# HD Hyundai Heavy Industries to expand engine production capacity

HD Hyundai Heavy Industries announced plans to invest 833.6 billion won to expand production capacity for medium-sized power generation engines: 3 GW per year at a new Ulsan plant and 1 GW per year at the Mokpo plant. Total Himsen Engine capacity is expected to reach 7.2 GW by 2028.

- Type: Expansion
- Announced: 2026-09-10
- Where: Ulsan and Mokpo, South Korea
- Value: $624.0M (833.6B KRW)
- Starts operating: May 2028
- Status: announced
- Capacity: 7.2 GW total (3.2 GW marine, 4 GW onshore power generation)
- Products: medium-speed power generation engines, Himsen engines
- Sectors: [Power Generation Equipment](https://endata.com/sectors/power-generation-equipment.md)

## Companies

- [HD Hyundai Heavy Industries](https://endata.com/companies/12220.md)
- [Hyundai Marine Engine](https://endata.com/companies/94121.md)

## Sources

- [en.edaily.co.kr](https://en.edaily.co.kr/news/eda202609115076/), 2026-09-11: "Himsen Engine’s total production capacity is expected to expand to 7.2 GW by 2028 (3.2 GW for marine engines and 4 GW for onshore power generation)."
- [newsway.co.kr](https://www.newsway.co.kr/news/view?ud=2026091107523086238), 2026-09-11: "HD현대중공업은 지난 10일 8336억원을 들여 울산 울주군 온산읍에 연간 3GW 규모의 '힘센(HiMSEN)엔진' 생산기지를 구축한다고 밝혔다."
- [en.edaily.co.kr](https://en.edaily.co.kr/news/eda202609115064/), 2026-09-11: "HD HYUNDAI HEAVY INDUSTRIES announced plans the previous day to expand production capacity for onshore power generation engines (including those for data centers) by 3.3 gigawatts (GW) and for marine power generation engines by 0.9 GW."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.