Solar and wind capacity in the Association of Southeast Asian Nations (ASEAN) region increased by 20% in 2023, bringing the total to more than 28 gigawatts (GW).
The technologies now make up 9% of electricity generating capacity in ASEAN countries – Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, the Philippines, Singapore, Thailand and Vietnam – according to a new report from Global Energy Monitor (GEM).
Combined with a large base of hydropower, the growth in wind and solar takes the bloc close to its renewable energy capacity target of 35% by 2025, GEM says.
Building an additional 17GW of utility-scale solar and wind projects in the next two years – those that feed power directly into the electricity grid – would be sufficient to reach the goal, it adds.
In fact, it says the region is on track to sail past its target, nearly doubling wind and solar capacity in the next two years by adding a further 23GW of new projects
An even larger 220GW pipeline of new utility-scale wind and solar capacity has been announced, or entered pre-construction or construction stages, according to GEM’s analysis, though only 6GW of this is currently being built.
However, ASEAN countries collectively have one of the fastest-growing economies in the world and have seen very rapid recent electricity demand growth of 22% per year between 2015 and 2021. This has translated into continued support for gas and coal power in the region, even though demand growth is expected to slow.
While renewables have the potential to temper the growth in fossil fuel demand, wind and solar expansion face regulatory hurdles and a lack of supportive policy, GEM adds.
Success so far
ASEAN added 3GW of solar capacity in 2023, increasing installed capacity by 17% over 2022 levels, according to GEM’s report.
Despite solar seeing a larger overall capacity increase, operational wind capacity saw a larger comparative rise, growing by 29%, or 2GW, since January 2023.
Offshore wind now accounts for 2GW of the operating 9GW of utility-scale wind capacity in the region.
Given the technical challenges and associated higher costs of offshore wind, this is particularly noteworthy, GEM states.
Vietnam has by far the most utility-scale solar and wind capacity of all the ASEAN nations, as seen in the chart below.
The increase in utility-scale solar and wind capacity over the past year has come as a result of a supportive policy environment across many countries in the ASEAN region, says GEM.
In 2017, Vietnam deployed a series of investment policies designed to bring utility scale-solar projects into operation, for example. Two feed-in-tariff (FiT) programs were deployed by the country’s state-owned utility between 2017 and 2020.
However, when these programs expired, Vietnam failed to administer a replacement, GEM says. As such, despite the nation adding 12GW of utility-scale solar capacity between 2019 and 2021, gaps in energy policy have started to limit progress.
Just 1GW of utility-scale solar and wind was commissioned in Vietnam in 2022, in comparison with nearly 4GW in 2021.
Thailand and the Philippines currently have the second and third highest utility-scale solar and wind capacity in the region, with 3GW of operating capacity each.
Thailand is the second largest economy in ASEAN after Indonesia and has benefitted from being seen as a “low-risk country”, notes GEM, with few barriers for investment.
The Philippines, meanwhile, hosts a “streamlined project bidding system”, which allows for an “unencumbered pipeline of project development”, GEM says. Currently, around three-quarters of its operational utility-scale solar and wind capacity comes from solar.
Future growth
There is currently a total of 222GW of announced, pre-construction and construction-stage utility-scale wind and solar capacity in ASEAN countries, according to GEM’s research.
More than 185GW of this pipeline of projects is in the Philippines and Vietnam, meaning they account for more than 80% of prospective capacity in the region. This is shown in the figure below.
More than 60% of the pipeline in Vietnam and the Philippines comes from planned offshore wind development, GEM says, of 72GW and 52GW respectively.
The Philippines is responsible for 45% of prospective capacity in ASEAN countries. Its Green Energy Auction Program (GEAP) aims to facilitate the development of more than 11GW of renewable energy.
In March 2023, it held an auction securing just over 300 bids to develop 3GW of solar, onshore wind and bioenergy with 2024–2026 start dates.
This capacity fell short of the level targeted, but represented a 75% increase on the amount secured in 2022’s auction, notes GEM.
