What Energy Harvesting Means to Smart Grid and M2M Sectors
……There’s new research underway that can unlock the potentials for the Smart Grid and M2M sectors. It builds on energy harvesting research, but has the objective of completely eliminating the need for a wired power delivery or battery replacements in devices. The best phrase to describe this growing field of research is energy self-sufficiency. Energy self-sufficiency will be a term used with increasing frequency in the Smart Grid and M2M sectors.
There are a number of promising sources of energy that can be used to deliver energy self-sufficiency such as solar, piezoelectric (kinetic forms like vibration), and thermal energy. There are pros and cons to each of them, and they are already deployed in chipsets – sometimes in combination for power provisioning. But electromagnetic waves can be harvested too – a concept first proposed by Nikola Tesla and Heinrich Hertz over a century ago.