Method for implementing power delivery transaction for potential electrical output of integrated renewable energy source and energy storage system facility

A method for implementing a power delivery transaction between a buyer and seller for potential electrical energy output of an integrated renewable energy source and energy storage system (RES-ESS) facility that includes a renewable energy source (RES) and an energy storage system (ESS), the method comprising:

• periodically estimating total potential electrical energy output of the RES during at least one retrospective time window utilizing a signal indicative of one or more sensed parameters;
• comparing the estimated total potential electrical energy output of the RES to a point of grid interconnect (POGI) limit for the RES-ESS facility to identify potential RES overgeneration during the at least one retrospective time window, wherein potential RES overgeneration equals potential RES electrical energy output in excess of the POGI limit during the at least one retrospective time window;
• identifying an amount of charged potential RES overgeneration, calculated as potential RES overgeneration charged to the ESS during the at least one retrospective time window;
• and
• charging the buyer for undelivered electrical energy if charged potential RES overgeneration is less than potential RES overgeneration during one or more time windows of the at least one retrospective time window.