State Electricity Subsidy Schemes & Free Units (2026)

In India, electricity is a concurrent subject under the Constitution, meaning both the Central and State governments have legislative powers over it. Consequently, free electricity schemes and power subsidies have become a pivotal aspect of state-level policy. While these schemes provide crucial relief to economically vulnerable demographics and the agricultural sector, they fundamentally alter the economics of power distribution, creating complex financial flows and grid management challenges for Distribution Companies (DISCOMs).

Subsidies are primarily driven by the mandate to provide universal access to affordable electricity. However, the true cost of power supply—incorporating generation costs (Average Cost of Supply, or ACoS), transmission charges, distribution losses, and aggregate technical and commercial (AT&C) losses—often exceeds the tariff charged to residential and agricultural consumers. The gap between the Average Cost of Supply (ACoS) and the Average Revenue Realized (ARR) creates a financial deficit. To bridge this gap, governments either directly transfer subsidy funds to DISCOMs under Section 65 of the Electricity Act 2003, or mandate cross-subsidization where industrial and commercial consumers pay higher tariffs to offset the losses from subsidized categories.

Understanding the architecture of a free electricity scheme requires a deep dive into power economics, tariff structuring, and the regulatory frameworks governing State Electricity Regulatory Commissions (SERCs). When a state announces "200 units free," the state exchequer must legally commit to reimbursing the DISCOM for the energy consumed by the beneficiaries at the determined tariff rate. Delay in these payments leads to working capital crunches for DISCOMs, affecting their ability to pay power generators (GENCOs) and maintain grid infrastructure.

A critical pillar supporting free electricity in India is the Cross-Subsidy framework. Under this mechanism, certain consumer categories (typically Industrial and Commercial) are charged tariffs significantly higher than the ACoS, generating surplus revenue that is used to artificially lower tariffs for domestic and agricultural consumers.

The Electricity Act 2003 mandates that tariffs should progressively reflect the cost of supply and that cross-subsidies should be reduced over time. The National Tariff Policy (NTP) 2016 stipulates that tariffs for all consumer categories should be brought within ±20% of the ACoS. Let us examine the mathematics of this mechanism.

Let ACoS be the Average Cost of Supply in ₹/kWh. Let T_c be the tariff for the subsidizing category (e.g., Commercial) and T_s be the tariff for the subsidized category (e.g., Domestic).

• Target Band: 0.8 * ACoS < T_c, T_s < 1.2 * ACoS
• Cross-Subsidy Surcharge (CSS): When large consumers opt for Open Access (procuring power directly from generators instead of the DISCOM), they must pay a Cross-Subsidy Surcharge to compensate the DISCOM for the lost cross-subsidy revenue. The CSS is calculated using the formula: S = T - [C / (1 - L/100) + D + R]

Where:

• S: Surcharge (₹/kWh)
• T: Tariff payable by the relevant category of consumers, including reflecting the Renewable Purchase Obligation (RPO)
• C: Per unit weighted average cost of power purchase by the Licensee, including meeting the RPO
• D: Aggregate of transmission, distribution, and wheeling charges applicable to the relevant voltage level
• L: Aggregate of transmission, distribution, and commercial losses, expressed as a percentage applicable to the relevant voltage level
• R: Per unit cost of carrying regulatory assets

For example, if the ACoS is ₹7.50/unit, an industrial consumer might be charged ₹9.50/unit (+26%), while a domestic consumer is charged ₹4.50/unit (-40%). The ₹2.00/unit surplus from the industrial consumer cross-subsidizes the ₹3.00/unit deficit from the domestic consumer, balanced by the proportion of energy consumed by each category. If the state government promises free electricity (tariff = ₹0), the entire ₹7.50/unit plus any unrecovered fixed costs must be borne by the state budget as a direct subsidy under Section 65.

Several states have implemented aggressive free electricity schemes, each with unique caps, conditionalities, and budgetary impacts. Below is an in-depth technical breakdown of prominent state models.

