Reference : Ein Blick auf aktuelle Entwicklungen bei Blockchains und deren Auswirkungen auf den E...
Scientific journals : Article
Engineering, computing & technology : Computer science
Computational Sciences
http://hdl.handle.net/10993/45509
Ein Blick auf aktuelle Entwicklungen bei Blockchains und deren Auswirkungen auf den Energieverbrauch
German
[en] A look at current developments in blockchains and their effects on energy consumption
Sedlmeir, Johannes [University of Bayreuth, Bayreuth, Germany]
Ulrich Buhl, Hans [University of Augsburg, Augsburg, Germany]
Fridgen, Gilbert mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > FINATRAX >]
keller, Robert [University of Augsburg, Augsburg, Germany]
6-Nov-2020
Informatik-Spektrum
Springer
Yes
0170-6012
Germany
[en] The enormous power consumption of Bitcoin has led to undifferentiated discussions in science and practice about the sustainability of blockchain and distributed ledger technology in general. However, blockchain technology is far from homogeneous—not only with regard to its applications, which now go far beyond cryptocurrencies and have reached businesses and the public sector, but also with regard to its technical characteristics and, in particular, its power consumption. This paper summarizes the status quo of the power consumption of various implementations of blockchain technology, with special emphasis on the recent ‘‘Bitcoin Halving’’ and so-called ‘‘zk-rollups’’. We argue that although Bitcoin and other proof-of-work blockchains do indeed consume a lot of power, alternative blockchain solutions with significantly lower power consumption are already available today, and new promising concepts are being tested that could further reduce in particulary the power consumption of large blockchain networks in the near future. From this we conclude that although the criticism of Bitcoin’s power consumption is legitimate, it should not be used to derive an energy problem of blockchain technology in general. In many cases in which processes can be digitized or improved with the help of more energy-efficient blockchain variants, one can even expect net energy savings.
Fonds National de la Recherche - FnR ;
P17 / IS / 13342933 / PayPal-FNR / Chair in DFS / Gilbert Fridgen
http://hdl.handle.net/10993/45509
10.1007/s00287-020-01321-z

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