Simulating Interior Radiant Energy for the Design and Prototyping of an Indoor Solar PV Lamp

M.H. Verkou*, H. Ziar, O. Isabella, M. Zeman

*Corresponding author for this work

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientific

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Abstract

The increasing development of photovoltaic (PV) technologies allows for more feasible PV products, that can split the fixed big electrical infrastructure into smaller mobile systems, suitable for future smart buildings. This research, investigates opportunities for interior PV (IPV) products, that harvest indoor ambient light. The outcome is a working prototype of a standalone indoor solar lamp. An indoor light simulation model is presented and validated for two rooms in Delft with absolute error of 10% compared to measurements over five days per room. The prototype consists of a tailor-made, foil-to-foil laminated PV module, consisting of 36 pieces of laser cut SunPower interdigitated back contact (IBC) cells. At standard test conditions, a maximum DC output of 35.9 Wp was measured, corresponding to a module efficiency of 20.3%. Furthermore, a charge controller with maximum power point tracking algorithm was used to charge a 12 V polymer lithium-ion battery pack. The combination of pyroelectric infrared (PIR) motion sensor detector and a light sensor module assures a conservative use of a 2.4 W strip of light emitting diodes (LED). Keywords: Indoor photovoltaics (IPV), interior light simulation, RADIANCE, PV module design, prototyping, SunPower IBC technology, laser cutting
Original languageEnglish
Title of host publicationproceedings of the 37th European Photovoltaic Solar Energy Conference and Exhibition
Pages1738-1742
Publication statusPublished - Oct 2020
Event37th European Photovoltaic Solar Energy Conference and Exhibition - Marseille, France
Duration: 9 Sept 201913 Sept 2019
Conference number: 37

Conference

Conference37th European Photovoltaic Solar Energy Conference and Exhibition
Abbreviated titleEU PVSEC 2019
Country/TerritoryFrance
CityMarseille
Period9/09/1913/09/19

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