Southeast Asia (SEA) is a region of rapid demographic growth, economic leapfrogging and urbanisation. However, the region currently sits at a critical crossroads. Home to more than 670 million people, the progress does come with a caveat: a heightened exposure to climate risks that pose great threats to future progress.
The rising sea levels pose a risk to low-lying areas across Jakarta to Manila. In the same breath, the increasingly volatile monsoon patterns bring threats of destructive floods and droughts.
Further damage can be seen in Vietnam’s Mekong Delta as saltwater intrusion jeopardises millions of farmers’ livelihoods. Urban centres like Bangkok and Ho Chi Minh City, on the other hand, struggle with increasing energy demands, waste management hurdles and worsening air quality.
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For the region, climate change is no longer a distant possibility but a looming crisis that poses grave threats, leading to the disruption of economies and societies. Climate technology has emerged as a crucial tool to build resilience and further accelerate decarbonisation, yet the question lies in whether the region can scale these innovations fast enough to meet its environmental and economic pressures.
Key sectors driving investments
A report by Bain & Company stated that green investment in SEA’s six largest economies rose by 43% year-on-year, amounting to around US$8 billion in 2024, with renewable energy, waste management and mobility leading the race. This flow of investments suggests that momentum is building in key climate tech sectors.
Solar and wind projects are rapidly advancing as renewable energy and energy storage take centre stage. However, intermittency is still a major hurdle. This makes energy storage systems critical for grid stability. Singapore, for example, has started deploying large-scale battery plants to manage variability and integrate solar/imported low-carbon supply, while startups pilot decentralised storage solutions as well as battery-swapping services for electric vehicles (EVs).
Carbon capture, utilisation and storage (CCUS) is another booming sector. Whilst still costly, projects continue to advance. Singapore’s S-Hub consortium, with backing from global energy giants such as ExxonMobil and Shell, aims to capture 2.5 million tonnes of CO₂ per year by 2030. Other smaller startups are working to develop carbon accounting and verification technologies to strengthen the integrity of new carbon markets.
The agriculture sector is currently witnessing a wave of climate resilience innovation. From technologies like AI-driven precision farming in Vietnam to sensor-enabled irrigation in Indonesia, startups are working towards reducing input waste, improving yields and protecting farmers against climate-related risks.
In tandem, water management technologies are becoming more critical than ever as island nations and rural communities where droughts and salinity intrusion threaten freshwater supplies. New technologies such as solar-powered desalination and atmospheric water generation systems are beginning to appear as possible solutions to the pressing challenges.
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Within the robust environments, startups are leveraging the ecosystem to illustrate the promise of climate tech within SEA. For instance, Indonesia’s Fairatmos successfully developed a platform that connects organisations seeking carbon offsets with the developers of forest restoration projects, which unlocks the country’s vast natural capital for climate mitigation.
Singapore’s Zuno Carbon leads the race by creating AI-powered software that helps companies map and minimise emissions across supply chains to align with rising environment, social and governance (ESG) disclosure requirements.
Electric mobility is also another area that is slowly gaining traction. Oyika, a Singapore-based startup, offers a battery-as-a-service model for motorbikes that tackles cost and convenience challenges to EV adoption in a region that is largely dominated by two-wheelers. Meanwhile, SunGreenH2 is championing innovation in using electrolysis to reduce the cost of green hydrogen for industrial usage.
Neighbouring countries such as Vietnam are also gaining ground with their startup ecosystems. In February, Techcoop managed to secure US$70 million in funding to further expand its agritech platform, which integrates climate insurance, digital payments and cooperative services for smaller farmers.
In Eastern Indonesia, Kuan Timor Teknologi is offering solar-powered clean water systems for its rural communities, tailoring innovations to address both environmental and social challenges.
These startups are underscoring one critical point: the region is not just adopting imported solutions; they are developing resilient climate technologies that are suited to its own megacities, agrarian economies, as well as dispersed island geographies.
Challenges and barriers to scaling greater heights
Despite progress, scaling the region’s climate tech remains a daunting challenge. Capital intensity remains a major roadblock. Solutions such as grid-scale batteries and carbon capture infrastructures require big investments that come with a long payback period.
Furthermore, regulatory uncertainty poses a hurdle as each country has its own rules that govern energy markets, carbon pricing, as well as land use. Carbon markets in particular remain inconsistent as questions around verification and integrity undermine credibility. This, coupled with the lack of talent pool, limits both innovation and scale-up capacity and capabilities. For an industry that requires highly specialised expertise in science and engineering, these issues create uncertainty, which undermines the confidence of future investors, slowing down the region’s growth as a burgeoning hub for climate tech innovation.
A narrow, yet critical window of opportunity
Southeast Asia, as a region, has undeniably reached its climate tech inflexion point. The convergence of climate risks, investor interest, the maturity of startups and policy commitments offers an interesting opportunity to transform its economies and societies.
However, relying on momentum alone will not be sufficient to scale climate innovation. It requires collective systemic change that encompasses harmonised regulation, strong financial mechanisms, robust infrastructure and a skilled workforce.
If the region seizes the moment, it can not only build resilience against climate change but also secure a competitive edge in the global green economy.
If it fails, it risks being locked into dependency on imported solutions while bearing the brunt of escalating climate impacts. The next few years will determine which path Southeast Asia takes on whether it can turn urgency into advantage in the race against climate change.