India's recent tax reforms signal a transformative shift in the country's energy landscape by offering significant tax relief for renewable energy and restructuring coal taxation to boost domestic competitiveness. These policy adjustments align with India's ambitious target of achieving 500 gigawatts (GW) of renewable energy capacity by 2030, cementing the nation's position as a global leader in clean energy adoption.
Major Tax Relief for Renewable Energy
Effective September 22, 2025, the Goods and Services Tax (GST) on renewable energy equipment—including solar panels, wind turbines, biogas plants, and battery storage systems—has been slashed from 12% to 5%. This reduction lowers upfront costs substantially. For utility-scale solar projects, capital cost savings of ₹20-25 lakh per megawatt are expected, translating to over ₹100 crore for a 500 MW solar park. Smaller installations also benefit, with typical rooftop solar systems becoming ₹9,000-10,500 cheaper per 3 kW system. The reduced tax burden is anticipated to lower electricity tariffs, easing power procurement costs for distribution companies and making clean energy more affordable for households, farmers, and industries alike.
This GST rationalization also aims to accelerate the pace of renewable energy deployment, boosting investor confidence and enabling faster project commissioning. By facilitating cost reductions equivalent to ₹1–1.5 lakh crore in investment capacity through lowered tariffs, the reforms could help avoid 50-70 million tonnes of CO₂ emissions annually by 2030, supporting India’s climate commitments under the Paris Agreement.
Complex Restructuring in the Coal Sector
While the GST rate on coal has increased from 5% to 18%, the simultaneous removal of the ₹400-per-tonne compensation cess results in an overall tax burden decrease for most coal grades. For example, primary grades like G-11 see price reductions exceeding ₹260 per tonne. This reform also eliminates the prior distorted inverted duty structure—where input services faced 18% GST but coal outputs were taxed at 5%—which had created unutilized tax credits for coal producers.
The Indian power sector, heavily reliant on coal (about 75% of electricity generation), will see lower generation costs, potentially reducing power tariffs by approximately 17-18 paise per kilowatt-hour. The restructured coal tax framework places domestic and imported coal on more equitable footing, removing a long-standing tax anomaly that made high-grade imported coal cheaper than domestic low-grade varieties. Consequently, domestic coal producers, led by Coal India Limited, can expect improved competitiveness, with a uniform tax incidence around 39.81% across coal grades.
Strategic Impact and Energy Transition
India’s dual approach of reducing costs for renewable energy while ensuring coal remains competitively priced reflects a pragmatic energy transition strategy. It balances the goals of ramping up clean energy capacity and maintaining energy security amid a gradual shift away from fossil fuels. The reforms are poised to lower electricity generation costs, enhance investor sentiment, and support a sustainable, green growth trajectory as India moves toward net-zero emissions by 2070.
Renewable energy developers have already responded positively; for instance, ReNew Energy Global announced price cuts on solar modules to pass on GST savings to customers, further accelerating market momentum.
In summary, these tax reforms represent a landmark policy milestone that will drive cleaner energy adoption, reduce dependence on imports, lower power costs, and strengthen India’s leadership in the global fight against climate change.

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