Green open access rules

Introduction

Green open access is a regulatory mechanism that enables eligible electricity consumers to obtain electricity generated from renewable sources through the electricity grid, subject to prescribed conditions, charges, scheduling requirements, and technical limitations. It is an important instrument for promoting renewable-energy consumption because it allows consumers to procure green electricity without necessarily relying exclusively on the local distribution licensee.

India's Green Energy Open Access Rules, 2022, notified by the Ministry of Power under the Electricity Act, 2003, created a dedicated framework for renewable-energy-based open access. The Rules were subsequently amended to expand and refine the framework.

Green open access therefore connects three important areas of energy governance: consumer choice, electricity-market regulation, and renewable-energy development.

Meaning of open access

Open access refers to the non-discriminatory use of transmission and distribution networks by eligible electricity consumers, generators, and other authorised participants.

The underlying principle is that electricity networks are infrastructure that can be used by multiple market participants subject to technical and regulatory conditions. A consumer does not necessarily have to purchase all electricity from the distribution licensee serving its geographical area.

The Electricity Act, 2003 established open access as an important element of electricity-sector reform. Section 42 provides for open access in distribution, while other provisions address transmission and regulatory arrangements.

Green open access adds an environmental dimension by facilitating access specifically to electricity generated from renewable sources.

Green Energy Open Access Rules, 2022

The Green Energy Open Access Rules, 2022 were introduced to facilitate faster adoption of renewable energy by consumers.

One of the important features of the original framework was the reduction of the eligibility threshold for consumers seeking green open access. The framework was designed to make renewable electricity accessible to a broader category of consumers rather than limiting participation to only very large industrial users.

The Rules also established mechanisms concerning application procedures, banking of renewable energy, charges, and regulatory oversight.

Eligibility

The Rules originally provided that consumers with a contracted demand or sanctioned load of 100 kW or more could access green energy through open access, subject to the applicable regulatory framework. The framework was subsequently amended, including provisions relating to multiple connections and eligibility.

The policy objective is to make renewable electricity available to commercial and industrial consumers that want to reduce their carbon footprint or meet renewable-energy procurement requirements.

Green energy as the basis of open access

Green open access differs from ordinary open access because the electricity supplied under the arrangement must come from eligible renewable sources.

Renewable sources may include solar, wind, small hydro, biomass, and other sources recognised under the applicable legal and regulatory framework.

The distinction is important because ordinary open access is primarily a market-access mechanism, while green open access combines market access with a renewable-energy objective.

Regulatory role of the Central Electricity Regulatory Commission

The Central Electricity Regulatory Commission (CERC) plays an important role in regulating inter-State transmission and electricity markets, while State Electricity Regulatory Commissions regulate several aspects of intra-State electricity distribution and open access.

The Supreme Court's decision in PTC India Ltd. v. Central Electricity Regulatory Commission (2010) is important in understanding the regulatory architecture of the electricity sector. The Court examined the relationship between the Electricity Act and regulations framed by CERC.

The decision confirms that electricity regulators exercise delegated statutory powers and must operate within the authority granted by Parliament.

Green open access and renewable-energy obligations

Green open access can assist consumers in fulfilling renewable-energy procurement requirements. A consumer may procure renewable electricity through open access instead of purchasing renewable power solely through the local distribution licensee.

This creates a relationship between:

Green open access → renewable electricity procurement → renewable-energy consumption → decarbonisation

However, open access and renewable-energy obligations are legally distinct concepts. Whether a particular procurement arrangement satisfies an RPO depends upon the applicable legislation and regulations.

Banking of renewable energy

Banking is an important feature of renewable-energy open access.

Renewable generation is variable. A solar plant may generate substantial electricity during daylight hours, while a consumer may require electricity at different times. Banking arrangements can allow renewable electricity generated during one period to be adjusted against consumption during another period, subject to regulatory conditions.

The availability and treatment of banking are therefore important for the commercial viability of green open access.

However, banking cannot be treated as an unrestricted right. It is subject to the applicable rules, charges, technical limitations, and regulatory orders.

Charges associated with green open access

A consumer using the electricity network under open access may be required to pay various charges. Depending upon the transaction, these may include:

• transmission charges;
• wheeling charges;
• cross-subsidy surcharge;
• additional surcharge, where legally applicable;
• standby charges;
• banking-related charges; and
• other approved charges.

The structure of these charges is important because excessively high charges can make renewable open access economically unattractive.

At the same time, the regulatory framework must protect the financial viability of distribution licensees.

Cross-subsidy surcharge

The cross-subsidy surcharge (CSS) is one of the most important issues in open access.

Distribution companies may supply electricity to different categories of consumers at tariffs that do not always reflect the full cost of supply to each individual category. Some consumers therefore contribute more toward the overall revenue requirements of the distribution licensee.

When such consumers leave or reduce procurement from the distribution licensee and procure electricity through open access, the distribution licensee may experience revenue loss. CSS is designed partly to address this concern.

In Sesa Sterlite Ltd. v. Orissa Electricity Regulatory Commission (2014), the Supreme Court examined important questions concerning open access and cross-subsidy surcharge. The judgment recognised the statutory structure governing open access while considering the economic implications for distribution licensees.

