energy Archives - Kevin Low

Hoarding resources

New York Times just ran an opinion piece about Big Oil and whether the rhetoric about these big international oil companies actually push for the energy transition or not, their contribution to the development was probably not that significant anyways. There is minimal capital redeployment from oil & gas towards renewable energy. The truth is that capital coming into renewable energy is largely from other sources and areas.

The big oil players were in any case just trying to defend their turf when they invest into renewable energy; and in other instances, it was probably just more of a PR exercise. The recent big retreats from the rhetoric around energy transition can only serve to create more climate anxiety amongst the younger ones, and discourage us further about our ability to get the climate transition right. There’s really limited plan B options for us as the human race on earth facing climate change so everyone needs to work together regardless what the big oil is trying to do.

The biggest challenge for the world with the big oil not doing much to withdraw from the fossil fuel business is not about the market, the demand from the energy users but perhaps more about the people who are continuing to work within the big oil’s supply chains and operations. If we are serious about the transition, we need to give oil rig workers something new to work on that can help with the climate transition; we need to get the refinery process engineers to work for some other sort of plants. In general, we need a coordinated effort to transform our economies by making it a mission to do so.

When the world sent people to the moon decades ago, we were creating new industries using taxpayers’ dollars. We were using military spending to drive advancements that would usher in a new era. We could do the same with energy transition. It will take a lot of political will and convincing people but there is enough resources to redirect ourselves from the global warming path that we are on.

Gas in households

When corporates purchase carbon credits and try to ‘offset’ their emissions, environmental groups would accuse them of greenwashing and to a certain extent, tokenism. Yet when Victoria state government bans gas in new homes from 2024, environmental groups were pleased and herald it as some degree or progress and victory.

It is easy to pass this off as a big move. Developers of new homes may have more planning restrictions. Those buying new homes will need to stop using gas. Gas demand growth from households will slow down but gas use in homes are a really tiny fraction of 17% contribution to the state’s emissions by the gas sector.

At the system level, Victoria’s grid emission factor in 2022 is actually such that it emits 4.6 times more carbon dioxide equivalent than combusting piped gas for an equivalent amount of energy. You can easily work that out by consulting the greenhouse emission factors published each year. Of course, I’m probably ignoring some of the emissions associated with the distribution part of things and also with fugitives. The reason for this big difference is the presence of coal-fired power plants on Victoria’s grid. In any case, all renewable energy injected into the grid from wind and solar will be used. Coal-fired power plants provide the baseload and gas-fired power plants usually absorb the additional load demand. What this means is that during the times (early morning or in the evenings) when you’re using electricity for heating or cooking in households, it is quite likely you’re consuming more gas fired power than solar power (whose generation peak in the mid-day).

There are questions on the efficiency of the whole process. Burning gas at power plants and converting them to electricity will result in some energy loss, and then using the electricity to convert it back to heat will mean a bit more losses (less than at the power plant of course); so heat applications for electricity isn’t all that efficient.

And then there is the question of energy bills. Whether you are consuming gas directly in the house or indirectly through electricity in the system, you are going to bear the cost of the gas that is consumed. In Australia, a large proportion of the cost of energy isn’t really in the energy itself but the share of cost that goes into infrastructure, especially that of distribution. Going full electric in households serves to help decarbonise the system only when the renewable electricity is supplied during the times when household’s demand peak. For solar, this is unlikely to be the case unless the household installs its own battery system to charge when solar generation is peak in mid-day. Batteries, additional distribution network assets to cater to peak renewable generation, are all infrastructure that will add to the cost of electricity.

So let us be honest about it: banning gas in residential use is unlikely to move the needle much in terms of decarbonisation in the electricity system right now. At least not all that much in Victoria. It is going to push the problem upstream where it can potentially be managed better. But a lot more actions will have to be taken. Would it improve indoor air quality for homes? Maybe, if your house is not properly ventilated but I doubt it is a very serious issue. Would it really reduce energy bills across the household? Quite unlikely. What it could accomplish is some degree of tokenism to pacify the groups of people who thinks it is a good idea.

Yet it is probably a setback for decarbonisation because we are narrowing ourselves to decarbonise by using a narrow set of technologies and forgetting about the ability to decarbonise gas through biomethane.

Tailpipe emissions

We moved to Sydney earlier this year and one of the main highways that the buses move on to get to our place in the suburbs is Parramatta Road. It was a highway leading into the western suburbs but now it is just a road – a relatively narrow one for the heavy traffic that goes through it.

I recall one morning when I walked along the road to get to the bus stop that gets me a bus to the city. There were heavy trucks going down the road, with large SUVs and smaller passenger vehicles as well. I didn’t recall tailpipe emissions bothering me that much back in Singapore – perhaps only the heat that the cars were emitting then. But I noticed how much the tailpipe emissions were stinking up the air even in Sydney where it was less humid than in Singapore and smells tend not to linger or stay strong in the air.

