Bob Wyman for Congress (NY CD-10)

But, given that hydrogen has 3x lower energy per volume than methane, won't it be necessary to increase pipeline gas pressure by 3 times in order to delivery the same number of BTU's? And, won't we need to adjust every regulator to allow higher gas flow? Sounds very expensive...

Yes, but those modifications could be mandated over a long period. Wouldn't cost much extra as you're upgrading anyway. Perhaps aim to make complete switch by 2035. Phase into 20% before this is very doable.

We're already spending billions every year to replace leak-prone pipe given current pressures. If we need to increase pressure, we'll need to replace even more *before* we can do the increase. Also, you can't add much hydrogen until after changing all regulators. Very expensive!

Yeah of course we'd have to upgrade the regulators and some of the pipes etc. But much of these upgrades can happen over the next 15 years as part of regular maintenance. @EAASolutions and @IrelandHydrogen have good steer on a roadmap for this.

In New York City, National Grid (KEDNY) plans to take 20 years just to replace the existing Leak Prone Pipe -- given current pressure. Tripling the pressure would increase the number of pipes to replace... And, we can't use much hydrogen until ALL regulators have been changed.