While brown hydrogen is most widely used today, green hydrogen is the ultimate goal
The hydrogen industry is so fast-paced, it should probably be counted in “dog years”
Green hydrogen is not only CO2-free, it’s net-zero on water usage as well
In case the title didn’t already give it away, hydrogen comes in many different colours. Selecting the right one for your application can make a world of difference.To say that all hydrogen is not created equal is an understatement. The types hydrogen produced and used in industry today have varying carbon footprints and impacts on climate change and our environment. Today, there are three main colours of hydrogen: brown, blue, and green.Let’s take a look…
What colour is your hydrogen?
Brown hydrogen, the most abundant in use today, is created from hydrocarbon-rich feed stock, such as methane gas, coal or other fossil fuels. Put bluntly, production of brown hydrogen is very dirty. For every tonne of brown hydrogen produced, you get – at a minimum – between 10 and 12 tonnes of CO2. That’s not even including the CO2 produced by the energy source driving the process, or the CO2 produced in transporting the hydrogen to the customer. In all, production and transport of brown hydrogen is very bad for the environment.Blue hydrogen is essentially brown hydrogen but where a significant amount of the CO2 has been captured. While blue hydrogen is much cleaner than brown, you still have the added step of capturing and storing the CO2 produced in the hydrogen forming process, as well as the issue of transporting the hydrogen to the customer.Now we get to my favourite colour of hydrogen (beyond purple, of course… have a listen to my podcast to find out what I mean about that!) Green hydrogen refers to hydrogen that is produced using renewable energy to split water into hydrogen and oxygen through water electrolysis. Often this hydrogen is produced on-site at the hydrogen consumer’s location, eliminating the issue and CO2 footprint of transportation. Green hydrogen is truly carbon-zero with no carbon footprint or impact on climate change or the environment.
A hydrogen movement on the rise
The hydrogen industry is fast paced. As I like to explain it, you could even say it moves in “dog years”. What I mean by that is that the industry is developing so quickly, if you thought you knew about the hydrogen market six months ago, it’s already a very different situation today. Green hydrogen is at the vanguard of these changes. Concerns over climate change, air pollution and the environment have put pressure on world governments to reduce their carbon footprints and enact programs and legislation to support the Green Hydrogen economy.And here at Nel, we’re excited to be at the forefront of it!
We use technologies like cookies to store and/or access device information. We do this to improve browsing experience and to show personalised ads. Consenting to these technologies will allow us to process data such as browsing behaviour or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
The technical storage or access that is used exclusively for statistical purposes.The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.