Utilizing solid-state chemicals for the distributed generation and storage of hydrogen from renewable energy to manage power and heat supply

A method for distributed storage and supply of hydrogen gas as a renewable fuel source, comprising:

• a. Synthesizing sodium borohydride (NaBH4) externally and transporting it to the site location for hydrogen production;
• b. Storing the sodium borohydride at the site location for short-term or long-term periods;
• c. Extracting hydrogen gas from the stored sodium borohydride at the utilization site by reacting it with water in the presence of a catalyst, producing sodium metaborate as a byproduct;
• d. Processing the hydrogen gas by compressing it and removing any remaining moisture prior to its utilization;
• and
• e. Regenerating sodium borohydride from sodium metaborate using electrochemical means powered by renewable energy.

A method for distributed or decentralized storage and supply of hydrogen gas as a renewable fuel source, comprising:

• a. Producing a solid chemical, such as sodium borohydride or another metal borohydride, that effectively stores hydrogen using excess renewable energy;
• b. Storing the solid chemical for future utilization, with a storage period ranging from short-term to long-term;
• c. Extracting hydrogen gas from the stored solid chemical at a utilization site by reacting the sodium borohydride mass with water in the presence of a catalyst, producing sodium metaborate as a byproduct;
• d. Processing the hydrogen gas by compressing it and removing any remaining moisture prior to its utilization;
• and
• e. Regenerating sodium borohydride from sodium metaborate using electrochemical means, preferably utilizing renewable energy for the regeneration process.