If you follow news about hydrogen, Singapore energy planning often comes up in the same breath. That can seem odd for a small island with no rivers for hydropower, limited land for solar farms and weak, variable wind. Yet that is exactly why hydrogen, and its chemical cousin ammonia, feature so prominently in the country’s long-term thinking about how to keep the lights on while cutting carbon emissions.
This guide explains why low-carbon hydrogen and ammonia are on the table, the hurdles that remain, and what it means for households. It focuses on fuels Singapore might burn at home, not on importing clean electricity through cables.
Why Singapore Is Looking Beyond Natural Gas
Today, most of Singapore’s electricity is generated by burning natural gas, piped in from the region or shipped in as liquefied natural gas (LNG). Natural gas is cleaner than coal or oil, but it still releases carbon dioxide. Singapore has committed to reaching net zero emissions by 2050, so the power sector has to change.
The Energy Market Authority (EMA), which oversees the electricity and gas sectors, has described several “switches” for the future energy mix:
- Natural gas, used more efficiently in the meantime
- Solar, on rooftops, reservoirs and other available spaces
- Regional power grids, bringing in low-carbon electricity from abroad
- Low-carbon alternatives, including hydrogen and ammonia, plus carbon capture
Solar alone cannot meet demand on so little land, and imports raise supply security questions. A fuel that can be shipped in, stored, and burned in power plants similar to today’s offers something the other options cannot: firm, round-the-clock power that does not depend on the weather. That is the role hydrogen is hoped to play.
What Low-Carbon Hydrogen Actually Means
Hydrogen does not release carbon dioxide when burned. The catch is how it is made: most hydrogen today comes from natural gas or coal, which creates emissions at the factory instead. The industry uses rough labels:
- Grey hydrogen: made from fossil fuels with the carbon released
- Blue hydrogen: made from fossil fuels, with much of the carbon captured and stored
- Green hydrogen: made by splitting water using renewable electricity
Singapore’s interest is in low-carbon hydrogen, meaning hydrogen whose full life cycle, from production to shipping, has genuinely low emissions. Because the country cannot produce large amounts of renewable power locally, the expectation is that most low-carbon hydrogen would be made overseas, in places with abundant sun or wind, and then shipped here.
Why Ammonia Keeps Coming Up
Hydrogen is the lightest element. Moving it across oceans is hard: it must be cooled to extremely low temperatures to become liquid, or compressed at high pressure, and it leaks easily. This is where ammonia comes in.
Ammonia is made of nitrogen and hydrogen. It turns liquid at far milder conditions than hydrogen, and the world already ships large amounts of it for fertiliser, so tankers, terminals and safety practices exist. Ammonia can be used in two ways:
- Burned directly as a fuel in suitably designed power plants or ship engines
- “Cracked” back into hydrogen at the destination, then used as hydrogen
For Singapore, ammonia also links two industries. The country is one of the world’s biggest ship refuelling (bunkering) ports, and shipping lines are exploring ammonia as a cleaner marine fuel. EMA and the Maritime and Port Authority of Singapore (MPA) have worked with industry on a project to develop low or zero-carbon ammonia for both power generation and bunkering on Jurong Island, the industrial island in the south-west. Pairing the two uses can help justify the import terminals and storage needed.
Here is how the main carriers compare:
| Carrier | Strength | Main challenge |
|---|---|---|
| Liquefied hydrogen | Pure hydrogen on arrival, no conversion needed | Needs extreme cooling; energy lost in liquefying and boil-off |
| Ammonia | Easier to ship and store; existing global trade and tankers | Toxic if released; burning it can create nitrogen oxides that need control |
| Liquid organic hydrogen carriers | Can use conventional oil-style tanks and handling | Releasing the hydrogen takes energy; technology still maturing |
| Synthetic methane | Could use existing gas pipelines and plants | Needs a captured carbon source; overall efficiency is lower |
How Hydrogen Fits Into Singapore’s Plans
Singapore published a National Hydrogen Strategy in 2022, setting out hydrogen as a potential major decarbonisation pathway for power and, to a degree, for industry and transport. Official statements have suggested hydrogen could eventually supply a significant share of the country’s power needs by 2050, though this depends heavily on how costs and technology develop. Check the EMA and Ministry of Trade and Industry websites for the latest framing, as targets and wording are updated.
