Doosan Enerbility is a power plant manufacturer, headquartered in Korea, specializing in nuclear plant construction, gas plant construction, offshore wind, civil engineering and parts manufacturing. In this patent review, we assessed Doosan Enerbility gas turbine technology. We can de-risk its claims for a 43%-efficient simple-cycle turbine, 60%+ efficient CCGT, and 1,600ºC turbine inlet temperatures.
Doosan Enerbility has roots going back to 1896, is headquartered in Changwon, South Korea and is a major power plant builder. Its aspiration for 2025 is to generate $7.3bn of orders, including $3.3bn in nuclear plant construction and maintenance work, $2.3bn in gas division orders, $680M in offshore wind/fuel cells and $1bn in civil engineering, construction, casting and forging.
Doosan Enerbility gas turbine technology has been under development since at least 2011, when the company tested a 5MW proof-of-concept. Doosan has now launched its own 380MW H-class turbine. Doosan’s 380MW DGT6-300.S2 is said to achieve a simple-cycle efficiency of 43%, with a turbine inlet temperature around 1,600ºC, which is on par with units from GE Vernova and Siemens in our database of gas turbine parameters.
The company secured 5 gas turbine orders as of October-2024, said to have comprised 10% global market share in orders for H-class gas turbines, 67% domestic market share in Korea, and this is consistent with numbers in our own gas turbine market tracker. It has continued winning orders in 2025.
The purpose of this patent screen was to assess Doosan Enerbility’s gas turbine technology, based on reviewing a sample of its patents. The company has filed 340 patent families focused on “gas turbine” technology, mostly in 2021-24.
The patents we reviewed were generally high-quality, specific and intelligible. Some of the details found in the patents are summarized in the schematic below. Full details on the patents we reviewed are available in the data-file.
Compared to the gas turbine technology from Shanghai Electric, which we have also reviewed, Doosan’s patent filings seem to de-risk higher efficiency, although costs are likely higher as well.
Overall, we can imagine Asian turbine manufacturers – such as Doosan Enerbility and Shanghai Electric – competing for growth, especially in emerging world and developed Asian geographies, in our outlook for gas power consumption and our outlook for gas turbines.