Power

At Hindustan Zinc, we understand that reliable and cost-effective power is fundamental to our operations and our vision to be the lowest-cost producer. Our integrated power strategy combines the stability of captive thermal power with the environmental responsibility of renewable energy sources.

Thermal Power Plants

• Capacity & Generation: Our coal-based thermal captive power plants boast a total generation capacity of 536 MW, producing 4,033 million units of power in FY 2025.
• Cost Optimization: In a dynamic commodity market, we strategically diversify our fuel mix, utilizing off-spec coal, biomass, and securing significant domestic coal supplies (1.165 million MT in FY 2025, ~57% of our needs).
• Operational Excellence: We prioritize efficiency through continuous optimization, including ESP modifications, turbine upgrades, and maintaining high plant load factors. Our focus on the total cost of ownership for coal procurement further drives down unit costs.
• Efficiency Gains: By enhancing the efficiency of our steam turbines, we have increased capacity by 13% and achieved a reduction of 0.27 MntCO2e.

Embracing Green Energy

We are deeply committed to minimizing our environmental impact and actively invest in green energy solutions to reduce our greenhouse gas emissions and carbon footprint. Our renewable energy portfolio stands strong at 362.4 MW.

 Wind Power

• As one of India’s largest wind power producers, we have a total installed capacity of 273.5 MW across five states (Gujarat, Karnataka, Rajasthan, Maharashtra, and Tamil Nadu).
• Our wind farms, established in phases between 2007 and 2012, generated 348 million units in FY 2025.
• These projects are registered under the UNFCCC’s Clean Development Mechanism (CDM), demonstrating our commitment to global climate action and possess a certified emission reduction (CER) potential of 497,209 MT of CO2 per annum.

Waste Heat Recovery

• We capture and utilize waste heat from our smelter operations through the power generating capacity of 48.3 MW.
• Recent installations include a 5.4 MW STG at the Dariba Lead Plant (FY 22) and an 8.5 MW STG at CLZS Fumer (FY 25).
• Our waste heat recovery projects are recognized as renewable energy sources by the Rajasthan Renewable Energy Corporation.

Solar Power

• We have implemented various solar power projects, including rooftop installations (1.6 MW) and captive solar plants at Rampura Agucha (22 MW), Debari (12 MW), Dariba (4 MW) and Kayad (1MW)
• Our Head Office in Udaipur predominantly operates on solar energy, showcasing our commitment at every level.
• In FY 2025, our solar power generation 72 million units.
• Impact of Green Energy Initiatives: Through our green energy generation and cost reduction efforts, we achieved a significant reduction of 6.7 Lacs tCO2e in FY 2025.

Powering the Future: Renewable – Round the Clock (RE-RTC) Agreement

• To further accelerate our transition towards sustainable power, HZL has entered into a landmark Power Delivery Agreement (PDA) with Serentica Renewable for a cumulative 530 MW of RE-RTC power, with a firm commitment of 315 MW and a peak capacity of 530 MW.
• HZL commenced drawing power from these PDAs since May 2024 and replaced  307MU of conventional energy in FY 2025.
• These strategic move is projected to reduce our carbon footprint by 3.7 Million TCO2 equivalent per annum and will enable 70% of our operations to be powered by renewable energy.
• This initiative underscores HZL’s leadership in sustainable mining practices and our unwavering commitment to environmental stewardship, setting a new benchmark for the industry’s integration of renewable energy at scale and propelling us towards our net-zero emissions goal.

Operational Excellence

• We partner with world-renowned power plant maintenance and operations companies to ensure the highest levels of efficiency and reliability across our power infrastructure.
• Our proactive approach to cost management includes optimizing coal blends, enhancing plant operations, improving turbine efficiency, minimizing auxiliary consumption, and maintaining high plant load factors.
• By prioritizing indigenous coal and optimizing our operations, we’ve gained greater flexibility to maximize renewable energy consumption during both day and night.