₹2.34 Solar Is Not the Full Cost: Is Rajasthan Preparing for Too Much Midday Power?
₹2.34 Solar Is Not the Full Cost: Is Rajasthan Preparing for Too Much Midday Power? Executive Summary Rajasthan has a strong solar resource, but inexpensive generation does not automatically mean inexpensive electricity delivered when and where consumers need it. Transmission, curtailment, balancing, storage and demand timing matter. The ₹2.34/kWh tariff in this article is illustrative, not a verified Rajasthan-wide average. 1. What does ₹2.34/kWh represent? A competitively bid solar generation tariff generally represents a contract-specific price at an agreed delivery point. It does not necessarily include downstream transmission, distribution, balancing, firming or other costs. Comparing it directly with the full cost of firm electricity is misleading. 2. Illustrative delivered-cost scenarios Assume ₹2.34/kWh for solar generation and an additional ₹0.60/kWh for transmission and balancing. The illustration totals ₹2.94/kWh without firming. Add an illustrative ₹1.50/kWh firming allowance and it becomes ₹4.44/kWh. These additions are assumptions, not official tariffs, and must not be presented as Rajasthan system averages. 3. Why midday congestion matters Solar generation peaks during daylight, but demand and network transfer capacity vary. Rajasthan SLDC publishes renewable-energy curtailment records. They demonstrate monitored events, not a single verified statewide curtailment rate. Local congestion can coexist with evening shortages. 4. What curtailment can cost Consider a hypothetical 100 MW plant with 180 million annual units and ₹2.34/kWh revenue. Curtailment of 1%, 3%, 5% and 10% corresponds to gross revenue exposure of approximately ₹42.12 lakh, ₹1.26 crore, ₹2.11 crore and ₹4.21 crore respectively. Actual loss depends on contractual compensation and dispatch rules. 5. Is BESS the answer? Batteries can shift energy to later hours and deliver grid-support services. But they incur capital, financing, degradation, operating and energy-loss costs. With 85% round-trip efficiency, 100 MWh charged yields about 85 MWh delivered. Commercial value depends on the charging opportunity cost and discharge revenue. 6. Transmission, storage and demand flexibility Transmission moves electricity geographically, storage moves it across time, and demand response changes when electricity is consumed. The least-cost approach may combine all three. National transmission planning anticipates major network expansion through 2032. 7. What investors and lenders should test Evaluate hourly generation, network evacuation risk, contractual curtailment rights, commissioning timing and financial sensitivity to lost generation. Grid connectivity approval alone is not a substitute for realistic evacuation due diligence. 8. What C&I consumers should compare Compare the total landed cost of solar supply, not just the headline generation price. Model time-of-day demand, open-access charges where applicable, losses, settlement, banking rules, backup requirements and contract risk. 9. Wattscore perspective Integrated energy planning should combine solar engineering, open-access economics, grid readiness, energy management and storage. The objective is useful clean electricity delivered reliably at the right time. Frequently Asked Questions Is ₹2.34/kWh a Rajasthan-wide solar price? No, it is illustrative here. Does curtailment mean too much solar everywhere? No; it can reflect local congestion or timing mismatch. Can batteries eliminate curtailment? They can reduce some constraints but not all. Does storage add cost? Yes, though it may add valuable flexibility. What should C&I customers compare? Total landed cost and demand matching. Conclusion Cheap solar generation is an achievement. Affordable, reliable and usable clean electricity is the larger objective. Official References Central Electricity Authority — National Electricity Plan (Transmission) Rajasthan SLDC — Renewable Energy Curtailment Records RERC — Renewable Energy and Storage Regulations Related Wattscore Reading PM Surya Ghar 2026–27: Subsidy, Prices and Eligibility
₹2.34 Solar Is Not the Full Cost: Is Rajasthan Preparing for Too Much Midday Power? Executive Summary Rajasthan has a strong solar resource, but inexpensive generation does not automatically mean inexpensive electricity delivered when and where consumers need it. Transmission, curtailment, balancing, storage and demand timing matter. The ₹2.34/kWh tariff in this article is illustrative, not a verified Rajasthan-wide average. 1. What does ₹2.34/kWh represent? A competitively bid solar generation tariff generally represents a contract-specific price at an agreed delivery point. It does not necessarily include downstream transmission, distribution, balancing, firming or other costs. Comparing it directly with the full cost of firm electricity is misleading. 2. Illustrative delivered-cost scenarios Assume ₹2.34/kWh for solar generation and an additional ₹0.60/kWh for transmission and balancing. The illustration totals ₹2.94/kWh without firming. Add an illustrative ₹1.50/kWh firming allowance and it becomes ₹4.44/kWh. These additions are assumptions, not official tariffs, and must not be presented as Rajasthan system averages. 3. Why midday congestion matters Solar generation peaks during daylight, but demand and network transfer capacity vary. Rajasthan SLDC publishes renewable-energy curtailment records. They demonstrate monitored events, not a single verified statewide curtailment rate. Local congestion can coexist with evening shortages. 4. What curtailment can cost Consider a hypothetical 100 MW plant with 180 million annual units and ₹2.34/kWh revenue. Curtailment of 1%, 3%, 5% and 10% corresponds to gross revenue exposure of approximately ₹42.12 lakh, ₹1.26 crore, ₹2.11 crore and ₹4.21 crore respectively. Actual loss depends on contractual compensation and dispatch rules. 5. Is BESS the answer? Batteries can shift energy to later hours and deliver grid-support services. But they incur capital, financing, degradation, operating and energy-loss costs. With 85% round-trip efficiency, 100 MWh charged yields about 85 MWh delivered. Commercial value depends on the charging opportunity cost and discharge revenue. 6. Transmission, storage and demand flexibility Transmission moves electricity geographically, storage moves it across time, and demand response changes when electricity is consumed. The least-cost approach may combine all three. National transmission planning anticipates major network expansion through 2032. 7. What investors and lenders should test Evaluate hourly generation, network evacuation risk, contractual curtailment rights, commissioning timing and financial sensitivity to lost generation. Grid connectivity approval alone is not a substitute for realistic evacuation due diligence. 8. What C&I consumers should compare Compare the total landed cost of solar supply, not just the headline generation price. Model time-of-day demand, open-access charges where applicable, losses, settlement, banking rules, backup requirements and contract risk. 9. Wattscore perspective Integrated energy planning should combine solar engineering, open-access economics, grid readiness, energy management and storage. The objective is useful clean electricity delivered reliably at the right time. Frequently Asked Questions Is ₹2.34/kWh a Rajasthan-wide solar price? No, it is illustrative here. Does curtailment mean too much solar everywhere? No; it can reflect local congestion or timing mismatch. Can batteries eliminate curtailment? They can reduce some constraints but not all. Does storage add cost? Yes, though it may add valuable flexibility. What should C&I customers compare? Total landed cost and demand matching. Conclusion Cheap solar generation is an achievement. Affordable, reliable and usable clean electricity is the larger objective. Official References Central Electricity Authority — National Electricity Plan (Transmission) Rajasthan SLDC — Renewable Energy Curtailment Records RERC — Renewable Energy and Storage Regulations Related Wattscore Reading PM Surya Ghar 2026–27: Subsidy, Prices and Eligibility