Average Pooled Cost

What is APPC

Average Pooled Cost (APPC), also called Average Pooled Power Cost, is the weighted-average cost at which a DISCOM procures electricity from its diverse power purchase portfolio: thermal, hydro, nuclear, gas, renewable, banking and short-term sources. Each source’s cost is weighted by the energy procured to derive the blended APPC.

APPC is used as a benchmark in several Indian electricity regulations:

• Valuation of excess net metering credits at year-end (in some states)
• Floor and forbearance price for RECs
• Comparison benchmark for renewable PPAs
• Reference for cross-subsidy surcharge calculation in open access

Indian state APPCs typically range from ₹4 to ₹5.5/kWh, varying by state and revised annually. APPC has been declining for many states as cheap solar and wind PPAs displace expensive thermal contracts.

Why APPC matters

Net metering credit valuation. Year-end excess credits may be cashed out at APPC in some states, which is one reason homeowners weighing gross metering vs net metering need to understand the trade-off before sizing a residential rooftop system.

REC pricing. CERC sets REC floor and forbearance referencing APPC.

PPA benchmarking. Solar PPAs below APPC indicate cost savings to DISCOM, a comparison developers run through solar financial modeling tools before bidding.

Cross-subsidy. Reference for surcharge calculation on open access.

Solar economics. Lower APPC pressures renewable tariff bidding.

Indian APPC by state (approximate 2024)

Technical deep dive

Components of APPC

APPC trajectory

Indian APPC has shown:

• Steady rise from ₹3.5 in 2014 to ₹4.5-5.5 in 2024 due to fuel cost inflation
• Renewable PPAs at ₹2.50-3 partially offsetting
• Expected gradual decline as more cheap renewable enters mix

Net metering interaction

For year-end credit cash-out at APPC:

• Excess generation valued at ₹4-5/kWh
• Lower than retail tariff of ₹7-9/kWh
• Discourages oversizing solar beyond consumption

REC pricing reference

CERC REC framework:

• Floor: based on differential between APPC and renewable LCOE
• Forbearance (cap): set by CERC

Real-world applications

Net metering credit valuation in select states, detailed state-by-state in our net metering guide for India.

REC market pricing.

Renewable PPA economic benchmarking.

Cross-subsidy surcharge calculation.

DISCOM strategic procurement planning.

Best practices

Reference current state SERC tariff order for actual APPC.

Account for APPC trajectory in financial modelling.

Understand how excess net metering is treated in state.

For RESCO/PPA: compare against APPC to demonstrate DISCOM savings.

Indian market context

APPC published annually in state SERC tariff orders.

Renewable PPA discovery prices consistently below APPC.

Solar at sub-₹3/kWh creates significant cost gap vs ₹5 APPC.

CERC REC Regulations 2022 reference APPC for floor/forbearance.

Standards and certifications

Key takeaways

APPC (Average Pooled Cost) is the weighted-average procurement cost for a DISCOM’s full power portfolio. Indian state APPCs: ₹4-5.5/kWh. Used for net metering credit valuation, REC pricing, PPA benchmarking and cross-subsidy calculation. Solar PPAs at ₹2.50-3 pull APPC down. Reference current state tariff order for actual value.

Further reading

For how Average Pooled Cost plays out in real projects, these guides go deeper:

• Solar for Rice Mills in India 2026: Load Profile, Cost, and Payback
• Solar for Ice Factories and Cold Chain in India 2026: Cost and Payback

Sources

• State SERC tariff orders (Maharashtra MERC, Karnataka KERC, others).
• CERC REC Regulations 2022.
• CERC Tariff Regulations 2024.
• Forum of Regulators publications on APPC methodology.
• Electricity Act 2003.
• Power Finance Corporation Tariff Database.
• IEA India Energy Outlook 2024.
• IRENA renewable PPA studies.
• Indian DISCOM financial reports.