World Environment Day: Meet India's Top Five CleanTech Startups

As India strides toward a sustainable future, CleanTech startups are at the forefront, innovating and transforming the energy landscape. Here are seven pioneering companies making waves in the sector.

75F: Smart Building Solutions

Established in 2012 by Deepinder Singh and Pankaj Chawla, 75F is a Bengaluru-based company using smart building solutions to maximize energy efficiency. Their technology, combining wireless sensors, equipment controllers, and cloud software, proactively monitors and adjusts building temperatures, preventing damage and saving energy. Initially targeting commercial real estate, 75F expanded to HVAC solutions in 2015. Their success is backed by a strong investment portfolio that includes Siemens AG and Breakthrough Energy Ventures, with a total of $25 million raised to date.

Chakr Innovation: Tackling Emissions

Born in Delhi NCR in 2016 by Kushagra Srivastava, Arpit Dhupar, and Bharti Singhla, Chakr Innovation tackles air pollution with their Chakr Shield. This device captures over 80% of harmful particulate matter from diesel engines, even transforming some emissions into ink. Currently deployed at Delhi's Select CityWalk, the Chakr Shield promises pollution reduction equivalent to a 228-acre forest, and they're exploring Metal-Air battery tech for even greater environmental impact.

Greenko Group: Scaling Renewable Energy

A leader in clean technology, Greenko was founded in Hyderabad in 2004 by Anil Chalamalasetty and Mahesh Kolli. With a massive 7.5 GW of renewable energy capacity across 15 states, Greenko provides affordable utility-scale power. They're at the forefront of energy storage solutions, developing projects in Karnataka, Andhra Pradesh, and Madhya Pradesh. Backed by major investors like GIC and the Abu Dhabi Investment Authority (totaling $6.7 billion), Greenko is pioneering 24/7 clean energy solutions, as evidenced by their recent 975 MW renewable energy project with ArcelorMittal.

h2e Power Systems: Green Hydrogen Pioneers

Founded in Pune in 2011 by Siddharth R. Mayur, Amar Chakradeo, and Bhavana S. Mayur, h2e Power Systems champions clean energy solutions. Their focus lies on fuel cells and electrolysers, enabling technologies for green hydrogen production. Notably, they established India's first green hydrogen plant and currently serve over 182 clients worldwide. Guided by their CRS (conserve, replace, sustainable, scalable) program, h2e is pushing boundaries in the renewable energy sector.

Log9 Materials: Advanced Battery Technology

Log9 Materials, a Bengaluru-based company founded by Dr. Akshay Singhal, Mr. Pankaj Sharma and Mr. Kartik Hajela, is making waves in the Indian EV industry. They are the first company in the country to manufacture commercial lithium-ion cells, specifically Lithium Titanate Oxide batteries designed for India's hot climate.

These batteries offer advantages like rapid charging, long lifespans, and high safety standards. Log9's commitment goes beyond innovation – they prioritize responsible battery lifecycles through a recycling program, ensuring maximum resource use and minimal environmental impact. Their focus lies on developing cells and batteries for electric vehicles, primarily two-wheelers, three-wheelers, and four-wheelers. Additionally, they recently rebranded their mobility business into Amphion, which now functions as an asset management company. Log9 has successfully secured $40 million in its Series B funding round.

ReNew Power: Renewable Energy Leader

Established in Delhi NCR in 2011 by Sumant Sinha, ReNew Power is a leading independent power producer. They generate over 8 GW of clean energy and achieved unicorn status in 2017. Continuously expanding, ReNew partners with companies like Larsen & Toubro on green hydrogen projects. With an ambitious goal of owning 18 GW of renewable assets by FY25, ReNew is a key player in India's journey towards decarbonization.