Energy Storage System Design in the Light of Multisource Solution from a Viability Analysis

Abstract

The objective of this work is to analyze the economic viability of a replacement to the energy supplied by the grid during costly periods by infrastructure owned by the consumer. The study takes into account the costs to purchase, manage and operate the structure to set which option an affordable option. A statistical approach based on the Monte Carlo Method distributes the costs through a 25 lifecycle period, establishing the cash flow and the economic parameters for each energy source combination scenario. The scenarios are evaluated for a Brazilian consumer, and the current regulatory parameters and market values are deployed to study the viability for a Diesel Generator, and two different types of batteries as replacements during the most energy-costly periods. As a result, the work establishes the most affordable scenarios from a technical and economic approach. Batteries are still costly for the consumer, and a 48.3% reduction in the costs may enable the deployment of batteries as an alternative in the country. The results establish that multi-source energy set with a Diesel Generator is an economically viable possibility during peak hours.