Tag Archives: technology

Low-carbon Hydrogen

I came across a point made by a supporter of low-carbon hydrogen when others were arguing that green hydrogen should be reserved for hard-to-abate sectors, but not for other sectors that can easily decarbonise through a lower-cost pathway instead. The point was that if low-carbon hydrogen was only going to target the hard-to-abate sector, the market size simply isn’t enough to create the scale necessary to drive down the cost of low-carbon hydrogen.

This comes at a time when we are discovering that some of the sectors that could actually pay for low-carbon hydrogen are those with much lower-cost approaches to decarbonisation (for example, food product or food services companies). So why would they be willing to pay higher price for low-carbon hydrogen? Technically, this is where economics starts to break down. Part of the reason is that the end customers are willing to pay – this is especially possible for consumer products where the agrifood industry may be able to differentiate the introduce the food prepared using low-carbon hydrogen. This is exactly what some Seven cafes in Japan is doing.

And to a certain extent, every industry starts out this way; if solar panels were simply looking to the locations with huge energy demand in the day, and also lots of solar resources for power generation, the market is going to be incredibly small. And certainly insufficient to enable the lower cost from economies of scale. So finding use cases and continually expanding them is important. While it might be admirable to keep trying to create premium products and then price it well, the alternative way of getting economics in your favour is actually to keep innovating on use-cases and focus on growing scale in a way that lowers unit cost. This then allows for further expansion of demand and use which improves learning at manufacturing and drives the cost advantage further.

That is the story of China’s manufacturing rise. And Lidar technology is a great example. The original use case for lidar technology was very limited to very specialised fields where great precision was needed in sensing and mapping physical spaces. It was initially used almost exclusively in military applications and would probably have remained so if not for China entering the picture and driving down costs through sheer manufacturing scale. By pushing down prices to particular thresholds, the mass market use case in EVs and other driver-assistance technologies emerges and serves to expand the pool of demand further.

During the hype of low-carbon hydrogen during 2020-2023, people were expecting that the cost of hydrogen production could be pushed down to such levels. Yet if we examine the value chain and recognise that the opportunity cost of using renewable electricity for hydrogen production, we would see that it was difficult for hydrogen production to compete with electrification as a commercially viable approach for decarbonising a lot of low-heat industrial applications.

An alternative path to commercialising low-carbon hydrogen is needed; and it is more about finding other use cases. It could be locations where fuel is needed to run mobile applications, or where transport of liquid fuels were prohibitively expensive and being able to easily produce it make sense. And finally, one of my favourite approach, which I am sure would be the first early commercialisation pathway: colocating green hydrogen facilities with biogas/biomethane production facilities, producing green hydrogen, then use Sabatier reaction (methanation) to produce e-methane, boosting the overall output per unit biogenic feedstock.

Yet even then, it is still necessary to drive costs down in order to be able to produce a product catering to a large and expanding market. Even for that pathway highlighted, the actual demand possible for a single hydrogen project would be limited by the available biogenic carbon dioxide which is limited by the scale of the biofuel/biogas plant. These are all bottlenecks of the renewable industry that needs to be managed. Wind and solar, especially solar is a lot more disconnected from local supply chain and ecosystems in order to pull off a successful project as they are modular and largely plug-and-play. While it means government have less hard work on creating the supply chain, there is less local benefits reaped or job opportunities created from building out solar facilities than if the market starts looking into biofuels and hydrogen.

Ultimately, the economics of hydrogen requires very strong government collaboration and the actual boots-on-the-ground work of creating the supply chain, infrastructure and delivery mechanisms. To tap into some pockets of willingness-to-pay at the moment would help.

Blunomy & bioenergy

My blog has always been relatively free of direct stuff on my work but here’s just a post where I wanted to document some of the work that the Blunomy/Enea team had worked on over the past couple of years.

Moreover, it has been over a year since I stepped up to take care of our Renewable Fuels practice at Blunomy for the Asia Pacific. Things have been really challenging and tough on the energy transition front for the world, and for the business of consulting but when I look at these analysis and work we’ve put out, I’m reminded of how far the industry and market has come.

Some of these materials I’m putting links to are available as ‘publications’ on our website, but some of them have been put out by our clients who have decided to make some of our work public.

