Solar tariff

What is a solar tariff?

A solar tariff is the rate or price at which electricity generated from solar power is bought, sold, or compensated. It determines how much consumers pay for solar electricity or how much producers earn when supplying power to the grid.

In simple terms, the solar tariff meaning refers to the cost of solar electricity per unit (kWh).

Importance of solar tariff

Solar tariffs are important because they define the cost-effectiveness of solar power for consumers and businesses while ensuring fair price discovery. They help developers recover investments, guide renewable energy adoption through competitive pricing, and support government policies, auctions, and long-term energy planning.

In India, solar tariffs have fallen significantly in recent years, with some large-scale projects discovering tariffs as low as around ₹2.7–₹3 per unit, making solar one of the most affordable sources of electricity today.

Uses of solar tariff

Solar tariffs are used to:

• Calculate electricity costs for solar power consumers
• Determine compensation under net metering or feed-in mechanisms
• Set pricing in solar power purchase agreements (PPAs)
• Evaluate financial savings from solar installations
• Compare solar costs with conventional grid electricity
• Support solar auctions and regulatory frameworks

Examples of solar tariff

Some practical examples include:

• A rooftop solar user receiving bill credits based on net metering tariffs
• A utility-scale solar project selling power at auction-discovered tariffs
• Businesses comparing solar tariffs with grid tariffs to assess savings
• DISCOMs procuring solar power through long-term PPAs
• Open access consumers paying charges based on applicable tariff structures