Ocean alkalinity system and method for capturing atmospheric carbon dioxide

A computer-implemented method for operating an electrochemical ocean alkalinity enhancement (OAE) system that is configured to capture atmospheric carbon dioxide and mitigate acidification of seawater by generating and supplying an ocean alkalinity product to seawater, the ocean alkalinity product including a salt solution containing a fully dissolved base substance, the method comprising:

• monitoring an availability of low/zero-carbon electricity and identifying first time periods during which sufficient low/zero-carbon electricity is available to operably power a base-generating device, the base-generating device being part of the OAE system and being configured to generate the ocean alkalinity product;
• monitoring one or more operational safety signals and identifying second time periods during which the operational safety signals indicate that the base-generating device is operably configured to safely generate the ocean alkalinity product;
• monitoring one or more ocean chemistry signals and identifying third time periods during which supplying the ocean alkalinity product to seawater will not endanger sea life;
• and
• controlling operations performed by the base-generating device such that the base-generating device supplies the ocean alkalinity product to the seawater only during a fourth time period, wherein the fourth time period comprises concurrent portions of all of the first, second and third time periods.