It did make me wonder what the roads would be like without those tailpipe emissions. And that’s probably the dream of those EV companies and the policymakers who are trying to push for more EVs on the roads. Singapore could have done that way earlier; given our ability to manage the vehicle population through COE. Moreover, Singapore already has one of the highest taxes on vehicles in the world. This means the population was ready to shell out the kind of money that an EV would cost.

It is a fine balance to strike given that there’s a lot more consideration around the readiness of our electricity network infrastructure to develop the charging capacities needed. There’s a lot of thinking around whether our vehicle refueling infrastructure is going to be disrupted – and how we can manage those disruptions. Sometimes we just want the transition to happen immediately and for all of us to gain access to the latest technology at reasonable costs. Singapore has done a good job juggling these difficulties and we can do more to explain the linkages between systems to allow us to pinpoint and put pressure on the bottlenecks.

Big Fossil has a chance

I don’t want to call them big oil or big coal, or big gas anymore. They are big on fossil, fossil fuels. And they have a chance to make the future a better place; one that we all want to be part of. They have the opportunity; enormous opportunity to create the products and services that people need and want which will be good for them, and good for everybody else, not just good for the big fossil companies.

But to take advantage of this opportunity, they need to recognise people are not demanding for fossil fuels. They are demanding for energy, for access to energy, for cheaper energy. But that form of energy is fossil fuel, big fossil might retort. It is not. Fossil fuel is not cheap. It is not cheap because we all are paying in the form of greater natural disasters, in facing once-in-a-hundred-year floods almost every decade, in having to pay even more for heating during winters and cooling during summers. Fossil fuel is not what the world is demanding for.

Big fossil can ignore the NGOs, they can ignore the activist investors or the climate activists, and even government. Heck, they could buy out those sitting on the fence. They could even subsidize all manner of appliance, infrastructure, systems that entrench fossil fuels further. But they cannot ignore climate change; they cannot ignore the fact that we are not destroying earth with carbon emissions. We are destroying ourselves. And for what? Profits? What good are profits if that’s just creating a future no one wants to be part of?

Demand for energy is growing

We’ve been seeing on the news that 2023 will probably go down in history as the year oil majors backtracked on their promises towards the climate transition, and continued their trajectory of emissions as the demand for fossil fuels continue to grow.

This is exactly the kind of behaviour that makes it easy for people to keep painting them as the enemy. As a matter of fact, they risk painting themselves out of the low carbon future when they allow their “core” fossil fuel business to continue cannibalising their renewables business. Yes you heard me right; in refusing to see their core business as that of providing the world with sustainable energy, they are rapidly destroying a market they want to be part of.

Instead of seeing it as demand for fossil fuels, the oil majors need to recognise that there’s demand for energy – and it is growing. The opportunity to convert their customers to green users, energy users of the future rather than keeping them in the past. Their behaviour will at some point push the authorities to act even more aggressively against fossil fuels. The trouble right now is that they think the world needs them to go on spinning.

Story of methane

I thought of writing about methane. It is a curious molecule consisting of a single carbon atom surrounded by four hydrogen atoms around it which pretty strong bonds with the carbon atom. The entire molecule is relatively small and exists in gaseous form at room temperatures. It is naturally occurring and comes out of natural processes that involves anaerobic bacteria actions. It is a fuel that can be combusted to produce carbon dioxide and water vapour.

It also happens to be a greenhouse gas. Each methane molecule is thought to have 25 times more global warming potential than carbon dioxide. Natural gas is largely made up of it; hence it is a greenhouse gas by itself though combusting it will also produce carbon dioxide which itself is a greenhouse gas though with lower potential.

The focus on carbon emissions is a result of the recognition that we have spewed so much of this particular greenhouse into the atmosphere that it is having extreme effects on the global climate due to the warming potential. The world needs to move towards low-carbon and that means having activities that are emitting less carbon dioxide into the atmosphere. In general, fossil fuel based carbon holds the largest responsibility in anthropogenic carbon emissions.

Interestingly, you could produce methane through anaerobic biological process. And cows are known to release methane into the air because of the bacteria actions in their stomach. The dairy industry therefore becomes a rather larger emitter of greenhouse gas for this reason. That is where stuff gets a bit fuzzy when you’re counting global warming potential, anthropogenic emissions and so on.

So biomethane is the methane produced through anaerobic digestion of organic matter can be captured and used as a fuel. When combusted it likewise produces carbon dioxide and water. But this carbon dioxide belongs to the short carbon cycle due to its organic/plant heritage and hence is excused from what typical constitutes carbon emissions. Yet when biomethane leaks or is released into the air, the methane’s global warming potential is counted and the carbon-equivalent emissions actually forms part of the emissions from processes whenever biomethane is used. This ‘short cycle’ argument doesn’t seem to apply.

