Chennai solar guides

Open Access & Captive

Open access, captive and group captive routes, wheeling charges and cross-subsidy surcharge.

Showing 1–6 of 6 articles in Open Access & Captive

Indian factory floor with machinery opening onto a large corrugated roof covered edge to edge with solar panels in Tamil Nadu

Open Access & CaptiveCan Factories Run on Solar Power in India? The Honest AnswerSeptember 8, 202610 min read

Learn whether factories can run on solar power in India, discover what share your roof can realistically cover, and read the four routes beyond it.

Aerial view of a shared ground-mounted solar farm and substation serving several separate factories in South India, illustrating a group captive solar plant

Open Access & CaptiveWho Can Use Power From a Group Captive Solar Plant? Rules ExplainedSeptember 2, 202610 min read

Only shareholders can use the power. A buyer with no equity is a third party whatever the contract says, and the 26 and 51 percent tests must both hold.

A South Indian factory beside its own fenced ground-mounted solar plant with inverter room and switchyard, illustrating a captive solar power plant

Open Access & CaptiveWhat Is a Captive Solar Power Plant? The 26 and 51 Percent RulesSeptember 1, 20269 min read

Learn what a captive solar power plant is, how the 26 and 51 percent tests work, and discover why captive status saves about ₹2.09 per unit in Tamil Nadu.

Pole mounted distribution transformer and medium voltage lines beside a Tamil Nadu factory with rooftop solar, illustrating TANGEDCO wheeling charges

Open Access & CaptiveSolar Power Wheeling Charges in TANGEDCO: 2026 Rates ExplainedAugust 31, 202610 min read

Learn what solar power wheeling charges in TANGEDCO cost, how they differ from TANTRANSCO transmission charges, and why a capacity charge hits solar hardest.

High voltage transmission corridor crossing Indian farmland with a solar farm alongside, illustrating cross subsidy surcharge varying by state

Open Access & CaptiveCross Subsidy Surcharge (CSS) for Solar: Meaning, Formula and State-Wise RatesAugust 29, 202612 min read

The CSS charge is the cross subsidy surcharge, a per unit levy on open access consumers. Rates compared across Tamil Nadu, Karnataka and Gujarat.

Industrial factory with rooftop solar beside a high voltage substation and a distant solar farm in Tamil Nadu, illustrating open access solar power

Open Access & CaptiveWhat Is Open Access Solar? Charges, Rules and Real SavingsAugust 25, 202610 min read

Learn what open access solar is, who qualifies in Tamil Nadu, and how the three structures change your cost per unit. See every TNERC charge with current figures.