A decisive energy shift is underway on India’s factory floors. Large and mid-sized manufacturers are installing captive renewable energy—especially private solar and wind-solar hybrids—to meet their own power needs, hedge against tariffs, and cut carbon without waiting on the public grid. In Tamil Nadu, one of India’s most industrialized states, captive and open access renewables now underpin a sizable share of industry’s electricity—a microcosm of a national pivot from monopoly-era electricity to decentralized clean power. This transformation is not loud, but it’s profound: captive renewables are improving energy security, lowering costs, and accelerating green growth—one industrial roof, ground mount, and group-captive SPV at a time.