Green energy management system (GreEMys)

Nabilah , Mat Kassim (2014) Green energy management system (GreEMys). Project Report. UTeM. (Submitted)

Text GREEN ENERGY MANAGEMENT SYSTEM (GreEMys) 24pages.pdf Download (621kB)

Abstract

Tenaga Nasional Berhad (TNB) generates, transmits, distributes and sells the energy to consumer throughout Malaysia. With the global environment pollution and energy crisis, a renewable energy is playing a more and more important role in energy production. Solar energy is as a type of renewable energy. It is widely applied in manufacturing and living activities and the battery is the most common of energy storage for the solar system. Commonly, the system is already provided such Uninterruptible Power Supply (UPS) which is used as a backup power supplies while the utility system is out of stage. The battery bank from UPS is charge from the utility power supply and this system will increase the electricity bill. Nowadays, alternative way for reduce electricity bill is by using Renewable Energy (RE) such as solar energy. RE can be store into battery as a backup or it is also can used directly to the appliances. When using a multi power source, which one of the power source to be used first for optimal savings. Therefore, one system are need to make RE is first priority resource for the house and TNB are used after the battery is running out. The Green Energy Management System (GreEMys) is developed to manage the power supplies for house while the house owner used RE and TNB as a power supply. GreEMys will select either one power supply depend on the State of Charge (SOC) of battery. Through this system, while battery stored energy from GE until full, this system will choose RE for supply electricity to house and used until battery is weak, then the system will change to TNB for feed electricity to the house while waiting for the battery recharged by GE again until full. Moreover, this GreEMys can display the mode of power source either RE or TNB and also display the percentage of SOC. Through this system, GreEMys product increase electricity conservation by using solar energy at house as a priority used and TNB are used while RE from battery is exhausted.

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