The laws of fluid mechanics imply that modular offshore pumped hydro-energy storage systems like StEnSEA have no advantage over similar but much cheaper onshore systems.

The turbine floor of the main plant is an important part in underground pumped storage hydropower plants.The health personnel and safe operation equipment are endangered due to high space humidity water seepage through walls. In this paper, numerical simulations were used study thermal environment summer. Two working conditions with without dissipation computed compared. psychrometric chart was...

Hydropower is the largest renewable source of electricity generation, carbon emissions which have attracted a lot attention. However, system boundaries existing studies are either incomplete or inaccurate. Therefore, this study provides systems accounting framework for evaluating both direct and indirect from hydropower plant. It based on hybrid method as combination process analysis input-outp...

Hybrid hydro energy systems are usually analysed with pumped storage systems, which can facilitate accumulation from other sources. Despite the lack of water storage, run-of-the-river hydropower plants also attractive for hybrid owing to their low investment cost, short construction time, and small environmental impact. In this study, a system that contains power (SHPs), PV batteries serve loca...

The unit commitment prob lem in a power generation system com prising thermal and pumped storage hy dro units is addressed A large scale mixed integer optimization model for unit commitment in a real power system is de veloped and solved by primal and dual ap proaches Both solution methods employ state of the art algorithms and software Results of test runs are reported

In this paper we present an algorithm, inspired by the cyclic coordinate descent method, which allows the resolution of hydrothermal optimization problems involving pumped-storage plants. The proof of the convergence of the succession generated by the algorithm was based on the use of an appropriate adaptation of Zangwill’s global theorem of convergence.

We consider the problem of the optimization of the functioning of a pumped-storage hydroplant. The problem can be mathematically formulated as an optimal control problem, and when the considered hydromodel is of the fixed-head type, an added complication arises: the solution is of the bangsingular-bang type. In this paper, we propose a simple and efficient optimization algorithm to find the sol...