Tag Archives: climate

Carbon capture

I think there is a place for carbon capture and utilisation. But just not the way we have been thinking or approaching it. Carbon capture and storage in some kind of cavern or project and expecting it to hold on to the carbon dioxide does not make sense. But many other carbon sequestration approaches do: applying biochar to ground, injecting carbon dioxide into cement to strengthen the concrete, or any processes that somehow mineralises carbon dioxide into some kind of other compounds including carbonates.

All of the approaches where carbon dioxide is somehow transform into some other form which is more permanent and serves a function make sense. The technologies involve in terms of filtering the carbon dioxide to a certain level of purity, conveying it and handling it, will play important role in the low-carbon economy.

The reason is that carbon dioxide is still an essential part of many industrial production processes. In any case, the main challenge of climate change isn’t really the presence of carbon dioxide – it is the fact that we are taking out fossil carbon and then turning it into carbon dioxide, releasing it into the atmosphere faster than it can be cycled back into other parts of nature. This build-up of carbon dioxide, strengthens the greenhouse effect, making things really nutty for the climate.

But when we are taking biogenic carbon dioxide and using it, there is nothing wrong because the carbon was sequestered from present carbon dioxide in the atmosphere. Using it merely ‘recycles’ the carbon around. Human systems that does carbon capture can play that same recycling role. Take for example the capture of biogas from the anaerobic breakdown of organic matter. That is a mix of methane and carbon dioxide gas; the carbon dioxide gas can be filtered out and then used for industrial processes, while the pure methane (or biomethane as we call it) can be used for energy purposes – combustion to produce heat and drive turbines to produce electricity.

Moreover, the carbon dioxide produced from combustion can be captured, purified, and utilised just like the carbon dioxide filtered out from the biogas. This carbon dioxide can actually be combined with green hydrogen to form many other hydrocarbon molecules that act as our more familiar fuels that are compatible with many of the engines and systems we have. Not just that, the combusted fuel will emit that same ‘biogenic’ carbon dioxide, which would not count as greenhouse emissions because they are in the short-term cycle. Nevertheless, we can still capture that carbon dioxide and then return it to those uses we talked about.

To me, that’s the role of carbon capture in the future – it is really to recycle the carbon just as nature already does it. It is not to erase the carbon dioxide that has already been emitted. It is really naive to think that spending more energy trying to capture the emitted carbon dioxide can be more worthwhile than using alternative forms of energy that do not emit so much carbon dioxide in the process. That would be the role of these technologies in the future.

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.

Media and narratives

I used to love The Economist, and I even used to collect various articles to prescribe them to read for my students whilst I was teaching Economics at A Levels. It’s been a great influence on the way I write and approach sharing my opinion on things, and I enjoyed the dry wit and British humour, but these days I find the anti-China slant a bit uncalled for.

Take the recent report on China’s dominance in renewables. One of the article that talked about the improvement of air quality in China has the headline, ‘China’s air-quality improvements have hastened global warming’. I used to laugh at The Economist’s self-deprecating humour and when they lambasted silly but political manoeuvres of US presidents. When they try to criticise illiberal practices in China, I get it and understand the Western liberal lens that drives those considerations. However, this is a blatant low blow, a stark contrast to the highbrow approach that I would usually associate with The Economist.

The article isn’t even so much about China’s air quality but the science behind how some of the aerosols emitted by coal plants could have helped with cooling the atmosphere and how geo-engineering techniques based on that could play a role in climate change. Though latest studies suggest this will probably not be enough to cope with challenges in the shifting agriculture landscape as a result of climate change.

We are entering a new era where narratives are being distorted by English-language media, and it doesn’t help the rest of the world understand China any better.

I recall in 2018, when The Economist started a new column on China called ‘Chaguan’ (which really means Tea House in Chinese), they wanted to understand China better and to help the world do that. That hadn’t quite work.

Understanding carbon intensity versus fuel emissions

One of the reasons I’m writing this article is that Asia Pacific is increasingly recognising the role of renewable and alternative fuels, especially biofuels. And one of the ‘measures’ of sustainability of these fuels, which may be low or zero carbon in emissions, is the carbon intensity (Scope 3). However, it often gets confused with the fuel emissions (Scope 1), and so I thought it was worth explaining clearly.