Offshore wind comprises 52% of the Philippines’ prospective utility-scale renewable capacity, with five times more offshore wind than onshore.
In April 2023, the nation issued an executive order, outlining cooperation between private investors and the government on offshore wind. Since then, offshore wind contracts have more than doubled to nearly 80, representing 61GW of capacity, GEM notes.
Vietnam has more than 86GW of prospective capacity, including 72GW of offshore wind. However, just 2% is currently being built, due in part to the country’s “lack of concise and reliable renewable energy policies that could serve as a crucial roadmap for project implementation”, states GEM.
A further 40GW of utility-scale solar and wind projects in Vietnam are considered by GEM to be “shelved”, because they have seen no progression or announcements in the past two years.
Vietnam is working on a just energy transition partnership (JETP) with a group of developed countries. It also released its latest national electricity development plan for 2021–2030, also known as the power development plan 8 (PDP8).
The alignment of these policies and funding schemes is still in development, and therefore their impact cannot yet be determined, notes GEM.
Laos is aiming to “punch above its economic weight” in the development of utility-scale solar and wind capacity, GEM says. At more than 3GW, its prospective capacity rivals that of Thailand, despite the country’s economy being only 2% of the size.
Laos’ prospective utility-scale solar and wind capacity surpasses that of Malaysia by more than 150%, despite having an economy that is more than thirty times smaller. This ambition is being driven by financial collaboration with ASEAN partners, according to GEM.
Laos is set to house the region’s largest onshore windfarm. Monsoon windfarm is currently under construction and expected to have a capacity of 600 megawatts (MW) when complete.
Despite this large pipeline of ASEAN wind and solar projects, however, only 6.3GW (3%) is currently under construction, notes GEM.
Reaching renewable ambitions
The target for renewables to make up 35% of electricity generating capacity by 2025 is “easily attainable and ultimately unambitious for ASEAN”, according to GEM.
Renewables already make up 32% of electricity capacity in ASEAN countries, GEM says, meaning the 35% target can be met easily.
Moreover, while annual growth in electricity consumption is expected to slow from the annual 22% since 2014 to just 3% a year out to 2030, GEM says rising demand will continue to drive expansion in fossil fuel power infrastructure in the region.
Hitting the 35% target would only require ASEAN countries to commission 17GW of new renewable capacity by 2025, GEM says, of which 6.3GW is already under construction.
Yet there is in excess of 220GW of prospective utility-scale solar and wind in development, with a total of 23GW set to be operational by 2025.
This means the region is on track to beat its target and nearly double its installed wind and solar capacity in just two years, according to GEM, with scope to go even further and reduce the need for fossil fuel expansion.
For now, fossil fuels remain entrenched in the region, restricting new investment in utility-scale wind and solar, GEM states.
Gas and coal each account for approximately 30% of ASEAN countries’ total installed capacity, and coal-fired power capacity has seen an annual growth rate of 7% since 2017.
With electricity demand growth currently outpacing the rollout of renewable energy capacity, gas and coal are expected to continue to grow in coming years, GEM says.
National energy policies have touted the use of gas as a “stepping stone” in the energy transition and ASEAN countries are likely to be net importers of gas by 2025.
Insufficient grid infrastructure investment is also a “persistent hurdle” for integrating utility-scale solar and wind, notes GEM.
As such, while there is a clear effort being made to ramp up renewable energy, this continues to be complicated by a buildout of fossil fuels and low solar and wind construction rates, concludes GEM. The report adds:
“By doubling down on bringing as much of the 220GW of prospective utility-scale solar and wind projects into fruition, ASEAN countries will be poised to not only meet regional renewable energy targets, but pave the way to transition from fossil fuels.”
The post Wind and solar capacity in south-east Asia climbs 20% in just one year, report finds appeared first on Carbon Brief.
Wind and solar capacity in south-east Asia climbs 20% in just one year, report finds
Drought and heatwaves occurring together – known as “compound” events – have “surged” across the world since the early 2000s, a new study shows.
