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The Potential for Harvesting Energy from the Movement of Trees
Commonwealth Scientific and Industrial Research Organisation (CSIRO), P.O. Box 330, Newcastle, NSW 2300, Australia
* Author to whom correspondence should be addressed.
Received: 23 July 2011; in revised form: 1 September 2011 / Accepted: 27 September 2011 / Published: 28 September 2011
Abstract: Over the last decade, wireless devices have decreased in size and power requirements. These devices generally use batteries as a power source but can employ additional means of power, such as solar, thermal or wind energy. However, sensor networks are often deployed in conditions of minimal lighting and thermal gradient such as densely wooded environments, where even normal wind energy harvesting is limited. In these cases a possible source of energy is from the motion of the trees themselves. We investigated the amount of energy and power available from the motion of a tree in a sheltered position, during Beaufort 4 winds. We measured the work performed by the tree to lift a mass, we measured horizontal acceleration of free movement, and we determined the angular deflection of the movement of the tree trunk, to determine the energy and power available to various types of harvesting devices. We found that the amount of power available from the tree, as demonstrated by lifting a mass, compares favourably with the power required to run a wireless sensor node.
Keywords: energy harvesting; energy scavenging; tree energy; tree movement; tree sway; wireless sensor network; sensor node; wind energy
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MDPI and ACS Style
McGarry, S.; Knight, C. The Potential for Harvesting Energy from the Movement of Trees. Sensors 2011, 11, 9275-9299.
McGarry S, Knight C. The Potential for Harvesting Energy from the Movement of Trees. Sensors. 2011; 11(10):9275-9299.
McGarry, Scott; Knight, Chris. 2011. "The Potential for Harvesting Energy from the Movement of Trees." Sensors 11, no. 10: 9275-9299.