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Merkebu Zenebe Degefa

Research Scientist

Merkebu Zenebe Degefa

Research Scientist

Merkebu Zenebe Degefa
Phone: 930 91 984
Email:
Department: Energy Systems
Office: Trondheim

Publications and responsibilities

Publication
https://www.sintef.no/en/publications/publication/1925082/

This article investigates and analyzes the security aspects of 5G specifications from the perspective of IoT-based smart grids. As the smart grid requires high-speed and reliable communication to enable real-time grid monitoring via Internet of Things (IoT) devices, 5G can be considered a catalyst...

Publication
https://www.sintef.no/en/publications/publication/1941559/

As of 2019, the world population without electricity access is estimated to 770 million with most of these communities residing in sub-Saharan Africa. Nevertheless, between 2000 and 2019 the Indian population with electricity access has grown from 43% to 99%. Minigrids have played a major role in...

Year 2021
Type Academic chapter/article/Conference paper
Publication
https://www.sintef.no/en/publications/publication/1921944/

Simultaneous activation of demand side flexibility on thermostatically controlled loads will cause adverse impacts later in the form of rebounds. Distribution system operators must know the characterisation of the impact, as they are responsible for voltage quality of power delivery and suffer the...

Year 2021
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/1891172/

Due to the increasing integration of renewable forms of generation, ageing network infrastructure, and rapid increase in peak load demand, flexibility is becoming economically more viable and hence significant role player in the future power system. There is vast amount of literature on flexibility...

Year 2021
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/1832505/

This paper studies the electricity consumption of 5 villas in the south of Norway and estimates the effect of utilizing batteries as a means to reduce peak load for each villa. High-resolution field data on the consumption pattern for the villas is presented. A simple battery model is utilized, and...

Year 2020
Type Academic chapter/article/Conference paper
Publication
https://www.sintef.no/en/publications/publication/1896875/

Håndbok Spenningsregulering er utarbeidet som en del av SAMREG-prosjektet, som er et forskningsprosjekt finansiert av norske distribusjonsnettselskap. Hensikten med håndboka er å gi nettselskap og andre aktører økt kunnskap om spenningsreguleringstiltak og hvordan man kan utnytte og samordne...

Year 2020
Type Report
Publication
https://www.sintef.no/en/publications/publication/1880483/

Datasett: This is flexibility model for shiftable atomic loads (i.e. washing machine, dryers and dish washers). The model is based on real 1-minute level measurements from real households over period of time. The details of the model are described in [R]. The model is implemented in Excel for...

Year 2020
Type Other product
Publication
https://www.sintef.no/en/publications/publication/1880479/

The script water_heater_flexibility_impact.m uses the initial conditions and provided by init_200L_RCLoad.mat to simulate nominal power profile of water heater(s) with the given upper and lower temperature thresholds. The possible flexibility activation duration also calculated. Further, the impact...