images and global solar irradiance measurements. The scientists claim that the novel approach is able to improve solar nowcasting and intra-hour forecasting, while being applicable to PV real-time ...

A Finnish-Norwegian research group has investigated model chains for horizontal-to-vertical solar irradiance conversion in east-west oriented vertical PV systems located at high latitudes.

Since solar irradiance is about 120 W/m² (PDF warning), [Markus] is concentrating a lot of energy onto a point the size of a quarter, which would be necessary to heat up sand to its 1500° C ...