Fuel decarbonisation is so critical that it covers part of decarbonising electricity generation. Relying on a mix of intermittent renewable generation with short-duration storage in the power system is very challenging. Gas peakers are going to be integral in a system that has a significant share of wind and solar power. Yet there are concerns about carbon emissions associated with gas.

Decarbonising natural gas use and other liquid fuel-use remains a critical lever to achieve net zero by 2050. Renewable fuels, especially biofuels, enable a drop-in solution that bridges our immediate decarbonisation needs with future alternative fuel, or complete electric solutions. There are concerns however, with the sustainability of biofuels, and one of the ‘measures’ of sustainability of these fuels, is the carbon intensity of it.

The carbon intensity of the fuel refers to the lifecycle carbon emitted in the production of the fuel, usually expressed in gCO2e/MJ (reads: grammes of carbon dioxide equivalent per mega-joules). For fuel that is zero emissions, or non-reckonable carbon emissions, there are still carbon emissions associated with its production, processing and transportation before its energy is used. And so if it’s being transported from such a location, or that too much logistics were involved in its feedstock collection, those emissions gets accounted for in this carbon intensity metric. EU use thresholds for carbon intensity to determine if the fuel is ‘sustainable’ or not – on the basis that if the fuel does not achieve a level of emissions reduction, then it cannot be considered renewable.

As should be clear by now, carbon intensity is different from the concept of fuel emissions. The carbon intensity value is not reflective of the emissions of the fuel itself but more of its lifecycle, making it a Scope 3 emission as opposed to Scope 1. Take, for example, a regime where there is a carbon tax associated with fuel emissions, the carbon intensity of the fuel would not actually be considered within the calculation of the carbon tax at all – especially if the tax is designed only to apply to Scope 1 (direct emissions).

However, such a regime where a carbon tax is applied to Scope 1, should be mindful that they do not end up incentivising the use of “low-carbon fuel” that have overly high carbon intensities. Because this would defeat the purpose of trying to price the carbon emission as the direct emissions become displaced by emissions in some other parts of the fuel supply chain.

Carbon intensity is also why the International Maritime Organisation have been pushing for the Net Zero Framework that considers the ‘well-to-wake’ emissions (lifecycle emissions) instead of the ‘tank-to-wake’ (direct Scope 1) emissions. If we are focused only on the ‘tank-to-wake’ emissions, then technically, grey hydrogen or grey ammonia would have zero carbon emissions. We don’t want a case where the emissions are not reduced at the system level but just shifted from one part of the value chain to another – that’s why we care about the carbon intensity of a fuel, not just its direct emissions.

It’s probably worth pointing out I first wrote this article on linkedin and you can find it here.

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.

When oil saved the environment

In Seth Godin’s new book, This is Strategy for, he had a chapter (the book has over 200 chapters, all of them short and highly readable) on killing whales.

He documented the rise of the whale-hunting industry in the 1800s where sperm whales were hunted down for their blubber. The activity was both dangerous and lucrative because a single sperm whale’s blubber could yield many barrels of lamp oil. The demand for lighting onshore and offshore fueled the whaling activity.

For a time to the mid 1850s, it seemed like they could just go on and hunt sperm whales to their extinction. Yet the earth today still has sperm whales. Thanks to the discover of petroleum and hence the advent of keroscene used in oil lamps. The cost of keroscene was much more competitive than lamp oil made from whale blubber and the petroleum industry was also costing less human lives.

Climate solutions that displace fossil fuels would need to achieve cost reductions to scale. But we could all inprove their chances by removing fossil fuel subsidies and pricing carbon. Of course, that will “hurt” the cost of living for many people. But if we think about it at system level, it is more about a sort of attachment to the current status quo of how we value different things, and refusing to change that.

I don’t think we could derive any sort of moral authority from the market to say we’re producing something that destroys our future because it is cheaper. We may not have a future to spend that surplus savings on. At the system level, we will have to help one another cope with changes.

Learning to struggle

If there’s one big thing we need in society that the education system is not properly teaching us, that is the need to struggle. There’s this sentiment in the education system that struggling suggests something is wrong, that is a state to transit away from, and to be avoided if possible. But what if struggling through difficulties, challenges is actually an important aspect of life? What if it takes struggling in order to truly learn something? Not just to acquire head knowledge but also to have a practical sense of how to use that knowledge?

How do we teach people to be resilient otherwise? How do we cultivate a generation of people who can actually deal with those problematic issues confronting mankind (eg. climate change, sharp inequalities, cracks in market capitalism, etc)?

