Enhancing Power Grid Efficiency at Hitachi through Advanced Operational Research

Hitachi, a global leader in power grid management, sought to improve how it balances electricity supply and demand across its extensive network. With a growing reliance on renewable energy sources and the complexity of managing multiple power plants, the company faced significant operational challenges. To enhance efficiency and reliability, Hitachi turned to advanced optimisation techniques to modernise its grid management processes.

The Problem

Managing a power grid involves numerous interconnected challenges, from deciding when to activate power plants (unit commitment) to optimising the flow of electricity and planning future infrastructure expansions. The integration of renewable sources such as wind and solar further complicates operations due to their variable nature. As demand for cleaner energy increased, relying on manual or outdated custom algorithms became inefficient, error-prone, and unable to meet evolving grid requirements.

The Solution

To address these issues, Hitachi incorporated AMPL Optimization Inc.’s advanced software into its existing GridView system. This powerful tool enabled the development of sophisticated and adaptable optimisation models that could handle the complex needs of modern grid scenarios. The new system allowed for quicker, more precise decision-making while integrating seamlessly with existing infrastructure.

The Value 

The shift to advanced optimisation delivered substantial benefits. Grid adjustments that previously took hours now require only ten minutes, vastly improving responsiveness. Operational costs have been reduced through smarter resource allocation, while enhanced use of renewable energy supports sustainability goals by lowering emissions. Ultimately, the system has improved stability, reduced the risk of blackouts, and positioned Hitachi’s grid operations for a more efficient and environmentally responsible future.