About Energtek, an independent gas storage reference

What the site covers

Energtek explains the hardware of gaseous fuels: compressed, adsorbed and liquefied natural gas, renewable methane and hydrogen. The guides follow the fuel from its source through compression, liquefaction or adsorption, transport by pipe or truck, the fueling station and finally the vehicle or appliance that uses it. Two tools, a tank capacity calculator and a fuel energy comparison, turn the same data into answers for a specific case.

How the guides are written

Figures come from primary and reference sources wherever they exist: national laboratories and agencies, standards bodies, the NIST reference data for gas properties and peer-reviewed literature. Each guide lists the sources it relies on at the end. Where a number depends on conditions, such as the temperature of a cylinder or the type of adsorbent, the guides state the conditions next to it. Figures that cannot be traced to a source are left out.

The site recommends no products, sells no equipment and carries no paid placements. Company and project names appear only where they help explain how a technology developed.

How the site is organized

The guides sit in four sections that follow the route a gaseous fuel takes. Natural gas storage covers compression, liquefaction and adsorption. Vehicles and fueling covers cylinders on vehicles, stations and conversions. Virtual pipelines covers moving gas by road where no pipe reaches, and hydrogen covers the same questions for a lighter, harder molecule. Each guide opens with a few key figures, ends with answers to common questions and lists its sources, and the glossary defines the terms they share.

Updates and corrections

Standards, targets and market figures change. Guides are reviewed when a source they cite is revised. The date at the top of each guide reads "Published" until the guide gains a new section or a revised figure after its release; from then on it reads "Updated" with the date of that change. Corrections and smaller additions made before release are part of the published version.

This website is an independent editorial publication and is not operated by Energtek Inc.