The system check, the electricity bills and the amount of consumption by real time. The customer can choose the time slot (Cheapest electricity bill) and can use the electricity.

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• Generating system power source: replacing fossil fuels with renewable energy (solar, wind, wave etc.).

• Can be merged with the IT technology (software system) for intelligent grid system: electrical supplier and consumer changing information interactively to optimize energy consumption.

• Power can be used during the situation of blackout by decreasing peak-time energy consumption.