Compound drought and heat events (CDHEs) can have devastating effects, creating the ideal conditions for intense wildfires, such as Australia’s “Black Summer” of 2019-20 where bushfires burned 24m hectares and killed 33 people.
The research, published in Science Advances, finds that the increase in CDHEs is predominantly being driven by events that start with a heatwave.
The global area affected by such “heatwave-led” compound events has more than doubled between 1980-2001 and 2002-23, the study says.
The rapid increase in these events over the last 23 years cannot be explained solely by global warming, the authors note.
Since the late 1990s, feedbacks between the land and the atmosphere have become stronger, making heatwaves more likely to trigger drought conditions, they explain.
One of the study authors tells Carbon Brief that societies must pay greater attention to compound events, which can “cause severe impacts on ecosystems, agriculture and society”.
Compound events
CDHEs are extreme weather events where drought and heatwave conditions occur simultaneously – or shortly after each other – in the same region.
These events are often triggered by large-scale weather patterns, such as “blocking” highs, which can produce “prolonged” hot and dry conditions, according to the study.
Prof Sang-Wook Yeh is one of the study authors and a professor at the Ewha Womans University in South Korea. He tells Carbon Brief:
“When heatwaves and droughts occur together, the two hazards reinforce each other through land-atmosphere interactions. This amplifies surface heating and soil moisture deficits, making compound events more intense and damaging than single hazards.”
CDHEs can begin with either a heatwave or a drought.
The sequence of these extremes is important, the study says, as they have different drivers and impacts.
For example, in a CDHE where the heatwave was the precursor, increased direct sunshine causes more moisture loss from soils and plants, leading to a drought.
Conversely, in an event where the drought was the precursor, the lack of soil moisture means that less of the sun’s energy goes into evaporation and more goes into warming the Earth’s surface. This produces favourable conditions for heatwaves.
The study shows that the majority of CDHEs globally start out as a drought.
In recent years, there has been increasing focus on these events due to the devastating impact they have on agriculture, ecosystems and public health.
In Russia in the summer of 2010, a compound drought-heatwave event – and the associated wildfires – caused the death of nearly 55,000 people, the study notes.
The record-breaking Pacific north-west “heat dome” in 2021 triggered extreme drought conditions that caused “significant declines” in wheat yields, as well as in barley, canola and fruit production in British Columbia and Alberta, Canada, says the study.
Increasing events
To assess how CDHEs are changing, the researchers use daily reanalysis data to identify droughts and heatwaves events. (Reanalysis data combines past observations with climate models to create a historical climate record.) Then, using an algorithm, they analyse how these events overlap in both time and space.
The study covers the period from 1980 to 2023 and the world’s land surface, excluding polar regions where CDHEs are rare.
The research finds that the area of land affected by CDHEs has “increased substantially” since the early 2000s.
Heatwave-led events have been the main contributor to this increase, the study says, with their spatial extent rising 110% between 1980-2001 and 2002-23, compared to a 59% increase for drought-led events.
The map below shows the global distribution of CDHEs over 1980-2023. The charts show the percentage of the land surface affected by a heatwave-led CDHE (red) or a drought-led CDHE (yellow) in a given year (left) and relative increase in each CDHE type (right).
The study finds that CDHEs have occurred most frequently in northern South America, the southern US, eastern Europe, central Africa and south Asia.
Threshold passed
The authors explain that the increase in heatwave-led CDHEs is related to rising global temperatures, but that this does not tell the whole story.
In the earlier 22-year period of 1980-2001, the study finds that the spatial extent of heatwave-led CDHEs rises by 1.6% per 1C of global temperature rise. For the more-recent period of 2022-23, this increases “nearly eightfold” to 13.1%.
The change suggests that the rapid increase in the heatwave-led CDHEs occurred after the global average temperature “surpasse[d] a certain temperature threshold”, the paper says.
This threshold is an absolute global average temperature of 14.3C, the authors estimate (based on an 11-year average), which the world passed around the year 2000.