This corpus of work followed public sentiments and appreciation of biogas and biomethane as a source of energy across Europe, Australia and New Zealand. Starting with awareness-building and education on this source of green energy that contributes also to circularity, we went on to develop analytical pieces focusing on feedstocks, understanding feedstock value chains, as well as more advocacy pieces that cuts through the challenges in the industry to recommend suitable policy intervention should the government determine this was a worthy cause to pursue.

Blunomy continues to build upon our experience and expertise. During this period, we also performed due diligence on more than 50 projects across different parts of Europe, looked into impact assessment as well as the help clients develop relevant investment cases for this business. Until biomethane becomes a more mainstream form of green energy, the work will not end. Even at that point, there will be new challenges and issues to overcome.

Policy crowding out

Is job creation the responsibility of the government or businesses/entrepreneurs?

Sure, most governments in capitalistic democracies work hard to reduce red tape, improve ease of doing business and provide all kinds of support to businesses. But can policies to create jobs end up crowding out the private sector activities that create jobs, perhaps even undermining the private sector activities?

For example, when EDB in Singapore attracts MNCs that comes into Singapore and starts hiring, providing good and stable jobs, do they end up disincentivising prospective entrepreneurs from starting their own business? Do they also bid up the cost of strong junior hires for the local companies that need them more? Do the companies that comes into the Singapore market compete out local firms who may have been able to perform the same services in the local economy?

Is there a risk that existing investments in the market hold-hostage our domestic policies? Take, for example, the oil & gas industry in Singapore; do its presence slow down our climate policy? Would the fact that government is busy attracting companies and making things smoother for them cause them to compete more effectively with other local companies who may not have that same support from our own government?

Just bringing up the questions worth pondering over. I’ve no answers but I think it’s worth actually looking into actual data and finding ways to understand some of the answers to these questions I’ve raised.

Artificial Intelligence

I realise I’ve never written on artificial intelligence. GenAI swept the world quite a bit over the past 2 years and of course, the consciousness of it in the market since ChatGPT was made available for public use had driven Nvidia’s stocks up insanely.

I had realised that since I’ve got a collection of writings in the public domain from since 2009, it would not be hard for me to train an LLM to be able to almost think and write like me at least to the extent of views, ideas and information I have expressed.

The truth is I’ve somehow avoided using AI to do my work; rather, I’ve been using it more to gather and synthesize information, help me identify blindspots and figure out perspectives I might have missed. I know that what we have observed in the publicly available tools is just displaying a fraction of their potential and capability but I feel that ultimately, we are still hitting back at the same constraints that holds us back as humans. Resource.

AI continues to suck up computing power, materials and energy in order to work. This is almost silly to the extent that we are feeding machines copious amount of energy in order to produce output that pale in comparison with a human being. ‘Biological energy’ so to speak, is far superior and we already have the human brain that allows all of us to perform at a far higher and more meaningful level. Of course there are lots of ethical and safety issues confronting us as we develop AI further, and I’m not decided whether we should necessarily stop the developments – all I can say is that we are getting distracted by AI.

We are embarking on an almost insane hype in the market for AI while ignoring the greater problem that confronts mankind today – climate change. And we ignore it at our peril. AI, like the many other engineered geopolitical crises, are chipping away at our attention, energies and resources to deal with the things that matters much more.

I really believe we can do so much better with the struggles and challenges in this world if we had not been distracted by these things. I have no doubt AI is going to be important and influential, but along with a lot of other innovations that have radically changed our lives, it may only serve to exacerbate problems that are still not well appreciated by us, while taking away resources to solve the problems that are apparent today.

Primary energy fallacy

I think more people need to understand this concept that was attributed to Michael Liebriech, a thought-leader in the energy transition. Sam Hamels just wrote a pretty short explainer of its implications on Linkedin, which I encourage you all to read.

The assumptions are simple and does not address some of the other obstacles along the way but it is important that we should not be overwhelmed by the gross energy requirements in primary energy terms when we recognise that a lot of primary energy in the form of fuel are lost in the process of converting them into energy.

