Yara
Manufacturing
Chemical
Norway
2020
Partnering with the fertilizer producer Yara International, ENERGYNEST is proud to be integrating a 4 MWh ThermalBattery™, directly connecting to the steam grid at their production facility at Porsgrunn in Norway.
This renewable storage system will provide increased flexibility to the plant by balancing local steam production and reducing the amount of dumped excess steam.
A ENERGYNEST steam-based ThermalBattery™ system stores thermal energy by condensing high-pressure steam and subsequently generates low-pressure steam on demand. The purpose is to reduce dumping of excess steam by storing the energy and instantly releasing it during short duration cyclic peak demand in the low-pressure steam grid.
The system increases energy efficiency and provides flexibility; two key features for industrial installations in their transition towards a sustainable energy future. The ThermalBattery™ can balance renewable electricity (converted to heat), recover industrial surplus heat and feed various industrial processes that require steam. It can also operate with other thermal fluids such as thermal oil.
The modular energy storage system is scalable and customizable for any application. The modules are composed of abundant, recyclable and non-hazardous geomaterials (steel and HEATCRETE®). Each module (47 tons) is the size of a standard 20-ft shipping container, making transportation and installation simple.
When the ThermalBattery™ system charges it is fed with high-pressure steam from the plant. The steam flows from top to bottom through the modules, in which it condenses, releasing its latent heat to the modules. The saturated condensate is stored in the pressure vessel.
When the ThermalBattery™ system discharges it feeds low-pressure steam back to the plant. This works by reversing the flow; the pressure vessel feeds the modules with condensate which evaporates inside the modules to steam, in parallel with partial flashing inside the vessel itself. This dual evaporation process is controlled by a set of control valves on top of the vessel.
Charging: 34 barg, de-superheated
Discharge: 5 barg, dry steam
Flow-rate: 1 – 5 tons/hr.
Capacity: 5 tons
Design lifetime: 200 000 hrs.
Charge/discharge cycles: 462 000
Design code: EN 13445 + PED directive 2014/68/EU Cat IV, Mod G
Replace your gas boiler with an intelligent integrated solution that combines the advantages of our modular ThermalBattery™ technology with complementary components such as electric heaters and, depending on the system configuration, optional steam generators or heat exchangers.
Together with LEONHARD KURZ, we are planning to implement the first power-to-heat system with thermal storage in Germany – in order to reduce emissions and promote the decarbonization of industry.
Extending production of solar energy beyond sunset at oil refinery of Eni S.p.A. in Gela. Italy.
In 2015, EnergyNest installed and commissioned our ThermalBattery pilot with combined capacity of 1 MWhth at the Masdar Institute Solar Platform (MISP) in UAE.
