A
A method used to objectively evaluate the environmental impact of a product, such as hydrogen, by measuring greenhouse gas (GHG) emissions throughout its entire value chain and lifecycle.
The qualities or properties that define the characteristics of Certification Schemes.
B
The process of injecting hydrogen into natural gas networks to create a hydrogen-natural gas mixture.
In Colombia, a barrier, challenge, or circumstance that hinders compliance with existing voluntary or mandatory Certification Schemes.
C
In the context of hydrogen or its derivative products, the economic activities involved in their production and distribution, including but not limited to production, conditioning, storage, transportation, regeneration, and commercialization.
In relation to a Certification Scheme, the process conducted by an independent agent to issue a statement confirming that, based on the agent's verification and assessment, hydrogen or its derivatives meet specified sustainability requirements and attributes throughout their value chain, from production to delivery to the end user. (Hydrogen Council et al., 2023).
In the context of a Certification Scheme, an electronic document issued by an independent agent that verifies and guarantees that hydrogen or its derivatives have been produced, transported, and/or marketed by a value chain participant in accordance with the requirements and attributes of the Certification Scheme. (Hydrogen Council et al., 2023; GIZ et al., 2022).
A group of companies, institutions, and/or organizations focused on a specific theme or area. This grouping is not limited by geographic boundaries.
A criterion that stipulates the power plant used for hydrogen production must be situated within a specific geographic area close to the production site. This requirement, for instance, is necessary for hydrogen certification within the European Union.
Means the criterion that renewable electricity is consumed at the hydrogen production plant at the same time as the renewable electricity was produced. For example, this criterion must be met in the European Union for hydrogen certification purposes.
In the European Union RED II Certification Scheme, "Renewable liquid and gaseous fuels of non-biological origin".
D
Products produced from hydrogen, including but not limited to ammonia, methanol, and synthetic fuels.
E
Synthetic fuels produced from water and carbon dioxide using electricity, such as e-methanol, e-gasoline, and e-diesel.
The mechanism that encompasses the evaluation and verification process used to issue a Certificate of Origin and defines the attributes or criteria that hydrogen or its derivatives must meet to obtain certification. (Hydrogen Council et al., 2023).
F
Non-Conventional Renewable Energy Sources.
G
Greenhouse Gases.
H
The first element in the periodic table and the lightest chemical element. Its atom consists of one proton and one electron. Hydrogen is stable as a diatomic molecule (H2).
Hydrogen primarily produced by water electrolysis using electricity from renewable energy sources. The generation of hydrogen through other methods, such as biomass gasification or biogas steam reforming, may also qualify as green hydrogen if sustainability standards in biomass production are met. This study adheres to the definition of "green hydrogen" as outlined in Article 5 of Law 2099 of 2021.
A defined geographic area where economic activities focus around a specific theme or sector. The English term "hub" can be translated into Spanish as “intercambiador,” “centro logístico,” “punto de conexión,” “concentrador,” or “nodo,” depending on the context.
A geographic area where economic activities are organized to optimize the production, storage, transport, and local demand for hydrogen, including associated industries and derivatives. This setup utilizes shared energy and transport infrastructure to achieve economies of scale. A green hydrogen hub specifically refers to the production of hydrogen using electricity generated exclusively from renewable sources. For the purposes of this study, "green hydrogen" is defined according to Article 5 of Law 2099 of 2021, which includes hydrogen produced sustainably from renewable energy sources.
P
A generic term for processes that transform renewable electrical energy into synthetic fuels or feedstocks. The "X" denotes various products, including gases, liquids, chemicals, or heat.
V
A term commonly used in hydrogen potential studies to describe an extensive area that encompasses one or more hydrogen hubs.
