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The Columbus, Indiana-based manufacturer, which supplies diesel engines for boats, heavy-duty pickups, delivery vehicles, buses and semis, laid out a comprehensive strategy in its \u201cHydrogen Day<\/strong>\u201d presentation, covering its production of fuel cells, stationary power systems, fuel tanks and electrolyzers to help companies make their own hydrogen. Cummins is testing hydrogen-powered big rigs, but expects both transit operators and steelmakers needing to lower their carbon emissions to be the best early markets, Chairman and CEO Tom Linebarger<\/strong> tells\u00a0Forbes<\/em>.<\/p>\nCummins\u2019 intensified focus on hydrogen comes as investment into the elemental fuel surges across the transportation industry. Zero-emission hydrogen fuel cell cars from Toyota, Honda, Daimler and Hyundai have been on the road for more than a decade, but the rise of battery-electric cars, championed by Elon Musk and Tesla, and limited number of hydrogen fuel stations has made the technology less compelling for passenger vehicles. However, the lower weight and rapid refueling time that hydrogen fuel cell power systems offer relative to batteries have made them increasingly appealing for heavy-duty vehicles. Multibillion-dollar plans are taking shape in that industry, led by\u00a0Toyota,<\/strong> Hyundai,\u00a0Daimler<\/strong>\u00a0and\u00a0startup Nikola<\/strong>, and Cummins sees a big opportunity to be a key supplier.<\/p>\n