This may not seem very consistent and can potentially create a lot of confusion around the truly ‘green’ identity of biomethane. One could see how biomethane, or renewable natural gas as it is known in the US, is going to suffer from being conflated with fossil fuel natural gas.

New site for Mondo Gondo

For those who know, I started a podcast late last year named Mondo Gondo and finished a single season with six episodes and have not revived the podcast since. This was largely because I got busy with my work that involved a bit of relocation early this year. I still intend to keep Mondo Gondo going and have recently invested into centralising all my web content into my self-hosted platform.

Therefore, Mondo Gondo’s website had a facelift. It is much simpler now with less heavy graphics. It continues to hold only the show notes for the podcast and the intention is to eventually get back to creating another season, featuring rants, thoughts and ideas around sustainability, incentives and how we could make the world a better place.

I have some ideas around more in-depth topics on energy, discussing whether hydrogen should be used in residential applications, considering if AirBnB can potentially make tourism and hospitality more eco-friendly, thinking about how we need new models of thinking about infrastructure in order to drive more sustainable development, reconsidering the role of urban centers and more.

It might still be a while more but watch the new site for season 2.

Cheap renewables and surging bills

Even as we see the levellised cost of solar coming down, and increasing penetration of renewable energy, the electricity coming to us in our grids are increasing in prices. At least it seems to be so in Australia. There’s a lot of cost associated with the transmission and distribution infrastructure that needs to be recovered – partly because the growth of intermittent renewables mean that the grid infrastructure will have to be expanded.

But it is not just that; there’s also more padding required in the margins of electricity retailers because the intermittency results in even more volatile electricity prices in the wholesale market. That means that if the retailers are still providing fixed price tariffs and long contracts to customers, they will have to manage their risks by putting higher profit margins into the retail packages.

There is a huge price to pay by the society to eventually enjoy more renewable energy. If we don’t adapt to the intermittency through more adding more flexible generation leveraging on demand response and integrating EV recharging networks into the network operation optimisation (ie. Vehicle-to-Grid systems), we can only expect higher bills. We had better accelerate the transition or we’re soon losing the patience of energy consumers.

Making the contribution

For first time in history but it’s already been a while, the world collectively seem to have abundance. The total amount of food produced could feed the entire world one and a half times over. If energy is used efficiently and excesses trimmed, the entire world should have decent amount of power to live normal modern lives. Of course that depends on what you mean by normal but I’m covering the same point that there’s enough in the world but the problem is distribution.

And distribution is not just a physical problem of course. Distribution can be an economic problem in itself. The fact that the market doesn’t really care that much about the distribution of resources, buying power / puchasing power is actually a problem. It skews the global economy towards what the people with means needs rather than producing for the best outcomes of the world. And this is perhaps why energy continues to be skewed towards the developed, high energy consumption countries or markets.

So making a contribution to this world isn’t really about production. If the world continues in the same fashion tomorrow, you can really make a greater impact on someone’s life – from an incremental perspective – by improving the distribution in the system. By bringing access to higher quality energy, better nutrition, bringing critical and vital knowledge to the communities which can use them properly. That sort of contribution is of unparalleled value. Probably not the kind of contribution involving helping companies break into new markets or keeping fossil fuel businesses alive to emit more carbon.

Bridge to the future

Having been based in Australia for two months now and getting a better view of the overall energy landscape, I’d say that the greatest hurdle we need to overcome is developing an alignment in commitment, plans and action to bring bioenergy especially biomethane into the system energy mix in order to decarbonise.

We are trying to build a bridge to the low-carbon energy future. And there has been many announcement, efforts and plans around hydrogen hubs, hydrogen parks. In the year 2023, the prices of electrolysers didn’t seem to come down all that much as expected, renewable electricity in the form of wind and solar, while being cheap, is bringing about a degree of intermittency that challenges grid operations to the extent that overall cost of electricity or at least access to electricity remains high. As it turns out, we were building the bridge from the destination towards us when we were working on the hydrogen projects. They were good, at some point in the future but it seems that they are not being built fast enough to reach us today. We are still unable to adopt those solutions.

This means that as the decarbonisation targets and emission reduction dreams comes back to bite us, we need to start building the bridge from our side. And biomethane is a great solution that allows us to do that. It displaces natural gas on a one-to-one basis and does not require end-users of natural gas to change their appliances. Biomethane can be spec-ed properly in the biogas upgrading process in order to achieve the quality required for gas grid injection. Moreover, the production of biogas (precursor to biomethane) can be done in conjunction with managing our organic and agricultural wastes which were either being burnt, composted openly or sent to the landfill – all of which involves some kind of carbon emission (albeit short-cycle to a certain extent) that does not achieve extra work done. And don’t get me started on the potential of biogenic carbon dioxide as a future market to build.

Lots of clear work and action. Once we get the perception right and eliminate the misinformation around bioenergy in Australia.