Our Innovative Massive Energy Storage Solution
The transition to an electricity production dominated by renewables is undeniably beneficial for the environment, but it poses significant technical and economic challenges.
This transformation should entail improved energy efficiency and the widespread deployment of variable renewable energy sources. It necessitates enhanced flexibility, defined as the ability of the energy system to adapt to the ever-changing demands and fluctuations in supply across all timescales. Maintaining a precise balance between electricity consumption and generation is essential for grid stability.
This intermittent generation requires solutions in storing excess energy, adjusting flexible loads, and discharging stored energy to match demand.
Massive grid-scale storage is the cornerstone of this transition.
Storabelle aims to modernize decommissioned coal power plants into a massive renewable and low-carbon energy storage system: replacing the boiler with an electric charging system and a molten salt thermal storage system, along with a steam generator, connected to the existing discharge system.
A Unique Solution
Storabelle technology pioneers a groundbreaking approach to revolutionize traditional power plants.
Storabelle retrofits thermal power plants by integrating modular Molten Salt Reservoirs. These reservoirs efficiently produce steam, reutilizing existing steam turbines and power conversion systems.
What sets Storabelle apart is its innovative use of renewable electricity to heat the molten salt modules during periods of high production. This ingenious method not only optimizes renewable energy use but also ensures cost-effectiveness. Moreover, Storabelle’s reservoirs make substantial contributions to primary and secondary reserves, enhancing grid security and stability.
In essence, Storabelle represents a transformative technology, seamlessly blending renewable energy solutions with existing infrastructure for a sustainable and resilient energy future.
This innovative approach not only facilitates extensive energy storage but also employs high-inertia generators, ensuring the stability of the grid frequency. Its ability to efficiently store vast amounts of energy, coupled with its grid stability features, makes it an unparalleled solution in the field
Our Technology
Storabelle upgrades coal plants reaching decommissioning phase as large CARNOT batteries. Storabelle replaces the coal boiler with an Electric Heater (EH) and a molten salt Thermal Energy Storage System (TESS) connected to the Steam Water Cycle of the old plant through a Steam Generator System (SGS). The SGS uses the thermal energy from the hot molten salt to produce superheated steam and generate electricity via the existing Steam Turbine and Generator infrastructure.
Molten salts serve as a phase change material widely employed for thermal energy storage. Solid at room temperature, they transition into a liquid state when exposed to thermal energy. In various energy storage systems, these salts remain in a liquid form throughout the process. Comprising 60% sodium nitrate and 40% potassium nitrate, they melt at approximately 220°C. Molten salts find significant application in concentrating solar power (CSP) plants, where excess heat not utilized for electricity generation is directed to the salts and stored in insulated tanks. This stored thermal energy proves invaluable after sunset, driving steam production and electricity generation, compensating for the absence of direct solar energy.
