At the core of all of our energy storage solutions is our modular, scalable ThermalBattery™ technology, a solid-state, high temperature thermal energy storage.
Integrating with customer application and individual processes on site, the ThermalBattery™ plugs into stand-alone systems using thermal oil or steam as heat-transfer fluid to charge and discharge green energy on demand.
Standardized modular thermal energy storage technology Our standardized ThermalBatteryTM modules are designed to be handled and shipped as standard 20ft ISO shipping containers. A 20ft module can store up to 1.5 MWh, a 40ft module up to 3 MWh. Depending on customer demand, storage from 5 to >1000MWh can be inputted.
(1) To charge the ThermalBatteryTM , hot heat transfer fluid (HTF) directly flows through embedded steel pipes from top to bottom, transferring thermal energy to the HEATCRETE®, its core storage material.
(3) During discharge the flow is reversed; cold heat transfer fluid (HTF) flows in at the bottom and exits hot, supplying energy from the top of the ThermalBatteryTM.
With water/steam as HTF the ThermalBatteryTM acts as a steam cooler and condenser in charge mode, and as a boiler and superheater in discharge mode, using the same principles of steam generators installed in conventional- and solar thermal power plants.
The payback from cutting your carbon footprint with ENERGYNEST solutions is remarkably fast – with an estimated time of 2 months based on current calculations.
That means your decarbonization strategy could soon start paying for itself – or generate even more value
From casting to site: easy transportation via truck or train due to standardized container format
Future-ready thermal oil systems are at the heart of our power, solar and waste heat storing solutions.
In these systems, thermal oil is used to transfer thermal energy from a sink to the ThermalBatteryTM, before supplying it back to a sink when needed. When charging, hot thermal oil is pumped from heat sources such as electric heaters, heat exchangers or solar fields by a pump skid, moving through the steel pipes of the ThermalBatteryTM from top to bottom. This transfers thermal energy to the storage material.
On discharge, the flow of the fluid is reversed. Constant outlet temperature can be provided in both charge and discharge via integrated piping bypass systems with control valves. To balance changes in volume, the system includes an expansion vessel. The type of thermal oil is tailored to the specific needs of the system and customer requirements. The Thermal-Oil-BOP-package including piping, pumps, valves and expansion vessel is usually delivered as ready to install skid.
Steam systems are at the heart of our steam storage solutions.
During charging, high pressure steam from source (steam grid, turbine or boiler) flows into the system where it condenses in the ThermalBatteryTM modules while transferring the heat to the storage material. The condensate is collected in a pressure vessel.
During discharge to a medium- or low-pressure sink (turbine, steam grid or production process), the pressure and the corresponding saturation temperature decrease below the temperature of the storage-material, which starts the evaporation process in both the modules and the vessel (flashing). A control valve on top of the vessel controls this dual evaporation process to ensure a stable supply of dry saturated or slightly superheated steam. If required, the evaporation system can be connected in series with a superheater ThermalBatteryTM to provide high-temperature superheated steam.
Saturated or superheated steam can be provided with constant, stepped or sliding pressure and temperature.
The Steam-BOP-package including piping, valves and pressure-vessel can be delivered as ready to install skid.
From production to site assembly: preparation of the steel cassettes before casting and final assembly of the finished modules at YARA's site in Porsgrunn, Norway