1. Delhi: The Zero Bill Model (200 Units)

The Delhi government's scheme provides a 100% subsidy for domestic consumers using up to 200 kWh (units) per month. For consumption between 201 and 400 units, a 50% subsidy is applied, capped at ₹800.

• Technical Constraint: The subsidy operates on a cliff-edge condition. If a consumer uses 201 units, they lose the 100% subsidy and fall into the 50% bracket. This incentivizes massive energy conservation around the 200-unit mark.
• Opt-in Mechanism: Recently, the government mandated an 'opt-in' system, requiring consumers to explicitly apply for the subsidy to filter out non-essential beneficiaries.
• Grid Impact: Peak demand management is challenging during summer (May-July) as air conditioning loads spike, often pushing households beyond the 400-unit threshold where the full tariff (approx ₹7.50-₹8.50/unit + fixed charges + PPAC) applies.

2. Karnataka: Gruha Jyothi Scheme (Up to 200 Units)

The Gruha Jyothi scheme guarantees free electricity up to 200 units for residential connections, but it utilizes a dynamic baseline calculation rather than a flat allowance.

• Calculation Algorithm: The entitlement is calculated as the consumer's monthly average consumption over the previous financial year plus a 10% buffer, subject to a hard cap of 200 units. Let C_avg be the 12-month average consumption. The free allocation E_free = min(C_avg * 1.10, 200).
• Deficit Billing: If current consumption C_current exceeds E_free but is less than 200, the consumer pays only for the difference: (C_current - E_free) * Applicable_Tariff. If C_current > 200, the consumer pays the entire bill without any subsidy.
• Metering Mandate: The scheme requires all installations to have functional meters, accelerating the replacement of faulty electromechanical meters with electronic static meters.

3. Punjab: 300 Units Scheme

Punjab offers 300 units of free electricity per month (or 600 units bimonthly, as billing is often done every two months) to domestic consumers.

• Conditionality by Category: General category consumers who exceed 600 units in a two-month cycle must pay the full bill from unit zero. However, Scheduled Caste (SC), Backward Class (BC), and BPL families are exempt from this cliff-edge rule; if they consume, say, 650 units, they only pay for the 50 units above the 600-unit threshold.
• Agricultural Subsidy: Punjab is unique for its massive agricultural power subsidy, providing free power to tubewells. This results in heavy pumping, severely depleting groundwater tables and straining the grid during the paddy sowing season (June-July). The AP (Agricultural Pump) load accounts for nearly 30% of total consumption.

Implementing a free electricity scheme requires stringent technological and administrative guardrails to prevent revenue leakage, theft, and misuse. The core of these guardrails is identifying the correct beneficiaries and ensuring accurate energy accounting.

1. Aadhaar Seeding and De-duplication: To prevent multiple subsidized connections per household, states mandate linking the electricity Consumer Number (or Account ID) with the beneficiary's Aadhaar card. Algorithms run deduplication checks across DISCOM databases to ensure that one Aadhaar number does not claim subsidies across multiple meters.

2. Direct Benefit Transfer (DBT): While most states provide subsidies as an upfront deduction on the bill, the Ministry of Power is pushing for DBT in electricity. Under DBT, the consumer pays the full billed amount (calculated at the un-subsidized tariff) to the DISCOM, and the state government directly transfers the subsidy amount into the consumer's bank account. This improves DISCOM liquidity and forces accountability in state budgeting, as the state must have the cash ready to disburse directly to citizens.

3. Smart Metering and Energy Audits: The rollout of prepaid smart meters under the Revamped Distribution Sector Scheme (RDSS) is transforming subsidy administration. Smart meters provide 15-minute interval data, allowing for precise load profiling. Furthermore, accurate feeder-level and distribution transformer (DT) level metering allows DISCOMs to perform strict energy audits.

The energy audit formula for a Distribution Transformer is: Losses (%) = ((Energy Supplied at DT - Sum of Energy Billed to all consumers on DT) / Energy Supplied at DT) * 100

High losses often indicate direct hooking or meter tampering, issues that are sometimes exacerbated when consumers attempt to keep their recorded consumption artificially below the "free" threshold.

