Thermochemical Renewable Energy Storage

A thermochemical energy storage system comprising:

• a vessel including an inlet and an outlet;
• a reactive bed located within the vessel, the reactive bed comprising magnesium-manganese oxide particles with a peripheral diameter of 100 μm-8 mm allowing gas flow therethrough between the openings of the vessel;
• ceramic electrodes contacting against the reactive material and being configured to withstand a temperature of at least 1500° C.;
• the electrodes being configured to conduct electricity through the magnesium-manganese oxide material which heats the reactive magnesium-manganese oxide material.

A thermochemical energy storage system comprising:

• a vessel including an inlet and an outlet;
• a reactive bed located within the vessel;
• electrodes contacting against and conducting electricity through the reactive bed;
• at least one blower moving a gas through the reactive bed;
• a turbine actuated by the gas, which is heated, flowing from the outlet of the vessel;
• a generator creating electricity in response to actuation of the turbine;
• a bypass line connected to the vessel;
• and
• a control valve associated with the bypass line configured to vary fluid flow therethrough;
• the reactive bed being configured to release oxygen upon being heated to a reduction temperature, and generate heat when exposed to oxygen.

A thermochemical energy storage system comprising:

• a porous and packed bed comprising a reactive magnesium-based material;
• electrodes having the reactive material disposed therebetween, the electrodes comprising a ceramic material;
• the electrodes heat the reactive bed by resistive heating while conducting electricity through the reactive material;
• the reactive material being reusable for at least one thousand reduction energy storage and heating cycles without degradation in performance;
• the electrodes being configured to withstand a temperature of at least 1500° C.;
• and
• at least one blower configured to blow air through the reactive material;
• the reactive material being configured to release oxygen and store energy upon being heated to a reduction temperature, and generate heat when exposed to oxygen.