Loading...
Sector
Renewable Energy
Renewable energy financing is project finance in its purest form — long-tenor debt sized against a power purchase agreement's cash flow, with the developer's own balance sheet playing a secondary role.
Debt sized against the power purchase agreement, not the promoter
A solar or wind project's financing is typically structured around the cash flow expected from its power purchase agreement (PPA) — the contract governing how much electricity the project will sell, to whom, and at what tariff, over what tenure. Lenders size the term loan's tenor and repayment schedule against the PPA's cash-flow profile, applying a debt service coverage ratio test throughout the loan life rather than just at sanction. This is quite different from a typical manufacturing term loan, where the promoter's overall balance sheet strength is often the primary consideration; here, the specific project's contracted revenue is central.
Capex intensity and import dependence
Solar panels, wind turbines, inverters and balance-of-system equipment represent the bulk of project cost, and a significant share of this equipment, or its key components, is often imported, creating currency exposure during the construction phase. Developers typically need financing across two distinct phases: construction-period debt or bridge financing to fund capex before the project is commissioned, and long-term project debt that takes over once the plant is operational and generating PPA-linked revenue. Getting this two-phase structure right, with a clear takeout mechanism between construction and long-term financing, is one of the more technical parts of a renewable energy proposal.
| Facility | What it funds |
|---|---|
| Construction-period debt / bridge finance | Capex during the build phase, before commissioning |
| Long-term project finance | Take-out financing once the project is operational, sized against the PPA |
| Equity or strategic capital | A portion of project cost to keep leverage at a sustainable level |
| Forward contract / import financing | Currency exposure on imported panels, turbines and inverters |
| Debt restructuring | Realigning terms if discom payment delays disrupt the debt-service schedule |
Model discom payment delays explicitly, do not assume the PPA tariff pays on time
Delayed payments from state power distribution companies (discoms) are a well-known industry-wide issue. Building a realistic collection-delay assumption into the project's cash-flow model, rather than assuming payment exactly on the PPA's stated terms, produces a debt service coverage picture that a lender's credit committee is more likely to trust.
What lenders look at
Appraisers scrutinise the creditworthiness and payment track record of the PPA off-taker (often a discom or a corporate buyer under a group captive or open-access arrangement), the technical soundness of yield and generation estimates against the site's actual resource data, the debt service coverage ratio under both base-case and stressed collection-delay scenarios, the developer's track record executing similar projects, and the strength of the project's security package, including receivables, project assets and, where structured, a debt service reserve. A single-project special purpose vehicle with clean, ring-fenced cash flows is generally easier to appraise and finance than a project bundled inside a larger, more complex corporate balance sheet.
A worked example
Consider a developer commissioning a mid-sized solar project under a PPA with a state discom known for delayed payments. Rather than presenting a cash-flow model assuming on-time payment, the developer's project report includes a stressed case with a realistic collection-delay assumption based on the discom's recent payment history, and proposes a debt service reserve account funded from initial equity to cover a defined number of months of debt service during any payment gap. This demonstrates to the lender that the project has been structured with the discom's actual payment behaviour in mind, rather than an idealised assumption.
Operations and maintenance cost planning
Solar and wind assets have relatively low ongoing operating costs compared to their upfront capex, but operations and maintenance — panel cleaning and inverter servicing for solar, blade and gearbox maintenance for wind, plus monitoring systems for both — is not negligible over a twenty-to-twenty-five-year project life, and degradation in generation output over time is a normal, expected part of the asset's performance curve rather than a fault to be corrected. Lenders reviewing the long-term project debt will typically want to see an operations and maintenance budget built into the cash-flow model, along with a realistic degradation assumption for panel or turbine output over the loan tenor, rather than a model that assumes day-one generation performance holds constant for the life of the facility. Developers who have a dedicated operations and maintenance contract in place, ideally with an experienced service provider, generally present a more predictable long-term cash-flow picture than those planning to manage it informally.
Building a proposal that holds up
- Present generation and yield estimates backed by independent resource assessment data for the specific site.
- Model debt service coverage under both the PPA's stated payment terms and a realistic delayed-collection scenario.
- Structure financing in two clear phases — construction and long-term — with an explicit takeout mechanism between them.
- Address currency exposure on imported equipment separately from the project's rupee-denominated PPA revenue.
- Consider a debt service reserve or similar buffer, particularly where the off-taker has a history of payment delays.
- Keep the project structured as a clean, ring-fenced entity where possible, to simplify lender appraisal.
Discom payment behaviour and policy support can change
Payment timelines from state discoms, and any policy support schemes for renewable energy, are subject to change and vary by state. This page describes general structuring principles only; check the current position with your lender and keep track of policy developments relevant to your project.
Financing
Typical financing needs
What lenders check
What lenders focus on in this sector
- Creditworthiness and payment track record of the PPA off-taker
- Technical soundness of generation and yield estimates for the specific site
- Debt service coverage under both base-case and stressed collection-delay scenarios
- Developer's track record executing comparable renewable energy projects
- Strength of the security package, including any debt service reserve
- Currency exposure on imported equipment during the construction phase
- Whether the project is structured as a clean, ring-fenced special purpose entity
Questions
Frequently asked questions
Why does the lender care more about our PPA than our company's overall balance sheet?+
Renewable energy project finance is typically structured around the specific project's contracted revenue under the PPA, since that is what services the debt. Your broader balance sheet still matters, particularly for equity contribution and track record, but the project's own cash flow is central to how the loan is sized.
Our discom is known to pay late. Does that disqualify us from financing?+
Not automatically. Lenders across the sector are familiar with this issue and will want to see a realistic, stressed cash-flow model and, often, a debt service reserve or similar buffer built into the financing structure to manage it.
How is construction-period financing different from long-term project debt?+
Construction-period debt or bridge financing covers capex before the project is commissioned and generating revenue, while long-term project debt takes over afterward, sized against the PPA's ongoing cash flow. The two are typically structured with a clear takeout mechanism between them.
Keep reading
Related articles
Financing for a business in this sector?
Share your requirement and our team will follow up.