Additional surcharge

An additional surcharge may arise where open-access consumers impose certain stranded-cost or fixed-cost consequences upon distribution licensees.

However, the imposition of additional surcharge must remain within the statutory and regulatory framework. It cannot become an arbitrary barrier to open access.

The Supreme Court's electricity jurisprudence emphasises the importance of balancing consumer choice with the financial sustainability of the electricity-distribution system.

Green open access and consumer choice

One of the central policy objectives of green open access is to increase consumer choice.

An industrial consumer may decide to procure renewable electricity from a solar or wind generator rather than purchasing all electricity from the local distribution company.

This can encourage:

• private renewable investment;
• corporate decarbonisation;
• long-term renewable-energy contracts;
• distributed renewable generation;
• competitive electricity procurement; and
• development of renewable-energy markets.

The mechanism therefore supports both market reform and environmental policy.

Captive renewable generation

Green open access also interacts with captive power projects.

A consumer may establish or participate in a renewable-energy generating facility and use the electricity for its own consumption, subject to the applicable statutory requirements governing captive generation.

This can be attractive for large industrial consumers seeking greater control over their renewable-energy supply.

However, captive status, ownership requirements, consumption requirements, and network use must comply with the Electricity Act and relevant regulations.

Judicial protection of open access

In Gujarat Urja Vikas Nigam Ltd. v. Essar Power Ltd. (2008), the Supreme Court considered the statutory role and jurisdiction of electricity regulatory commissions. The case illustrates that electricity-sector disputes involving open access, contracts, and regulatory arrangements must be considered within the specialised statutory framework.

Similarly, Energy Watchdog v. Central Electricity Regulatory Commission (2017) demonstrated the importance of the statutory and regulatory framework governing electricity-sector contractual and market relationships.

These cases support the broader principle that electricity regulation combines contractual arrangements with specialised statutory supervision.

Renewable-energy environmental considerations

Green open access is designed to encourage renewable energy, but renewable-energy projects themselves can have environmental and land-use consequences.

In Vellore Citizens' Welfare Forum v. Union of India (1996), the Supreme Court recognised sustainable development, the precautionary principle, and the polluter-pays principle as important elements of Indian environmental law.

Accordingly, green open access should not be understood as eliminating environmental regulation. Renewable projects supplying green open access electricity remain subject to applicable environmental, land, forest, wildlife, and local regulatory requirements.

Grid security and scheduling

Open access transactions must remain compatible with grid security. Renewable generation is variable, and inaccurate forecasts can produce deviations between scheduled and actual generation.

System operators therefore need mechanisms for:

• scheduling;
• forecasting;
• deviation settlement;
• balancing;
• transmission management; and
• grid-security protection.

Green open access cannot operate independently from these technical requirements.

Regulatory challenges

Several challenges remain important.

First, financial viability: Charges imposed on open-access consumers can affect the attractiveness of renewable procurement.

Second, distribution-company finances: Large consumers moving to open access can affect the revenue base of distribution licensees.

Third, transmission capacity: Renewable generation is often located far from industrial demand centres.

Fourth, regulatory coordination: CERC, State Commissions, transmission utilities, distribution licensees, system operators, and renewable generators must work within a coordinated framework.

Fifth, renewable variability: Solar and wind generation require appropriate forecasting and balancing mechanisms.

Sixth, regulatory certainty: Long-term renewable investments require predictable open-access rules and charges.

Constitutional and administrative principles

Green open access regulation must also comply with general constitutional principles. Regulatory decisions should be based on statutory authority, reasoned decision-making, fairness, and non-arbitrariness.

The principles of administrative review discussed in Tata Cellular v. Union of India (1994) are relevant because regulatory decisions concerning tariffs, charges, and market access may be challenged when they exceed legal authority or become arbitrary.

Similarly, Maneka Gandhi v. Union of India (1978) strengthened the broader constitutional requirement of fairness and reasonableness in governmental action.

Conclusion

Green open access rules represent an important component of India's renewable-energy transition. By allowing eligible consumers to procure electricity from renewable sources through the electricity network, the framework promotes consumer choice, renewable-energy investment, corporate decarbonisation, and competitive electricity procurement.

The Green Energy Open Access Rules, 2022, together with subsequent amendments and regulations, operate within the broader statutory structure of the Electricity Act, 2003. Their implementation requires coordination among electricity regulators, system operators, transmission utilities, distribution companies, generators, and consumers.

The jurisprudence in PTC India Ltd. v. CERC, Sesa Sterlite Ltd. v. OERC, Gujarat Urja Vikas Nigam Ltd. v. Essar Power Ltd., and Energy Watchdog v. CERC demonstrates the importance of statutory authority, regulatory jurisdiction, consumer access, and financial balance within the electricity sector. Vellore Citizens' Welfare Forum further establishes that renewable-energy development must remain consistent with sustainable-development principles.

Ultimately, green open access seeks to establish a balance between consumer freedom, renewable-energy expansion, competitive electricity markets, grid security, and distribution-sector financial stability. A stable and transparent regulatory framework is essential for ensuring that this mechanism contributes effectively to India's long-term clean-energy transition.