A 53-year-old Taiwanese steelmaker has finished a big battery storage project, good news for chipmakers who need steady power and a sign traditional industry is putting real money into energy.

• Kuan Tien Steel spent NT$4.5 billion on a large grid-scale battery site in Tainan, now running commercially.
• The system holds enough power for 20,000 to 30,000 homes for a day and will feed the Southern Taiwan Science Park.
• Fast charging and discharging helps smooth sudden swings in supply and demand, steadying the local grid.
• It is the biggest single investment in the company's history, built with Delta's cooling, battery and energy management technology.

Outlook: Expect more old-line Taiwanese manufacturers to move into energy storage as chip plants keep driving up power demand.