Investigating the recent surge in heatwave-leading CDHEs further, the researchers find a “regime shift” in land-atmosphere dynamics “toward a persistently intensified state after the late 1990s”.
In other words, the way that drier soils drive higher surface temperatures, and vice versa, is becoming stronger, resulting in more heatwave-led compound events.
Daily data
The research has some advantages over other previous studies, Yeh says. For instance, the new work uses daily estimations of CDHEs, compared to monthly data used in past research. This is “important for capturing the detailed occurrence” of these events, says Yeh.
He adds that another advantage of their study is that it distinguishes the sequence of droughts and heatwaves, which allows them to “better understand the differences” in the characteristics of CDHEs.
Dr Meryem Tanarhte is a climate scientist at the University Hassan II in Morocco, and Dr Ruth Cerezo Mota is a climatologist and a researcher at the National Autonomous University of Mexico. Both scientists, who were not involved in the study, agree that the daily estimations give a clearer picture of how CDHEs are changing.
Cerezo-Mota adds that another major contribution of the study is its global focus. She tells Carbon Brief that in some regions, such as Mexico and Africa, there is a lack of studies on CDHEs:
“Not because the events do not occur, but perhaps because [these regions] do not have all the data or the expertise to do so.”
However, she notes that the reanalysis data used by the study does have limitations with how it represents rainfall in some parts of the world.
Compound impacts
The study notes that if CDHEs continue to intensify – particularly events where heatwaves are the precursors – they could drive declining crop productivity, increased wildfire frequency and severe public health crises.
These impacts could be “much more rapid and severe as global warming continues”, Yeh tells Carbon Brief.
Tanarhte notes that these events can be forecasted up to 10 days ahead in many regions. Furthermore, she says, the strongest impacts can be prevented “through preparedness and adaptation”, including through “water management for agriculture, heatwave mitigation measures and wildfire mitigation”.
The study recommends reassessing current risk management strategies for these compound events. It also suggests incorporating the sequences of drought and heatwaves into compound event analysis frameworks “to enhance climate risk management”.
Cerezo-Mota says that it is clear that the world needs to be prepared for the increased occurrence of these events. She tells Carbon Brief:
“These [risk assessments and strategies] need to be carried out at the local level to understand the complexities of each region.”
The post Heatwaves driving recent ‘surge’ in compound drought and heat extremes appeared first on Carbon Brief.
Heatwaves driving recent ‘surge’ in compound drought and heat extremes
Greenhouse Gases
DeBriefed 6 March 2026: Iran energy crisis | China climate plan | Bristol’s ‘pioneering’ wind turbine
Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.
This week
Energy crisis
ENERGY SPIKE: US-Israeli attacks on Iran and subsequent counterattacks across the Middle East have sent energy prices “soaring”, according to Reuters. The newswire reported that the region “accounts for just under a third of global oil production and almost a fifth of gas”. The Guardian noted that shipping traffic through the strait of Hormuz, which normally ferries 20% of the world’s oil, “all but ground to a halt”. The Financial Times reported that attacks by Iran on Middle East energy facilities – notably in Qatar – triggered the “biggest rise in gas prices since Russia’s full-scale invasion of Ukraine”.
‘RISK’ AND ‘BENEFITS’: Bloomberg reported on increases in diesel prices in Europe and the US, speculating that rising fuel costs could be “a risk for president Donald Trump”. US gas producers are “poised to benefit from the big disruption in global supply”, according to CNBC. Indian government sources told the Economic Times that Russia is prepared to “fulfil India’s energy demands”. China Daily quoted experts who said “China’s energy security remains fundamentally unshaken”, thanks to “emergency stockpiles and a wide array of import channels”.
‘ESSENTIAL’ RENEWABLES: Energy analysts said governments should cut their fossil-fuel reliance by investing in renewables, “rather than just seeking non-Gulf oil and gas suppliers”, reported Climate Home News. This message was echoed by UK business secretary Peter Kyle, who said “doubling down on renewables” was “essential” amid “regional instability”, according to the Daily Telegraph.