There are other obstacles along the way however, when considering that the most viable and economic renewable electricity sources are typically wind and solar, with substantial hydropower in the mix for certain geographies. These include:

  • Transmission and distribution infrastructure:
    • Hydropower tends to be farther away from demand centers so the distance of transmission makes the infrastructure expensive
    • Wind and solar tends to be intermittent which means that a lot more needs to be transmitted during the times they are produced while the infrastructure remains underutilized when they are not available
    • Overall capacity will need to be increased compared to the fossil energy regime
  • Energy storage infrastructure:
    • While hydropower dams could benefit from becoming pumped storage, other renewables such as wind and solar will require significant energy storage in the grid in order to reduce the need to overbuild (because of the point above)
    • Energy storage will also help provide the ancillary services for the electricity system as fossil plants retreat from the system (eg. reserve markets, frequency and voltage supports) while it becomes more volatile due to intermittent renewable electricity.
    • A lot more investment into stationary energy storage will be required. At least before the more lofty vehicle-to-grid concepts kick into place.
  • End-use system/equipment changes
    • To reap the benefits of the improved efficiency of an electricity based energy system, there will be a need to electrify more which means end-use equipment will need to be changed – assuming we’re trying to change a whole fleet of equipment with no regard to remaining lifespan, we are not properly using up our invested assets.
    • Typically, fuel-driven systems have longer lifespans than those driven by electricity – that may have to do with the fact that fuel-driven systems are more mechanical and have less delicate circuitry systems. Of course, that varies with specific use-case and appliance but what this means is that you might still face more frequent replacement, and the environmental cost of that might need to be carefully considered.
    • In some cases, the change in end-use equipment requires further infrastructure support. The most important example is electric vehicles, which need the support of a robust charging network – that must be supported by improved distribution networks in the grid.
    • Besides the grid, institutional improvements that properly allocate costs and reflect them to customers are necessary as well. Sometimes, it may make the transition harder as well. For example, the peak demand pricing of electricity markets drove a bakery in Queensland Australia to change their electric ovens to gas fired ones because they absolutely have to bake their breads in the early hours of the morning.

Now the reason I’m listing all these other obstacles is to challenge us to think through the solutions needed having convinced ourselves that we actually can work on getting enough supply into the system. There is still a lot of work to do to ensure this supply actually matches the real demand. Looking at gross energy terms is simply not enough, as evident from the primary energy fallacy itself.

Land resources

I don’t think we’re being imaginative or aggressive enough with tackling climate issues. Nor are we thinking about how to sync-up our efforts to grow our economies, improve lives together with environmental conservation efforts. There are plenty of false dichotomies that result from how we’ve developed our economies. It’s haunting us and discouraging us from thinking in worthy directions for problem-solving.

One example of a dichotomy that may turn out to be false in the long run is the issue of food versus fuel. The food shortage problems today is driven by logistics and localised disaster more than aggregate unavailability or insufficiency. If anything, instead of trying to outright ban dedicated energy crops or crop-based feedstocks for biofuel production, it would be wiser to encourage a programme of reducing desertification and farming of marginal land with resilient crops that can be used as feedstocks for biofuels.

Another involves questioning of thermodynamically-unappealing solutions. Direct air capture (DAC) requires that energy is so cheap that you should mechanically capture the carbon dioxide from the air with machines. And yes, it doesn’t take as much land per unit of carbon captured. It could even compete with vegetation/forests. One could consider through the lens of this competition with nature: Forests takes about 860 square km of land to absorb 1 million tonnes of carbon dioxide whereas if you were to build a DAC plant plus a solar farm powering it which can capture 1 million tonnes of carbon dioxide a year would only take about 30 square km, which is ~3.4% of the land area. [my calculations are back-of-envelope and derived from unit figures here and here].

Yes, but then what about the limited lifespan and all the value chain emissions from making solar panels and DAC systems? Indeed, those trade-offs are worth thinking about, which is why we probably won’t advocate replacing natural habitats and forests with DAC. A forest is more than just sequestering carbon, but also provides other ecosystem services such as enhancing biodiversity, increasing groundwater supply, and even helping to clean the water and reducing the risks of desertification.

