Methods and systems for green energy charging of electrical vehicles

A method of powering an electric vehicle (EV) charging service, the method comprising:

• providing as input to a microgrid controller of a microgrid, a plurality of input energy sources selected from grid source;
• a battery;
• and one or more renewable energy sources;
• providing as output by the microgrid controller:
• the battery, and the EV charging service;
• directing output power with the microgrid controller at selected times from the grid source, and the one or more renewable energy sources to the battery for charging the battery;
• directing output power with the microgrid controller at selected times to the EV charging service by a blend of the one or more renewable energy sources, the battery, and the grid source;
• and
• determining with a dynamic storage module of the microgrid controller when and from which of the plurality of input energy sources is used to power the EV charging service using as input an EV predictor module based on EV charging load patterns, and historical EV arrival patterns to consume energy from a cheapest source possible of the plurality of input energy sources;
• and
• wherein a renewable source of energy predictor module based on one or more of a location-based historical model, local weather prediction, short-term historical production data, historical geographic records, local climatic conditions, seasonal adjustments, and site specific performance history;
• a system behavior module based on one or more of a historical effectiveness of storage at a given site for a given system sizing;
• site load patterns;
• and EV charging load patterns;
• and
• a cost function module providing values representing a time-based cost of buying electricity and of selling, storage and retrieval for the input energy sources.