Laos is Southeast Asia’s renewable energy success story. Across the Mekong River, a major river system running through much of Southeast Asia, Laos has built 80 hydropower dams. It exports this clean energy to neighbouring countries such as Thailand, Cambodia, Vietnam, and Singapore. Due to its generation capacity, the country has branded itself the Battery of Southeast Asia. At climate forums, Laos gets cited as evidence that poor, resource-rich countries can leapfrog fossil fuels entirely, and that regional energy cooperation and coordination is a feasible climate solution rather than a diplomatic aspiration. On paper, Laos is doing exactly what the global energy transition asks of it.

However, Laos runs on coal.

While Laos’s dams export clean energy to its wealthier neighbours, coal’s share of Laos’s domestic electricity generation rose from zero percent in 2014 to above 40 percent by 2019. Its CO2 emissions grew five times between 2015 and 2019 than during the previous 50 years combined. Today, Laotian citizens, earning, on average, less than $80 a month, pay some of the highest electricity rates in the Southeast Asian region. Despite this overcharging, Laotian's still endure regular outages, and watch as their government accumulates energy project-financing debt to Chinese dam financiers which exceeds Laos’ total GDP. Villages situated in western provinces, near the Hongsa lignite plant which burns approximately 15 million tons of coal per year, directly experience the negative health consequences: elevated rates of respiratory illness, contaminated water sources, and crop damage from acid rain have been documented in surrounding communities. The reason for all of this is quite straightforward: more than two-thirds of Laos’s hydropower energy is contractually committed to other nations. The clean energy is exported. The coal stays.

This isn’t due to corruption or gross mismanagement, though both have been present in some capacity. This is a story about what happens when the architecture of international climate accounting engages with a use case it wasn’t designed to handle. Rather than failing visibly, it produces a result which looks like a success.

The flaw is very specific. Current popular carbon accounting systems, including the Nationally Determined Contributions system (NDCs) underpinning the Paris agreement, assign emissions to the country in which the energy is generated and renewable energy credits to the country where it is consumed. This is extremely intuitive for closed energy systems, wherein energy is produced and consumed in a single domestic economy. However, the system fails when applied to a country as uniquely positioned as Laos, which generates both forms of energy simultaneously. Laos builds the dams with Chinese financing, displaces its own citizens and communities (tens of thousands of which have been forcibly relocated from riverside villages with little compensation), degrades the Mekong River's ecosystem by disrupting sediment flows, causing fish populations to collapse that millions depend on for food security, and ships the resulting clean energy to neighbouring countries such as Thailand. Meanwhile, Thailand logs the hydropower as a renewable energy achievement, allowing it to claim renewable energy credits, while Laos, unable to afford enough of its own dam output to meet domestic energy demand, must rely on and self-report coal as its energy source. This aspect to carbon accounting systems can grossly misrepresent energy production agreements between countries, oftentimes inverting them. The clean energy consumers benefit environmentally and receive credit towards their NDCs, while the producers get nothing but carbon.

For decades, climate researchers have been developing the concept of carbon leakage, the phenomenon where emissions-intensive production is relocated from regulated to unregulated jurisdictions, allowing the regulating country to claim reductions it has simply outsourced. This outsourcing idea has been well documented with respect to industrial goods, including steel, cement, and aluminium. The EU noticed this problem and implemented the Carbon Border Adjustment Mechanism to address it, a tariff on carbon-intensive imports that ensures foreign producers face the same carbon costs as European ones, preventing wealthy countries from outsourcing their emissions by simply buying cheaper, dirtier goods from abroad. But what’s happening in Laos is something that the climate literature has not yet named, and that the policy world has not yet tried to fix: we can call it renewable leakage. The mechanism works as follows: a wealthy country wants clean energy. Rather than build the infrastructure required to produce it domestically, it finances infrastructure construction in a poorer neighbouring country. They then lock the poorer country into long-term power purchase agreements, and begin to import the resulting clean energy created, allowing it to contribute to their renewable targets. The poorer country, now in debt and contractually constrained, cannot retain enough of its own clean energy for domestic use. It then turns to traditional fossil fuels such as coal to fill its energy deficit. The wealthy country's carbon dashboard turns greener, while the poorer country’s becomes dirtier. No fraud has occurred. No rule was broken. The current accounting system simply records the energy transactions from the consumer’s perspective, ignoring the producer’s. The credits and clean energy generated from these projects flow to the nation that paid for them. The ecological costs, displacement of residents, debt, and reliance on dirty energy accumulate in the nation that built the infrastructure and actually produced the energy.  This isn’t an edge case or an implementation failure. It is what the current accounting architecture encourages within cross-border renewable energy trading between unequal partners.

This isn’t a problem unique to Laos. The International Energy Agency (IEA) projects that to meet global clean energy goals, massive renewable infrastructure investment in developing countries will be necessary, with electricity being increasingly traded across borders. Efforts to build regional power grids, establish cross-border renewable energy agreements, and create green hydrogen export corridors from the Global South to Europe all point to a shared question, one that the case of Laos has already answered. When energy is produced in one country and consumed in another, who gets climate credit, who absorbs the ecological costs, and who risks burning fossil fuels to run their own country? Using Laos as a case study, following the flow of money leads us to an answer. The countries capable of financing infrastructure will reap the renewable energy benefits. The countries with exploitable rivers and debt desperation provide the conditions for implementation.

There is a standard argument often used to defend these arrangements: “Laos chose to develop hydropower, attracted the financing it needed, and is ultimately a sovereign government responsible for its own energy decisions.” This defense is not entirely wrong. But it assumes a degree of freedom that Laos’s financial position, landlocked geography, and financial contracts do not actually permit. Laos was forced to turn to dirty energy because the hydropower it produced was already spoken for before the domestic grid had a chance to use it. This choice was made upstream, in detailed financing agreements and power purchasing contracts, by the countries and institutions that now count Laotian hydropower toward their green targets, all at Laos’ expense.

The entire architecture of international climate commitments assumes a nation’s energy profile reflects its energy choices. NDCs are national documents. Renewable energy targets are national targets. Carbon dashboards measure national emissions. But energy infrastructure in the developing world is increasingly financed, owned, and contractually controlled by foreign actors, and the carbon accounting system has no mechanism for distributing responsibility appropriately. It measures where the electricity is consumed, not the debt that built it.

As cross-border clean energy trade scales globally, the Laos model will not remain an anomaly. It will become a template. Green hydrogen produced in Namibia for European import; solar electricity generated in Morocco for Spanish consumption; geothermal power from Indonesia for Singapore’s data centers. Each of these arrangements carries the same latent structure: infrastructure built in a poorer country, with benefits flowing to a richer one, and a carbon accounting system that calls the whole transaction clean. The question is not whether cross-border renewable trade is bad: in principle, it is not. The question is whether the frameworks governing it can distinguish between a genuine energy transition and renewable leakage. A workable accounting reform needs to assign renewable credit not to where electricity is consumed, but to where the ecological costs, debt, and renewable displacement were borne. Right now, no such framework exists.

The battery of Southeast Asia is real. The coal powering it is also real. The accounting system that lets everyone pretend otherwise is the problem, and it is about to get much bigger.