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Most energy sources we use have low efficiency and rely on non-renewable resources. GreEnergy envisions more efficient use of the cleanest, most powerful and nearly unlimited energy source available: the Sun.

Current solar photovoltaics (PV) produce roughly 4% of the world’s electricity, due to low efficiency and relatively high cost. The GreEnergy challenge is to develop an integrated optical antennas array, which can harness energy from the light spectrum with very high efficiency (20-40%), at an estimated system cost below €100 per 1m2. This also results in more power per specific area.

To do so, GreEnergy devices will integrate nano-optical antennas with nano-rectifiers (rectennas) and a micro-energy storage component, on a single microchip.

Our technology has the potential for revolutionary development of IoT devices which will not need to be charged from an external power supply. Examples of applications which would benefit from our progress are autonomous micro-drones for real-time environmental monitoring, wearable outdoor devices and outdoor sensors for structural monitoring.

This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 101006963 (GreEnergy).

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