Direct:
The DigiTimes thesis: Taiwan plans to launch a green power spot market as soon as Q4 2026 or early 2027 to better allocate intermittent renewable generation. The framing is unusual. The pressure isn't shortage, it's surplus. Some green power retailers are sitting on inventory they can't move because peak renewable output doesn't line up with when corporate buyers actually draw electricity.
That mismatch makes sense once you look at the players. TSMC (TSM) is one of Taiwan's largest single power consumers, with estimates ranging from roughly 5% historically to closer to 10% in recent reporting – more than the city of Taipei in either case. It signed onto RE100 in 2020, targets 60% renewables by 2030 and 100% by 2040, and has been locking in long-term offshore wind PPAs, including the latest 30-year Hai Long 2A deal with Northland Power for 294 MW. The Taiwan government is leaning hard on solar and offshore wind to keep that pipeline filled, with renewables climbing from under 10% of generation in 2023 to the low-teens in 2024 and policy targets still pushing sharply higher.
The market structure to absorb all this has been catching up unevenly. Taipower launched the Day-Ahead Ancillary Service market in 2021. RE30 (a “utility plus green power” blend product) launched June 2025 with a 3,000 GWh annual green supply target by 2027. CPPA volumes hit 2.49 TWh in trailing-12-months 2024, up roughly 30% year over year. But long-dated CPPAs don't create a transparent short-term price signal for intermittency. They can be shaped, sleeved, or financially structured around it, but none of that is the same thing as a liquid balancing market. A spot market is what closes that gap, the way day-ahead and intraday electricity markets work in Europe.
There's a parallel infrastructure issue worth noting. Taiwan already has 15-minute meter data, but T-RECs (Taiwan Renewable Energy Certificates) are still issued on monthly volumes. That mismatch is exactly the kind of thing a more liquid spot market plus sub-hourly certificate matching would expose. EnergyTag has been tracking Taiwan's slow walk toward time-matched certificates, and a spot market would be the missing piece.
The DigiTimes piece is paywalled beyond the lead so specific institutional design (clearing intervals, who can participate, T-REC integration) cannot be confirmed. The thesis itself is consistent with everything Taipower and the Bureau of Energy have telegraphed since the 2017 Electricity Act amendment, so should be treated as credible reporting on a policy that's been in the pipeline rather than a surprise.
The reason this is worth attention at all: Taiwan's fab buildout depends on solving the green power supply problem on the suppliers' timelines, not just TSMC's. Memory fabs (Nanya, Winbond, Macronix) operate under the same RE100-style scope-2 pressure from their downstream customers, just with less leverage to sign Northland Power deals directly. A functioning spot market gives smaller energy-intensive players a way in that doesn't require a 20-year PPA.
Sources
- DigiTimes, “Taiwan plans green power spot market to ease surplus renewable power by 2027” (May 14, 2026) — paywalled, lead only
- Northland Power / DataCenterDynamics on the 30-year Hai Long 2A PPA with TSMC, 294 MW (April 2026)
- EY Taiwan, “Learning from Europe: Accelerating the Development of Taiwan's Renewable Power Trading Market” (March 2025)
- MOEA / Taipower press materials on RE30 launch and 3,000 GWh 2027 target (June 2025)
- IEEE Spectrum, “TSMC's Clean-Energy Demand Drives Taiwan's Geopolitical Future” (Nov 2024)
- PwC Taiwan, Global and Taiwan Electricity and Renewable Energy Market 2024
- EnergyTag, on Taiwan's T-REC and sub-hourly matching trajectory (2025)
- Taipower power generation overview / annual mix data
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