In recent years a lot of studies focused on Energy Scavenging Systems (ESS) which is used to harvest the environmental energy and to convert it into electrical energy. The objective of an ESS is to replace the batteries, which are the classical power sources or to extend their life time as long as possible. A Self-Supplied Integrable Active High-Efficiency Piezoelectric Energy Scavenging System (ESS) was proposed in this paper. This paper presents an innovative, totally integrated, ambient mechanical energy scavenging system .This ESS can be operated in combination with the photo voltaic (PV) installation in order to
• To increase the overall efficiency of the solar energy system (PV),
• To keep on charging the storage batteries even when the power outputs of solar cells were negligible due to worst climatic conditions (clouds and heavy rains) and during nights. Hence to provide an uninterruptible and reliable source of energy,
• Increase the load handling capability of the solar energy system,
• Increase the amount of energy accumulated in the storage batteries,
• ESS in combination with solar cells acts as additional energy source to charge the storage batteries,
• Increase the life of the storage batteries. An Embeddable, non-life-limiting power source for Wireless Sensor Nodes (WSN) can be realized Solar panels (PV) are well suited for the generation of electricity for domestic (small scale-typically for residential applications) and for remote sites which are distant from power grids. “No solar energy will be produced during night time although a battery backup system will solve this problem. However, due to worst climatic conditions (Stormy weather), the efficiency of the solar panels decreases drastically. The power supplied by these renewable sources is highly variable in time and unreliable. In order to encounter these