At some level, biofuels compete with synthetic or e-fuels; and biomethane perhaps is imagined to compete with hydrogen. But all of these are false dichotomies. The world needs us to keep working on different solutions and coordinate our efforts to scale them where they make sense. One can be purist about different things and get nowhere. Let’s try to lay out the trade-offs and work through those in specific contexts rather than seek to rule out solutions on the whole.

Hydrogen’s bad news

Things hasn’t been the most positive for hydrogen the past 2 years or so. Hyzon Motor is on the verge of ‘giving up’, while When one look back, it is a wonder why we felt comfortable ignoring some of the bigger problems associated with hydrogen. It is definitely less ‘trendy’ to tout hydrogen as the solution for the energy transition these days.

One of the challenge about the climate and energy transition is that it is a transition. And that means there is going to be change happening over time; and the challenge is that we don’t really know what the end point is in terms of the technology and pathways even when we know that we’re trying to have a go at net zero.

In the meantime, as we struggle to determine what we’ll use to fuel our aircrafts or vessels, we are making decisions on replacing these equipment, and trying to project cashflows over an asset lifespan or 20-30 years. These all without the certainty of the fuel being available is extremely challenging. So instead, we are more likely to bet on things not changing rather than things changing.

Hydrogen continues to face an uphill battle when it comes to the science, the technology and economics. But there is still good reasons for us to continue refining the technology we have. In the mean time, while we are still trying to decarbonise what we can, we try to leverage the resources that are available more immediately. We can optimise our biofuel supply chains more to achieve lower carbon intensity. Along that journey, we can improve our traceability of feedstocks and biofuel supply chains.

Now, biofuels or any of the new fuels will never be as ‘cheap’ as fossil fuel. And just because they are chemically almost equivalent to the hydrocarbons we dig from the ground doesn’t mean they are the same. This means we will have to continue working at pricing carbon and allowing the real price of carbon to hit all of us. Governments can protect the economically vulnerable not by blocking the transition but ensuring that more and more of that carbon revenues gets directed to support the vulnerable who may not be able to deal with the cost from the transition.

Biofuels could even be a commercialisation pathway for green hydrogen as the hydrogen can contribute to boosting the biofuel yields of organic feedstocks in the FT-Gasification pathway and improve the overall economics of the project when there is access to cheap renewable electricity. It’s almost like blending e-fuels into the mix already. This is a plausible intermediate step for us to encourage more green hydrogen production to sufficiently create more scale to bring down the costs.

The technology surrounding logistics for hydrogen then needs to improve before the end-use equipment would transform. Changing end-use equipment is still the hardest to do. Even if it’s just the heavy industrial users who have to change.

So the good news is that we may still eventually land on hydrogen in some shape or form. It may not be what we are envisioning now, but it’s vital to recognise that the time horizon is probably a lot more stretched out than we think.

Reframing our relationship with earth

This ad campaign by Activista, mainly targeting Space X on Earth day – I believe that was in 2021 – is brilliant. It helps to put things into perspective in terms of how we approach our resources and earth.

The message still rings true today and in many ways, it is saying something about the human heart. Our wandering heart often wants to look for something else to sustain ourselves. Something else that may not be designed to sustain us, but we want to make it what our lives depend upon.

Yes, as a Christian, I’m talking about Christ, who provides the salvation we need when we are wandering about seeking salvation through our work, relationships and other forms of addiction in our lives.

Significance of work

What does a job mean for you? What is work to you?

It used to be just tasks or collection of tasks that had to be done. The tasks were easily connected to the end goals.

Then things got complex and the tasks were clear but it felt more distant from the ultimate outcomes that the whole lot of people were trying to achieve.

Finally we did away with task-based identification of the work and changed parts of the work to be based on creating some kind of outcomes. In trying to connect the outcomes to the person, we lost the clarity on the specific tasks required. That can lead to undisciplined exhaustion of energies and burn out.

On the other hand, for all the jobs where tasks can be clearly specified, technology has been used to displace human workers. Leaving humans to only supervise or check through the results. In fact, at some point even the quality checks can be automated.

Where does that leave us? What does that mean about the future of work?

The future of work can be meaningful if we resume our human role of caring for who the outcome of work is for, and the manner in which the work is done. We carve out that higher role for ourselves by being capable of continuous improvement that focuses on the final objective of the work itself – the satisfaction of the user.