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Green Energy Open Access

Sourcing solar power directly from off-site plants. Best for large commercial and industrial consumers with limited rooftop space but high energy demand.

What is Solar Open Access?

Solar Open Access is a regulatory mechanism that allows large electricity consumers (Commercial and Industrial) to buy solar power directly from third-party generators or set up their own off-site solar plants and "wheel" that power to their facility using the state's transmission lines.

Green Energy Rules 2022

The latest central rules have lowered the entry barrier, allowing any consumer with a load of 100 kW or more to participate in Green Energy Open Access.

Who is Eligible?

  • Minimum Load: Sanctioned load of 100 kW or above (can be aggregated within the same division).
  • Consumer Type: Primarily Commercial & Industrial (C&I) entities.
  • Grid Connectivity: Must have a valid HT (High Tension) or LT (Low Tension) connection as per state regulations.

Why Choose Open Access?

Huge Savings

OA tariffs are often 30-50% lower than standard DISCOM industrial tariffs.

No Rooftop Needed

The solar plant is located off-site, so you don't need any roof space at your facility.

Scalability

Easily source 100% of your power from solar by choosing larger off-site capacities.

Sustainability

Achieve Net-Zero goals and fulfill Renewable Purchase Obligations (RPO) easily.

Business Models in Open Access

Group Captive Model:

Consumer owns at least 26% equity in the solar project. Benefit: Maximum savings as it is exempt from Cross-Subsidy Surcharge (CSS) and Additional Surcharge (AS).

Third-Party PPA Model:

Zero investment from the consumer. You simply sign a PPA with a developer to buy power at a fixed rate. Simple and hassle-free, though surcharges may apply.

Understanding OA Charges

While solar power is cheap, the state DISCOMs levy certain charges for using their grid:

  • Wheeling Charges: Cost of using the distribution network.
  • Transmission Charges: Cost of using the high-voltage transmission lines.
  • Cross-Subsidy Surcharge (CSS): (Often waived in Group Captive).
  • Additional Surcharge (AS): (Often waived in Group Captive).
  • Banking Charges: Fee for "storing" your solar power in the grid for later use.

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