In RESCO and OPEX Solar Deals, the Battery Becomes the Credit Case

In a standard solar loan, the borrower's balance sheet repays the EMI. If savings disappoint, it is uncomfortable, but the borrower still pays.

In RESCO and OPEX structures, the project's own cashflow carries the loan. The customer pays for power or a monthly fee, and that payment services the debt. Add a battery to one of these deals and it stops being a side item: the battery's performance becomes the credit case.

Who repays the loan?

Standard solar loan: the borrower repays. The borrower's balance sheet pays the EMI.

• Weak savings hurt, but the EMI is paid.
• The credit case rests on the borrower's financials.
• The battery is a side item in the file.

RESCO / OPEX: the project repays. The customer pays, that payment becomes project cashflow, and project cashflow pays the EMI.

• Weak savings mean less cash for debt.
• The credit case rests on the project's own numbers.
• The battery is part of the credit case.

If the battery underperforms

In a RESCO or OPEX deal, the chain is direct: the battery earns less than projected, the project's cashflow falls short, and there is no balance sheet behind it to make up the gap.

A different file for a different structure

That is why these deals need a different credit file: one built on the project's numbers, not the borrower's. For lenders financing RESCO or OPEX solar today, how the battery is treated in the file, as a side item or as the core of the repayment case, is the question that matters most. Tools such as Ingro Sims are built to produce the sizing, siting and commercials that such a project-level file depends on.