LEDs for energy efficient greenhouse lighting

authored by

Devesh Singh, Chandrajit Basu, Merve Meinhardt-Wollweber, Bernhard Roth

Abstract

Light energy is an important factor for plant growth. In regions where the natural light source (solar radiation) is not sufficient for growth optimization, additional light sources are being used. Traditional light sources such as high pressure sodium lamps and other metal halide lamps are not very efficient and generate high radiant heat. Therefore, new sustainable solutions should be developed for energy efficient greenhouse lighting. Recent developments in the field of light source technologies have opened up new perspectives for sustainable and highly efficient light sources in the form of LEDs (light-emitting diodes) for greenhouse lighting. This review focuses on the potential of LEDs to replace traditional light sources in the greenhouse. In a comparative economic analysis of traditional vs. LED lighting, we show that the introduction of LEDs allows reduction of the production cost of vegetables in the long-run (several years), due to the LEDs.

Organisation(s)

Hannover Centre for Optical Technologies (HOT)

External Organisation(s)

University of Basel

Type

Review article

Journal

Renewable and Sustainable Energy Reviews

Volume

49

Pages

139-147

No. of pages

9

ISSN

1364-0321

Publication date

01.09.2015

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment

Sustainable Development Goals

SDG 7 - Affordable and Clean Energy

Electronic version(s)

https://doi.org/10.1016/j.rser.2015.04.117 (Access: Open)