This paper presents and evaluates the effectiveness of using a hybrid energy harvesting scheme consisting of AC and DC generators based on piezoelectric and Thermoelectric respectively, for powering a wireless sensor node. In comparison to conventional single harvesting mechanism, a hybrid scheme able to complement each other to ensure a more sustainable application. In this project, heat and vibration, which are ubiquitous from the ambient environment especially those in an oil and gas industries, are being explored, converted and integrated in the form of a hybrid topology in order to increase the chances of survivability of the wireless sensor node. The experimental result showed that charging time required to fully charge a 5V, 15mF capacitor bank for parallel is 27s while for series is 20s. It clearly show that piezoelectric and thermoelectric generators arranged in series topology is better compare to in parallel, in term of capacitor charging time.

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