Singapore’s renewable energy share hits record high

Singapore’s energy transition strategy has long been shaped less by public commitments than by systems logic: minimal land, high energy reliability standards, and an open economy deeply reliant on gas-fired electricity. The latest data from the National Electricity Market of Singapore (NEMS), however, suggests a tactical shift may be underway—though not yet a structural one.

In May, renewable energy’s share of Singapore’s power mix rose to a record 2.58%. Domestic solar generation expanded at its fastest pace in over a year, and clean energy imports hit a two-year high. Over the first five months of 2025, Singapore brought in more than 122 million kilowatt-hours of clean electricity—up from zero during the same period in 2024.

Yet even with these record-setting metrics, fossil fuels—primarily natural gas—still account for roughly 95% of generation capacity. The question is not whether the Republic is signaling change, but how far that signal travels within the broader capital and regulatory system.

On paper, Singapore’s target is ambitious: importing 6 gigawatts of low-carbon electricity by 2035, covering roughly a third of its projected demand. But system behavior to date has reflected caution. The actual share of imported clean power remains under 1%, and negotiations over key cross-border transmission protocols—particularly with Thailand—remain unresolved.

This divergence is not merely a lag in execution. It reflects the institutional posture Singapore has adopted toward power integration: adaptive but defensive, incremental rather than ideological. In October, Energy Market Authority (EMA) chief Puah Kok Keong stated that terms for extending the Lao PDR–Thailand–Malaysia–Singapore (LTMS) multilateral power trade were still pending, contingent on transmission charge clarity from Thai regulators.

The EMA’s June statement to Reuters—confirming that “discussions are ongoing” without disclosing further details—was notable not for what it said, but what it withheld. The signal to market participants was deliberate: alignment matters more than acceleration.

The LTMS initiative has long been framed as a demonstration of ASEAN power integration potential. But while it is technically viable, its political and regulatory scaffolding remains fragile. Transmission reliability, tariff consistency, and regulatory interoperability are preconditions—not footnotes—for scalable regional power trade.

Singapore’s limited land and lack of large-scale hydro or wind potential mean it must rely on cross-border flows for any meaningful energy diversification. But it is not willing to absorb the risk of mispriced volatility or contractual misalignment. In contrast to Gulf Cooperation Council (GCC) nations like the UAE—where capital deployment in solar and hydrogen infrastructure outpaces regulatory harmonization—Singapore’s approach remains regulation-first.

This friction isn’t unique to Southeast Asia. Even in the EU’s more mature integrated grid, divergent energy subsidies and price caps have caused persistent inefficiencies. Singapore’s hesitancy to lean harder into import reliance without a fully credible regional regime should be seen as institutional foresight—not inertia.

The data does show real movement. Clean power imports rose three consecutive months through May. Domestic solar ramped at its fastest pace since Q1 2024. Total electricity generation grew 0.4% over the first five months, yet clean sources gained a modest share—primarily at the expense of fossil generation.

But scale still matters. A 2.58% renewable share is not system-altering. The magnitude of the shift remains within Singapore’s risk tolerance zone—calculated enough to test procurement, pricing, and transmission reliability, but far from triggering systemic repricing of gas-linked infrastructure or long-term LNG contracts.

Investors and sovereign-linked funds monitoring Singapore’s power sector are unlikely to reweight portfolios based on early import data. Clean energy-linked REITs and infrastructure funds still model Singapore as a gas-heavy grid, with renewables providing marginal daytime peaking relief. Until transmission protocols are finalized and multilateral guarantees embedded into cross-border energy deals, Singapore’s capital posture will remain hedged.

What appears to be underperformance against decarbonization targets may instead reflect strategic restraint. EMA has long emphasized that grid stability and reliability trump headline capacity targets. With data centers driving much of the new demand load, and uptime expectations approaching Tier IV standards, even minor grid instability carries disproportionate economic cost.

Singapore’s decision to pilot, rather than proclaim, its energy import model keeps institutional risk low. The city-state avoids over-committing to infrastructure it does not fully control, while retaining optionality as ASEAN’s transmission regimes mature. In a region where political cycles and subsidy frameworks remain inconsistent, Singapore’s sequencing reflects a fundamental insight: in energy, trust is transmission.

The message embedded in Singapore’s latest energy data is not about momentum—it’s about constraint management. Clean power imports are rising. Solar capacity is scaling. But the system’s dominant posture remains gas-reliant by design.

This is not a misalignment of ambition, but a deliberate calibration of risk. The market may read the 2.58% renewable share as underwhelming. Institutional allocators, however, will recognize the deeper signal: Singapore is preparing for integration, not leading with it. What seems like slow uptake is, in fact, groundwork for long-term alignment.

In this context, clean energy is not yet a supply revolution. It is a confidence-building mechanism. And Singapore is playing a long game few others in the region are institutionally equipped to match.