The strategy broadly covers:
- Trialling advanced hydrogen technologies to see what works at scale, including ammonia-fired power
- Investing in research and development, through bodies such as the Agency for Science, Technology and Research (A*STAR) and local universities
- International partnerships and supply chains, since most supply would come from overseas
- Land and infrastructure planning, for terminals, storage and pipelines
A practical step is making sure new power plants are ready for the change. EMA has set requirements for new and repowered gas-fired generation units to be hydrogen-ready, meaning they can burn a blend of hydrogen with natural gas and be converted to run on higher hydrogen shares later. That avoids building plants today that would become stranded assets tomorrow.
The Hurdles Still in the Way
Hydrogen is promising, but it is not a done deal. The challenges are real and widely acknowledged:
- Cost: Low-carbon hydrogen and ammonia are currently much more expensive than natural gas. Prices need to fall a lot before they make sense at scale.
- Energy losses: Every step, from making hydrogen to converting it into ammonia, shipping it and cracking or burning it, loses energy. The more conversions, the less efficient the chain.
- Safety: Hydrogen is highly flammable and leaks easily; ammonia is toxic. Both demand strict engineering standards, which Singapore’s regulators will need to set and enforce.
- Emissions accounting: Hydrogen is only “low-carbon” if its production really is. Certification across borders is still being worked out internationally.
Because of these uncertainties, Singapore treats hydrogen as one option in a portfolio rather than a single bet.
What It Means for Households
For most residents, the shift will happen quietly at large power stations, and electricity would still arrive through the same grid. A few things are worth understanding:
- Electricity prices reflect fuel costs. New, cleaner fuels may cost more at first, and how that is passed through depends on policy and market conditions. The carbon tax, administered by the National Environment Agency and IRAS, is part of the price signal pushing industry to decarbonise.
- Energy efficiency still matters most at home. The cheapest, cleanest kilowatt-hour is the one you do not use. Efficient air-conditioners, fridges and lighting help regardless of what fuel powers the grid.
- Transport is a separate story. Hydrogen cars and buses have been trialled in some countries, but Singapore’s road transport plans lean heavily on electric vehicles. Our piece on the future of transport in Singapore covers that side.
- Jobs and skills: A hydrogen economy would need engineers, safety specialists, chemists and technicians. If you are thinking about a career pivot, see our guide to building in-demand skills for the future.
Following the Story Over the Coming Years
The real milestones are concrete: a terminal approved, a plant converted, a supply deal signed or a safety standard published. When you read hydrogen news, ask whether it is a study, a trial or a commercial project, and whether the fuel is verifiably low-carbon. For authoritative updates, the Energy Market Authority, the Ministry of Trade and Industry and the National Climate Change Secretariat publish strategy documents and announcements. Plans in this space change as technology and costs shift, so treat any specific target as a snapshot rather than a promise.
Hydrogen will not single-handedly solve Singapore’s energy puzzle, but it is one of the few options that could provide clean, reliable power at scale. That is why it keeps appearing in the plans.
Frequently Asked Questions
Will hydrogen power make my electricity bill go up? It could push costs up at first, since low-carbon hydrogen and ammonia are currently pricier than natural gas. How much reaches households depends on policy, technology and fuel markets. Using less electricity at home is the most dependable way to protect your bill, whatever fuel the grid uses.
Is ammonia dangerous for people living near Jurong Island? Ammonia is toxic if released, so it needs strict engineering standards, trained handling and emergency planning. The world already ships it for fertiliser, which means safety practices exist. Any Singapore project would have to meet regulators’ requirements, so look to official agencies for the safety conditions attached to approved terminals.
Is hydrogen better than electric vehicles for Singapore roads? For cars and buses, Singapore’s plans lean much more towards electric vehicles. Hydrogen cars have been trialled in some countries, but making and moving hydrogen loses energy at each step. Hydrogen looks more promising for power plants and shipping fuel than for the family car.
Can homes in Singapore use hydrogen for cooking or heating? Not in the foreseeable future based on current plans. The focus is on large power stations, industry and shipping, with homes still receiving electricity through the existing grid. Household appliances would need different equipment and safety rules, so there is no sign of a household hydrogen switch.
When will hydrogen actually start powering Singapore? There is no firm date, because it depends on falling costs, safety standards and secure overseas supply. Official statements point to hydrogen playing a larger role by 2050, with trials and hydrogen-ready power plants coming first. Check the Energy Market Authority for the latest milestones.
Official sources: Energy Market Authority
Further reading: Nuclear Energy and Singapore: What Is Being Studied