With the increase in the consumption of energy and population, there is a great need to conserve energy in every way possible. The inability to access and control the appliances from remote locations is one of the major reasons for energy wastage. This project presents the development and implementation of a Global System for Mobile Communication (GSM) based remote control system for electrical appliances and lighting that enables complete control of the interface on which it is based. GSM Shield was used for receiving short message service (SMS) from the homeowner ” s mobile phone that automatically enables an microcontroller to take the necessary actions like switching OFF and ON electrical appliances such as fan, light, air-conditioner, supply mains and so on. Basically, it reads the SMS and acts according to the message. Similar products commercially available are Internet dependent and so lack the true sense of real mobility and security. However, the present GSM based remote control system allows the homeowner to control household appliances from anywhere using the mobile phone and also prevents unauthorized access to these appliances. Crucial to the present system is the provision of security on detection of intrusion via SMS using GSM technology. This GSM based HACS is recommended for implementation in every home to tackle the rampant energy wastage.