One of the key issues making hydrogen less attractive than batteries for EV use is distribution. Hydrogen needs to be kept cold and pressurized, and in a renewable energy context it’s generated intermittently, making the logistics of trucking it around considerably tougher than those of gasoline.

But hydrogen blending technology offers a potential solution: injecting hydrogen directly into the existing natural gas grid could push it quickly and efficiently out across an entire city, and gas stations could simply separate it out and suck it back out of the gas pipelines to fill their tanks. The distribution problem would disappear, enabling hydrogen pumps to pop up all over town.