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Clear Sky Index: Framtagen med enkortsdator och webbkamera
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
2015 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

A future sustainable society need to rely more on renewable energy sources. One of the most promising alternatives is solar power. However, there are inherent fluctuations accompanied with solar power, for example if the shadow of a cloud blocks the sun light on a whole solar cell it will not produce any power. This will cause problems with connecting the solar panels to the power grid. Clear sky index (CSI) is a measurement of how much of the sky that is covered by clouds, and is a key parameter for planning of large scale solar panels.

This report describes the manufacturing and programming of a cheap device for calculating the so called clear sky index (CSI) over a large portion of the sky. The device contains a Raspberry PI computer with a camera module, and utilize a program that through the computer-vision library OpenCV can calculate the CSI of the images provided by the camera.

The resulting prototype costs about 800 SEK, and has possibility to be improved by adding a fish-eye lens to cover a bigger area, or to be water resistant by improving the casing, without exceeding a 1000 SEK price tag.

Place, publisher, year, edition, pages
2015. , 15 p.
Series
TVE, 15 066 september
Keyword [en]
Clear Sky Index
Keyword [sv]
Clear Sky Index
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-265244OAI: oai:DiVA.org:uu-265244DiVA: diva2:864201
Educational program
Master Programme in Engineering Physics
Supervisors
Examiners
Available from: 2015-10-27 Created: 2015-10-26 Last updated: 2015-10-27Bibliographically approved

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