China’s climate plan
PEAK COAL?: China has set out its next “five-year plan” at the annual “two sessions” meeting of the National People’s Congress, including its climate strategy out to 2030, according to the Hong Kong-based South China Morning Post. The plan called for China to cut its carbon emissions per unit of gross domestic product (GDP) by 17% from 2026 to 2030, which “may allow for continued increase in emissions given the rate of GDP growth”, reported Reuters. The newswire added that the plan also had targets to reach peak coal in the next five years and replace 30m tonnes per year of coal with renewables.
ACTIVE YET PRUDENT: Bloomberg described the new plan as “cautious”, stating that it “frustrat[es] hopes for tighter policy that would drive the nation to peak carbon emissions well before president Xi Jinping’s 2030 deadline”. Carbon Brief has just published an in-depth analysis of the plan. China Daily reported that the strategy “highlights measures to promote the climate targets of peaking carbon dioxide emissions before 2030”, which China said it would work towards “actively yet prudently”.
Around the world
- EU RULES: The European Commission has proposed new “made in Europe” rules to support domestic low-carbon industries, “against fierce competition from China”, reported Agence France-Presse. Carbon Brief examined what it means for climate efforts.
- RECORD HEAT: The US National Oceanic and Atmospheric Administration has said there is a 50-60% chance that the El Niño weather pattern could return this year, amplifying the effect of global warming and potentially driving temperatures to “record highs”, according to Euronews.
- FLAGSHIP FUND: The African Development Bank’s “flagship clean energy fund” plans to more than double its financing to $2.5bn for African renewables over the next two years, reported the Associated Press.
- NO WITHDRAWAL: Vanuatu has defied US efforts to force the Pacific-island nation to drop a UN draft resolution calling on the world to implement a landmark International Court of Justice (ICJ) ruling on climate, according to the Guardian.
98
The number of nations that submitted their national reports on tackling nature loss to the UN on time – just half of the 196 countries that are part of the UN biodiversity treaty – according to analysis by Carbon Brief.
Latest climate research
- Sea levels are already “much higher than assumed” in most assessments of the threat posed by sea-level rise, due to “inadequate” modelling assumptions | Nature
- Accelerating human-caused global warming could see the Paris Agreement’s 1.5C limit crossed before 2030 | Geophysical Research Letters covered by Carbon Brief
- Future “super El Niño events” could “significantly lower” solar power generation due to a reduction in solar irradiance in key regions, such as California and east China | Communications Earth & Environment
(For more, see Carbon Brief’s in-depth daily summaries of the top climate news stories on Monday, Tuesday, Wednesday, Thursday and Friday.)
Captured
UK greenhouse gas emissions in 2025 fell to 54% below 1990 levels, the baseline year for its legally binding climate goals, according to new Carbon Brief analysis. Over the same period, data from the World Bank shows that the UK’s economy has expanded by 95%, meaning that emissions have been decoupling from growth.
Spotlight
Bristol’s ‘pioneering’ community wind turbine
Following the recent launch of the UK government’s local power plan, Carbon Brief visits one of the country’s community-energy success stories.
The Lawrence Weston housing estate is set apart from the main city of Bristol, wedged between the tree-lined grounds of a stately home and a sprawl of warehouses and waste incinerators. It is one of the most deprived areas in the city.
Yet, just across the M5 motorway stands a structure that has brought the spoils of the energy transition directly to this historically forgotten estate – a 4.2 megawatt (MW) wind turbine.
The turbine is owned by local charity Ambition Lawrence Weston and all the profits from its electricity sales – around £100,000 a year – go to the community. In the UK’s local power plan, it was singled out by energy secretary Ed Miliband as a “pioneering” project.
‘Sustainable income’
On a recent visit to the estate by Carbon Brief, Ambition Lawrence Weston’s development manager, Mark Pepper, rattled off the story behind the wind turbine.
In 2012, Pe