PITTSBURGH, Pennsylvania, Dec. 1 -- The U.S. Department of Energy's National Energy Technology Laboratory issued the following news: A powerful new Hydrogen Estimator for Logistical Planning (HELP) tool has been released that can estimate the potential to store pure and blended natural gas-hydrogen mixtures in a range of subsurface formations -- an important aid to help decarbonize the American economy and energy sector with clean hydrogen options. The tool is a product of the Subsurface Hydro  more