The monolithic system

What if the sun could give us all our power and energy, to drive everything we need to power our economies, perform our activities and live life? Or what if we can afford everything that we ever want and need? What if money can buy us everything? What if this one thing can solve all your problems?

If all that hypothetical questioning sounds like a bunch of marketing crap or storytelling, they are actually fantastic devices that somehow appeals so much to our psyche. But they can simultaneously be truth with caveats and also complete bullshit.

In case you are curious, I provide the solutions:

  • The sun does power a lot of things and is capable of providing sufficient energy for all of our activities and more but capturing it and channeling them properly is had.
  • We, as a collective earth, already is able to afford everything we produce and will be able to satisfy all of our needs – wants on the other hand are completely manufactured by ourselves and can be managed.
  • Money can buy us everything that can be bought (or sold).
  • One thing that can solve all your problems is a mental reframe to see them not as problems but challenges to help you grow.

There is always some kind of rhetoric to get you out of those conundrum but doesn’t really address the actual psychological appeal of those questions. The thing is that we naturally gravitate towards some kind of monolithic system or idea where we want a single solution or something that becomes a common denominator for everything else. Money comes close to becoming that. Yet that has probably demonstrated that such a system do not actually deliver what you think it would.

Likewise, the market economy and market system isn’t going to be the one that delivers us all from the problems around energy, climate change, innovations and poverty elimination. The market system needs to be rightly placed for what it is good for just as we should see wind and solar power in their place within the energy system rather than expecting them to deliver all our needs. Even oil and gas was not able to power all of our world’s energy needs even if they came close to that. Monolithic systems reduces resilience even if they provide scale economies.

Small firm in energy transition

The energy transition exposes the weakness of the current energy system of the world. It reveals how much we are reliant on a few resources to draw our energy to power the economy despite how dispersed and distributed energy resources are.

Take for example a rural area in Indonesia, where there are small farms and villages – and they are relying on diesel or kerosene refined and fetched from some far flung areas in order to power their generators or farm equipment. All the while just sitting beside heaps of bioenergy resources that are seen as waste.

The emphasis on low-carbon economy helps us recognise that we may have to start shortening our supply chains and reducing its complexity if we want to decarbonise our economies. Part of this has to do with how stuck we are between the CAPEX and OPEX distribution of the manner we consume energy. By consuming fossil fuels, we shift the burden of costs mostly to the OPEX since equipment are mostly standardised and so they are cheaper to procure and use while we adopt the long supply chains needed to achieve the delivery of fossil fuels on regular basis.

If we were to shift to shorter supply chains where the distributed energy resources were consumed instead, there might be more local equipment needed, the CAPEX might increase. But OPEX may actually decrease because now you’re saving on storage or disposal costs of some of the feedstock that might go into making the fuel you need.

If the world is to develop shorter supply chains, it will need more small firms. And governments all around the world needs to know better how to encourage, support and empower small firms to rise up to the challenge. We need local firms who are familiar with the local constraints, context and needs. They need to be upskilled technically to rise up to the challenge and generate solutions.

This mode of development is vastly different from the old school model of having a big multi-national firm come into a less developed location to help ‘develop’ it by reshaping local demands. Aside from how much this harks back to colonialism, it is creating long supply chains which seem to create more jobs but is not doing much for the climate and environment.

Hydrogen ecosystem II

When I first penned the blog post on hydrogen ecosystem, I had a couple of ill-fitting ideas that I thought could come together but I did not successfully pull them together beyond putting them in a single blog post. What I really meant to say is that the government will need to do more work understanding and studying the nuances of the ecosystem and industrial value chain that makes sense for green hydrogen and then perhaps take action to ease the struggles of the market in developing projects.

The thing about green hydrogen is that it is something that requires quite a fair amount of new infrastructure. And the situation is uncertain because governments are thinking that maybe electrification will be more dominant and want to avoid investing in white elephants. Or they think that it is all a zero-sum game due to budget and resource constraints and that investing into transmission and distribution which meant favouring electrification would naturally be inconsistent with investing into more gas infrastructure.

In reality however, green hydrogen is made from renewable energy and hence the alleviation of electricity grid issues that foster more wind and solar can also support the development of a green hydrogen sector. The key here again is that the government needs to have better knowledge of how different parts of the value chain works and the value they are contributing.

Only in appreciating that, the governments can make the right moves.