Recently, I noticed a pretty interesting phenomenon—those power stocks that have always been considered "steady earners but not likely to explode" suddenly became market favorites. The reason behind this is actually quite simple: the rise of AI and data centers has directly pushed global electricity demand to an unprecedented level.

Imagine training large models like GPT-4, which consumes as much electricity as several thousand households in a year. Currently, hundreds of millions of people worldwide use ChatGPT, Midjourney daily, and the data centers behind these services must operate 24/7. Tech giants like Microsoft, Google, Meta, and Amazon have publicly announced significant increases in AI data center investments, directly boosting the market for the entire power grid concept stocks.

According to the International Energy Agency’s forecast, by 2030, global data center electricity consumption will more than double from now, reaching about 945 TWh, a figure that already slightly exceeds Japan’s total electricity consumption. Moreover, this is just a baseline estimate; AI-specific data centers are expected to grow their electricity use by over four times, which is truly astonishing.

To meet this surge in demand, countries are building new power plants and upgrading old grids. Taiwan has the "Resilient Power Grid Plan," with Taipower planning to invest over 500 billion TWD over ten years. The U.S. has the Inflation Reduction Act, which offers massive subsidies to promote grid modernization. These policies directly drive demand for core equipment like transformers, GIS switches, and distribution panels, making power grid concept stocks the most immediate beneficiaries.

Taiwan’s four major heavy electrical equipment companies are worth paying close attention to. Hwa Sheng, as a leading transformer technology company, has the only production line in Taiwan capable of manufacturing 500kV ultra-high voltage transformers and has successfully entered the Texas power grid market. Chung Hsin Electric is Taiwan’s sole producer of GIS, with about 85% market share in Taipower’s market, almost a monopoly. Sung Dong, as an established electrical machinery giant, has a broad product line, with deployments from large domestic projects to Southeast Asia and the Middle East. A-Li focuses on distribution panels, with clients including TSMC, UMC, and other semiconductor giants, with orders booked through 2027.

The reason these companies are attractive is mainly because power grid concept stocks have a natural industry moat. The technical barriers for ultra-high voltage equipment are high, certification periods are long, and the market is far from fully competitive. Leading manufacturers can maintain long-term profitability. Plus, the demand driven by AI is global and ongoing, unlike short-term themes that may fade quickly.

However, I must also be honest that the valuations of these stocks already reflect many expectations. Price-to-earnings ratios generally range from 20 to over 30 times, or even higher. If growth momentum doesn’t meet expectations, stock prices could face significant correction. Additionally, rising raw material costs, labor shortages, and supply chain delays could impact gross margins and shipment schedules.

So, my personal view is that the long-term logic of power grid concept stocks is sound, but short-term risks are not negligible. A more pragmatic approach is to buy in stages or use dollar-cost averaging, gradually accumulating during price pullbacks rather than chasing highs all at once. Also, it’s important to monitor whether monthly revenues continue to grow year-over-year, whether gross profit margins and operating margins remain healthy, and whether inventories and accounts receivable are reasonable. These financial indicators can help assess whether the company is truly converting revenue growth into real profits.

In addition to Taiwan’s heavy electrical stocks, U.S. utility companies and upstream supply chain firms are also worth watching. Companies like NextEra Energy and Duke Energy face global demand, with operations across various regions, effectively diversifying regional risks. Firms like Eaton and Quanta Services, which produce electrical equipment and infrastructure, may have more volatility than utilities but also present many opportunities amid this wave of global grid upgrades.

Overall, the surge in electricity demand driven by AI is fueling a structural industry transformation. Power grid concept stocks are moving from the periphery to the center stage, and this trend is expected to continue over the next 3 to 5 years or even longer cycles. But when investing, it’s crucial to stay rational—avoid being blinded by short-term gains, adopt a long-term perspective, and use moderate swing trading strategies for stability.