Executive Summary
A Tamil Nadu-based pharmaceutical manufacturer was on the verge of signing a Wind-Solar Hybrid PPA, enticed by a projected ₹3.54-unit saving and a payback period of less than 12 months. While the paper returns looked incredible, the Managing Director paused before taking the note to the Board. He couldn’t verify exactly how the savings were calculated or what the real “landed cost” would be under the strict Tamil Nadu Open Access regulations.
We intervened with a forensic Techno-Commercial Audit. By mapping the hidden regulatory components and risk elements that the initial proposal ignored, we transformed an “Open Access illusion” into a risk-mitigated strategy. The result? The MD walked into the boardroom with a single, undeniable framework that secured unanimous Board approval for a project delivering a ₹7.5 Crore annual EBITDA impact and ₹160.7 Crore in cumulative wealth.
The ₹27.7 Crore Mandate: A Crisis of Cost & Compliance
For a high-precision industry like pharmaceuticals, energy costs are a major margin driver. This specific MD was managing a facility consuming 3.23 Crore units per annum, resulting in a massive ₹27.7 Crore electricity bill at an ₹8.58/unit tariff.
The pressure was mounting from two fronts:
- The Competitive Gap: His industry peers had already transitioned to Open Access Renewable Energy, significantly lowering their operational costs.
- The Export Threat: With high-value products exporting to Europe and the US, international customers were strictly demanding green energy adoption and ESG compliance.
The mandate was clear: Slash the ₹27.7 Crore opex and switch to maximum RE without compromising the company’s financial stability.
The “No-Brainer” Proposal: The Open Access Illusion
After six months of market scouting, the MD received a Wind-Solar hybrid PPA proposal that seemed to solve every problem. The financial optics were almost too good to be true:
- Projected Savings: ₹3.54/unit
- Year 1 Savings: ₹7.5 Crore
- Equity Investment: ₹6.5 Crore (₹65.9 Mn)
- Payback Period: Less than 12 months (10.6 months)
For an executive tasked with immediate cost reduction, this was a standard “no-brainer.” But before seeking final capital approval, the MD realized he lacked the granular data to defend these numbers to a skeptical Board. He reached out to us to perform a forensic due diligence on the landed cost and the long-term risk elements.
The Reality Check: The Hidden Cost of Regulation
We ran the proposal through our Techno-Commercial Audit, specifically stress-testing the “savings” against the complex Tamil Nadu Open Access framework.
When you look past the basic PPA tariff, you discover a maze of regulatory charges that dictate your actual landed cost. The MD’s mandate to us was specific: “My board needs just one single slide to be convinced”. They needed to see exactly how a ₹3.96 PPA tariff becomes a ₹5.04 landed cost once the regulatory reality hits.
The Forensic Audit: Decoding the ₹3.54/Unit Saving
By mapping the hidden components and risk elements, we provided the MD with the forensic truth behind the landed cost:
- Landed RE Cost Breakup: We accounted for STU Transmission Charges (₹0.14), Wheeling Charges (₹0.52), and Self-Generation Tax (₹0.10).
- The T&W Reality: We factored in Transmission and Wheeling (T&W) losses of 5.86%, which added ₹0.30 to the effective cost.
- The Final Tally: The “True All-In Landed RE Cost” was identified as ₹5.04/unit, confirming that even with these costs, the Grid is 41% more expensive than RE.
The Verdict: Ownership of Returns This transparency completely changed the Board’s perspective. By moving away from an “illusion” of cheap savings and toward a forensic “Landed Cost” model, the risk was effectively mitigated.
The math was undeniable:
- RE Replacement: 25.65 MU per year.
- Total Cumulative Savings: ₹160.7 Crore over 15 years.
- Board Approval: Unanimous.
The MD didn’t just present a proposal; he presented a boardroom-grade strategy that secured their US/European export lines and delivered a massive ₹7.5 Crore direct EBITDA impact.
Don’t buy a Tariff. Buy Returns.
Next Steps for the Boardroom
If you are an industrial consumer in Tamil Nadu looking to present a Wind-Solar PPA for approval, standard “savings” projections are not enough. You need a forensic analysis of your landed cost against the current TN Open Access settlement rules.
If you want us to run a Techno-Commercial Wealth Audit for your plant and build the “one slide” your Board needs to see, connect with us to reserve your strategy session today.
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Send us your PPA to stress-testAbout Infinia Solar
Infinia Solar is India’s leading buy-side renewable-energy advisory. We help large Commercial & Industrial buyers procure the right renewable energy — from the right developers, on the right PPA terms — representing the buyer, never the developer.
We’ve advised 65+ corporates across 19 states, enabling 1.6 GW of solar, wind and hybrid capacity and ₹6,500 Cr of projects across 150+ PPAs with 40+ developers — and zero portfolio defaults.