on your cash position, tax situation and how quickly you want to own the asset.
The three ways businesses fund solar
Most commercial solar and battery projects are funded one of three ways: paying cash upfront, borrowing through a loan or lease, or signing a Power Purchase Agreement (PPA) where a third party owns the system and you buy the power it generates.
Each has a different impact on your balance sheet, your cash flow and how much of the long-term benefit you keep. Understanding the trade-offs early makes the rest of the decision much simpler.
- Cash: you own the asset outright from day one
- Loan or lease: you own it, spread over time, using borrowed funds
- PPA: a provider owns and maintains it, you buy the energy
Paying cash
Buying outright means the system is yours from the moment it's commissioned, and every dollar of energy it offsets flows straight to your bottom line. There's no interest, no ongoing finance obligation and the full asset value sits on your books.
The obvious trade-off is the upfront capital. For many businesses that money could be working elsewhere, so it's worth weighing the return on a solar spend against other uses of the same funds. This is where a site review helps, because the real numbers depend on your tariff and load profile.
- No interest or finance costs over the life of the system
- You keep the full benefit of every kWh generated
- Ties up capital that might earn a return elsewhere
Loans and leases
A loan or equipment lease lets you install now and pay over time, so the system can start reducing bills before it's fully paid off. In many cases the energy savings help offset the repayments, which softens the impact on day-to-day cash flow.
You still own the asset (or own it at the end of the term with a lease), so you retain the long-term value once the finance is settled. Terms, rates and tax treatment vary, so it's worth speaking to your accountant alongside your installer.
- Little to no upfront capital required
- Savings can help cover repayments over the term
- You own the system once the finance is paid out
- Total cost is higher once interest is included
Power Purchase Agreements (PPAs)
Under a PPA, a third party funds, owns and maintains the system on your roof and you simply pay for the power it produces, usually at a rate set in the agreement. There's typically no upfront cost and maintenance sits with the provider.
The trade-off is that you don't own the asset and you don't keep the full generation benefit, since the provider takes a margin. PPAs can suit businesses that want solar without capital outlay or asset ownership, but the contract length and rate structure need close reading.
- Minimal or no upfront cost
- Maintenance is the provider's responsibility
- You buy energy rather than own the system
- Contract terms and rates deserve careful review
Where batteries and energy arbitrage fit in
Financing isn't only about panels. Adding a battery with AI-driven energy arbitrage changes the picture, because the system can charge when power is cheap and discharge or export when prices are high. That extra value can shift how a funding option stacks up.
Because we install everything in-house with our own CEC and SAA accredited team, from a 6.6kW rooftop to megawatt-scale projects like the 415kW system at DB Santasalo in Bulli, we can model how a battery affects your return before you commit to any financing path.
Choosing the right structure for your business
The best financing option is the one that matches your cash position, your appetite for ownership and your tariff. A business with capital to deploy and a strong load profile may favour cash, while another might prefer a loan or PPA to protect working capital.
The only way to know is to look at your actual site, bills and usage patterns. A site review gives you real figures rather than assumptions, so you can compare cash, loan and PPA on your own numbers. When you're ready, we're happy to take a look.
There's no single best way to fund commercial solar; the right option comes down to your cash flow, ownership goals and tariff.
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We design, install and deliver commercial solar, battery and AI-driven energy systems Australia-wide — in-house, no subcontractors. A site review models your real load and tariff to show what's actually worth it.
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