Sun Wave Knowledge Centre
Practical open access guidance, analysis and updates for commercial and industrial solar buyers.
HERC's 26 August 2026 order in Petition 34/2026 lets Haryana open-access applicants file banking applications alongside LTOA instead of after it. What the DISPA vs DHBVNL/UHBVNL ruling changes for industrial solar buyers.
Open access structures compared: third-party sale pays CSS plus additional surcharge, group captive avoids CSS with 26% equity. Landed tariffs, 2026 rule changes and when each structure wins.
India added a record 3 GW of open-access solar in Q2 2026, taking cumulative capacity to 36 GW with Rajasthan at 25% of quarterly additions. Here is what the Mercom Q2 2026 record means for North-India C&I buyers choosing between rooftop, group-captive and third-party PPA procurement.
Haryana solar open access charges FY 2026-27: wheeling ₹0.73/unit, CSS ₹1.45/unit, additional network cost ₹0.45/unit and the ₹1.37/unit additional surcharge. See real landed cost and why group-captive deals stay exempt.
Complete voltage-wise Karnataka solar open access cost framework using KERC tariff order — wheeling, CSS, additional surcharge, banking, landed cost
Complete voltage-wise Tamil Nadu solar open access cost framework using TNERC tariff order — wheeling, CSS, additional surcharge, banking, landed cost
Voltage-wise Maharashtra solar open access cost using MERC FY2026-27 tariff order: wheeling, cross-subsidy surcharge, additional surcharge and landed cost.
Voltage-wise Gujarat solar open access cost framework for FY2026-27: GERC wheeling, cross-subsidy surcharge, additional surcharge and landed cost.
Voltage-wise UP solar open access cost framework using the UPERC FY2026-27 tariff order — wheeling, cross-subsidy surcharge, and landed cost calculations.
What DERC's 15 April 2026 draft could change for 100 kW LT green open access consumers in Delhi, including aggregation, captive eligibility and next steps.
UPERC's NPCL-specific FY 2025-26 open access wheeling charge, voltage-wise CSS, zero additional surcharge and embedded-consumer proviso explained.
A practical guide to Rajasthan green energy open access eligibility, nodal agencies, 15-day processing, captive capacity, BESS and banking checks.
A voltage-wise framework for estimating Rajasthan solar open access cost using the RERC tariff order dated 30 March 2026, with captive cautions.