Low-cost, open-hardware shadow band system for diffuse irradiance measurements

G. Quispe, J. Pérez, L. Conde, A. Carhuavilca, A. Berastain, M. García, J. A. Töfflinger

Research output: Contribution to journalConference articlepeer-review


In this work, we present the design, implementation, and test of a low-cost, open-hardware shadow band system that enables a pyranometer to measure global and diffuse irradiance. This system was implemented in Lima, Peru, and experimentally tested by contrasting it with a commercial reference system consisting of two pyranometers, one blocked by a shadow ring. The developed shadow band system automatically opens and closes to measure the global and diffuse irradiance consecutively, respectively, without requiring regular, manual adjustments of the shadow ring position as in the reference system. Thus, it potentially saves costs on equipment to characterize de irradiance components. Initial measurements in Lima indicate 100#x00025; and at least 23#x00025; of diffuse irradiance under cloudy and clear sky conditions, respectively.

Original languageEnglish
Article number012001
JournalJournal of Physics: Conference Series
Issue number1
StatePublished - 2023
EventPeruvian Workshop on Solar Energy 2022, JOPES 2022 - Virtual, Online, Peru
Duration: 11 May 202213 May 2022


Dive into the research topics of 'Low-cost, open-hardware shadow band system for diffuse irradiance measurements'. Together they form a unique fingerprint.

Cite this