While politicians focus on the variable energy charge (₹/kWh), electrical engineers must focus on Capacity Costs and grid stability. Power generation, transmission, and distribution assets must be sized to meet the Peak Demand (kW or MW), regardless of how much energy is consumed.

Free electricity schemes artificially alter the elasticity of demand. When electricity is free, consumers have zero marginal incentive to invest in energy-efficient appliances (like 5-star BEE-rated ACs or BLDC fans). This leads to an inflation of the peak load. Let's analyze the technical ramifications:

1. Load Factor Degradation: Load Factor = Average Load / Maximum Load in given period. Free schemes often create sharp needle peaks (e.g., when agricultural pumps are switched on en masse, or evening lighting/cooling loads spike). A poor load factor means generation assets are heavily underutilized during off-peak hours but strained during peak hours, increasing the overall cost of power procurement.
2. Transformer Overloading and Thermal Limits: Higher uncontrolled usage pushes Distribution Transformers beyond their rated MVA capacity. The thermal time constant of a transformer dictates how long it can withstand an overload. Continuous operation above rated capacity leads to accelerated aging of the transformer insulation (Rule of thumb: insulation life is halved for every 10°C rise above operating temperature limits), resulting in frequent DT failures.
3. Voltage Profiles and Reactive Power: Heavy, un-billed agricultural pumping loads (mostly induction motors) draw massive reactive power (kVAR), severely degrading the power factor. This causes severe voltage drops at the tail end of long 11kV rural feeders. DISCOMs are forced to install shunt capacitor banks to compensate, adding to capital expenditure that is not recovered from the subsidized consumer.

The legal bedrock governing subsidies is Section 65 of the Electricity Act, 2003. The Act explicitly states that if the State Government requires the grant of any subsidy to any consumer or class of consumers, the government must pay in advance to the distribution licensee the amount to compensate for the grant of subsidy.

The SERC (State Electricity Regulatory Commission) is responsible for determining the tariff based on the ARR (Aggregate Revenue Requirement) submitted by the DISCOM. The SERC defines the "Full Cost Tariff." The state government then notifies its subsidy commitment. The actual bill generated by the DISCOM must explicitly show the un-subsidized amount, the state subsidy component, and the net payable amount. If the state government fails to pay the subsidy to the DISCOM upfront, the SERC has the legal authority (often underutilized) to mandate the DISCOM to charge the full un-subsidized tariff from the consumers.

This regulatory structure is designed to insulate DISCOM finances from political announcements, although in practice, regulatory assets (deferred revenue recovery) often accumulate due to delayed subsidy disbursements.

The long-term fiscal unsustainability of state-funded free electricity has led to a paradigm shift at the central level: substituting state subsidies with distributed renewable generation. The PM Surya Ghar: Muft Bijli Yojana represents this evolution.

Instead of the exchequer perpetually paying for fossil-fuel power consumed by households, the scheme subsidizes the capital expenditure (CAPEX) of installing residential rooftop solar (RTS) systems. Under this model, a household installs a 2 kW or 3 kW solar plant, which generates roughly 240 to 360 units of electricity per month. This generation directly offsets the household's consumption through Net Metering.

Technical Superiority of the Solar Model:

• Fiscal Shift: Moves subsidy from a recurring operational expense (OPEX) to a one-time capital subsidy.
• Grid Decongestion: Generation occurs at the load center (the home), reducing transmission and distribution losses (I²R losses) to virtually zero for the self-consumed portion.
• Peak Shaving: Solar generation coincides with daytime peak loads in many urban centers, flattening the duck curve and reducing the DISCOM's need to procure expensive daytime spot market power.

By empowering consumers to become prosumers, the government aims to achieve the political goal of "free electricity" via a technically sound, environmentally sustainable, and economically viable pathway, fundamentally reducing the reliance on the archaic cross-subsidy and Section 65 models.