"Interested challengers have until August 31 to submit their expressions of interest. The pre-bid conference is scheduled on September 1, while the bid submission deadline is set on October 5," the power utility firm announced. The unsolicited bid lodged by Solar Philippines Batangas Baseload Corporation (SPBBC) had been anchored on a levelized cost of electricity (LCOE) and headline rate of P4.65 per kilowatt hour (kWh) and it will be for a capacity factor of 100-percent with a round-the-clock electricity supply to Meralco. Based on its targeted frame of development, SPBBC supply baseload power would come from its 1,800 megawatts (MW) of solar farm plus 1,800-megawatt hour (MWh) of battery storage to be sited in the provinces of Batangas, Cavite and Laguna. The SPBBC offer also said that it may need to procure back-up power from other plants to be able to guarantee continuous electricity supply to Meralco.