Open Access
IEX Green Day-Ahead Market: A C&I Buyer's Guide
How C&I buyers can purchase green power on IEX's Green Day-Ahead Market: eligibility via open access, recent prices, and how it compares with rooftop solar.
22 Oct 20267 min read
Sun Wave Knowledge Centre
Open Access Articles
Practical open access guidance, analysis and updates for commercial and industrial solar buyers.
Open Access
Madhya Pradesh Open Access Solar Charges FY2026-27
MP open access solar charges FY2026-27: wheeling ₹0.17/₹0.69, CSS ₹1.49, additional surcharge ₹1.18, 8% banking and a landed-cost example. Verified 27 Oct 2026.
22 Oct 202613 min read
Open Access
Punjab Open Access Solar Charges FY2026-27: Rates & Rules
Punjab open access solar charges FY2026-27: CSS ₹0.86, 2% in-kind wheeling, additional surcharge ₹1.13/₹0.78 and a landed-cost example. Verified 27 Oct 2026.
22 Oct 202615 min read
Open Access
West Bengal Open Access Solar for Industry: A Guide
Open access solar in West Bengal faces stacked charges and licensee-first allotment. Why captive rooftop and net billing usually win for WB factories.
22 Oct 20267 min read
Open Access
HERC Green Energy Banking Order Eases Haryana Open Access
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.
10 Sept 20267 min read
Open Access
Third-Party Sale vs Group Captive Solar in India (2026)
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.
5 Sept 20266 min read
Open Access
India Hit a Record 3 GW of Open-Access Solar in Q2 2026: What It Signals for C&I Buyers
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.
25 Aug 20268 min read
Open Access
Haryana Open Access Solar Charges FY2026-27
Haryana open access solar FY2026-27: wheeling ₹0.73, CSS ₹1.45, surcharge ₹1.37/unit. Full charge stack, worked landed cost example, group captive exemptions, banking rules. Verified Oct 2026.
20 Aug 202614 min read
Open Access
Karnataka Open Access Solar Charges FY 2026-27: Wheeling, CSS
Complete voltage-wise Karnataka solar open access cost framework using KERC tariff order — wheeling, CSS, additional surcharge, banking, landed cost
7 Aug 202621 min read
Open Access
Tamil Nadu Open Access Charges FY2026-27 (TNPDCL)
TANGEDCO (now TNPDCL/TNGECL) open access solar charges FY2026-27: wheeling, cross-subsidy surcharge, additional surcharge, banking rules, and landed cost worked example.
6 Aug 202613 min read
Open Access
Maharashtra Open Access Solar Charges FY 2026-27: Wheeling, CSS
Voltage-wise Maharashtra solar open access cost using MERC FY2026-27 tariff order: wheeling, cross-subsidy surcharge, additional surcharge and landed cost.
4 Aug 202619 min read
Open Access
Gujarat Open Access Solar Charges FY 2026-27: Wheeling, CSS
Gujarat open access solar FY2026-27: wheeling ₹0.2352, CSS ₹1.33, additional surcharge ₹0.99 from Oct 2026, banking ₹1.00/unit. Verified 27 Oct 2026.
31 Jul 202618 min read
Open Access
UP Open Access Solar Charges FY 2026-27: Wheeling & CSS
UP open access solar charges FY 2026-27: wheeling ₹0.9318, HV-2 CSS ₹0.38-0.49, transmission ₹0.3075, no additional surcharge set yet. Verified 27 Oct 2026.
24 Jul 202611 min read
Open Access
Delhi Green Open Access for 100 kW LT Consumers: 2026 Draft Explained
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.
11 Jul 20268 min read
Open Access
NPCL Open Access Solar Charges FY 2026-27: Noida
NPCL open access solar charges FY 2026-27: wheeling ₹1.03, HV-2 CSS ₹0.57, additional surcharge zero, transmission ₹0.3075 and an example. Verified 27 Oct 2026.
11 Jul 202611 min read
Open Access
Rajasthan Green Open Access Application and Banking Procedure 2026
A practical guide to Rajasthan green energy open access eligibility, nodal agencies, 15-day processing, captive capacity, BESS and banking checks.
11 Jul 20268 min read
Open Access
Rajasthan Open Access Solar Charges FY 2026-27: Wheeling, CSS and Surcharge
A voltage-wise framework for estimating Rajasthan solar open access cost using the RERC tariff order dated 30 March 2026, with captive cautions.
11 Jul 20268 min read