Hydrogen by source feedstock

Introduction

PE Media Network has adopted the hydrogen colour coding system, as used by the Energy Industries Council (EIC). We have categorised our data into these broad colour bands (see below). The colour coding is based principally on carbon intensity. Green hydrogen, which has zero carbon emissions, through to Black and Brown hydrogen, which have high carbon emissions.
Field Description
Type Type of hydrogen
Project Project Name
Scope Description of the project
Status Phase of project
Sub-status Additional stage of the project
Operator The project operator or promotor
Region Which continent
Country Name of the country
Location Name of nearest town or city
Announced start date Date at which the project will start
Technology group The group into which the technology type falls into
Technology Technology type or process

Technology graphs

Based upon data from the map above

Total number of projects by power source

Excluding unknowns

Total number of projects

By region

Total number of projects

By country

Glossary of terms

Hydrogen production via fossil fuels

Blue hydrogen Blue hydrogen is produced when natural gas is split into hydrogen and CO2 either by Steam Methane Reforming (SMR) or Auto Thermal Reforming (ATR), but the CO2 is captured and then stored. The ‘capturing’ is done through a process called Carbon capture and storage (CCS) or Carbon capture, utilisation, and storage (CCS).

Turquoise hydrogen Hydrogen produced from natural gas using the so-called molten metal pyrolysis technology is called 'turquoise hydrogen' or 'low carbon hydrogen'. Natural gas is passed through a molten metal that releases hydrogen gas as well as solid carbon.

Grey hydrogen Grey hydrogen has been produced for many years. It is a similar process to blue hydrogen – SMR or ATR are used to split natural gas into Hydrogen and CO2. But the CO2 is not captured and is released into the atmosphere.

Brown hydrogen Brown hydrogen is created through brown coal (Lignite) gasification. Hydrogen is produced by first reacting coal with oxygen and steam under high pressures and temperatures to form synthesis gas, a mixture consisting primarily of carbon monoxide and hydrogen.

Black hydrogen Black hydrogen is created through black coal (Bituminous) gasification. Hydrogen is produced by first reacting coal with oxygen and steam under high pressures and temperatures to form synthesis gas, a mixture consisting primarily of carbon monoxide and hydrogen.

Hydrogen production via electricity

Electrolysis is the process of using electricity to split water into hydrogen and oxygen. This reaction takes place in a unit called an electrolyser. Electrolysers can range in size from small, appliance-size equipment that are well-suited for small-scale distributed hydrogen production to large-scale, central production facilities that could be tied directly to renewable or other non-greenhouse-gas-emitting forms of electricity production.

Green hydrogen Green hydrogen is produced using surplus renewable energy / electricity.

Purple/Pink hydrogen Purple or Pink hydrogen is produced using surplus nuclear energy / electricity.

Yellow hydrogen Yellow hydrogen is produced from mixed-origin grid energy. The term has also been used to describe hydrogen solely produced by solar electricity, hydrogen powered by nuclear and hydrogen produced by biomass.
PE Media Network understands that some projects might not necessarily fit neatly within the confines of a particular colour and therefore, may be considered on the boundaries between colours.