The new T-Point 2 replaces the iconic T-Point in order to enable more robust turbine validiations, notably the 1650℃-class JAC model and 1700℃-class ultrahigh-temperature models. MHPS claims the T-Point 2, like its predecessor, “stands apart as the only facility in the world that performs full-scale long-term reliability verification for gas turbines.”
Synced to the Japanese power grid, it is the only plant of its type in the world to function as both a technology demonstrator and an electric power producer and supplier. Also housed within Takasago Works are centers for R&D, design, manufacturing, and short-term component testing.
Commercial start in July 2020
Once commercial operations begin in July 2020, T-Point 2 is expected to achieve power output of over 566 MW at 60Hz, with nearly 64% efficiency, 99.5% reliability and a world-first turbine inlet temperature of 1650℃ – raising industry standards for gas turbine combined cycle performance globally. This improved performance is possible due to the upgraded J-Series Air-Cooled (JAC) model, the first gas turbine being validated at T-Point 2.
The new facility features a triple-casing steam turbine, augmenting overall system efficiency through a multiplier effect with the JAC gas turbine. This greater efficiency reduces carbon emissions and heat loss.
“The prototype validation system established by MHPS has given our customers the clear assurance that they are receiving the highest caliber and most reliable energy solutions in the market,” said Junichiro Masada, Senior General Manager of Gas Turbine Technology & Products Integration Division, MHPS.
Going forward, MHPS will use the facility to conduct validation of the next-generation 1700℃-class ultrahigh-temperature gas turbines, steam turbine upgrades, air-cooled condenser technology, generators, and static frequency converters.
Installing AI at T-Point 2
Work is underway to install and train advanced artificial intelligence (AI) technology at T-Point 2, such as the MHPS-TOMONI suite of digital solutions. During the 8,000 hour durability demonstration period, MHPS will also be training its AI apps, allowing T-Point 2 to eventually become the world’s first autonomous combined cycle power plant.
The aim is to fully integrate AI into plant operations, allowing plant owners to leverage data to optimize performance, enable condition-based predictive maintenance for equipment, selectively automate operation and maintenance (O&M) decision-making, and reduce risk.
With these building blocks, MHPS will remotely monitor and manage total plant performance; remotely operate the plant in coordination with grid and fleet-wide energy management objectives; and utilize sensor and control system data to make smarter operation decisions in real time.