How Renewable Energy Procurement Works for Large Industrial Consumers

If you're a CFO, VP Operations, or Energy Manager at a large industrial company, the question isn't whether to procure renewable energy — it's how to do it correctly, at the right cost, with the right contract structure.

Here's a plain-language guide to how renewable energy procurement actually works for large industrial consumers in India.

The Four Main Procurement Routes

1. Group Captive

You co-invest in a renewable generating company (minimum 26% equity) and purchase power as a captive consumer. Savings are typically 25–40% vs grid. Involves long-term equity commitment and PPA.

2. Third-Party PPA (Open Access)

You sign a Power Purchase Agreement with a renewable developer who builds and owns the plant. Power is delivered to you via the state grid under open access provisions. No equity commitment, but wheeling and other charges apply.

3. Rooftop / Ground-Mount CAPEX

You own the solar plant on your premises. Best for daytime consumption offset. Requires capital outlay but delivers highest long-term ROI.

4. RESCO / OPEX

A developer owns and operates solar on your premises. You pay a fixed PPA rate — typically below grid tariff. No capital required; savings from day one.

What Goes Into a Good Renewable PPA?

• Term: 15–25 years for group captive; 10–20 years for third-party PPA
• Tariff: Fixed or indexed; negotiate annual escalation cap carefully
• Curtailment provisions: What happens if the plant underperforms?
• Change-in-law: How regulatory changes (surcharges, duties) are shared
• Exit clauses: Penalty structure for early termination
• Performance guarantees: CUF (Capacity Utilisation Factor) guarantees from developer

The Procurement Process: From Decision to Power

• Step 1: Load and tariff analysis — understand your consumption and current cost
• Step 2: Model selection — captive, PPA, or combination
• Step 3: Developer/partner identification — RFP or direct negotiation
• Step 4: Due diligence — technical, financial, and regulatory review
• Step 5: PPA and equity documentation
• Step 6: Regulatory approvals — open access, connectivity, banking
• Step 7: Project commissioning — typically 12–30 months

What Should CFOs and Energy Managers Evaluate?

• Effective per-unit cost (all-inclusive: renewable + wheeling + surcharges + losses)
• Break-even vs grid tariff trajectory
• Working capital and equity commitment requirements
• Balance sheet treatment (CAPEX vs OPEX)
• Regulatory risk in your state
• Developer track record and financial strength