Samir Jeddi, M.Sc.
has been working as a Research Associate and as a doctoral candidate at EWI since 2017. In consulting projects for clients from the industry and public sectors, he has analyzed, e.g., the effects of a national and cross-sectoral CO2 price on end consumers’ costs of energy supply. He has advised, among others, several German utilities. His research focus lies in modeling of short- and medium-term electricity markets. Before joining EWI, Samir Jeddi studied Business Administration at TU Dresden (Germany) and ISCTE Lisbon (Portugal) as well as Business Chemistry at Heinrich-Heine-Universität Düsseldorf (Germany).
Client: WirtschaftsVereinigung Metalle e.V.
Electricity cost in the non-ferrous metal industry – A sensitivity analysis
On behalf of the WirtschaftsVereinigung Metalle e.V., EWI analysed the effects of an increase in electricity prices on the gross value added of exemplary companies in the non-ferrous metal industry. In 2017, the electricity prices of companies in the non-ferrous metal industry fluctuated between 3.6 ct/kWh for an aluminium electrolysis plant and 14.0 ct/kWh for a small copper rolling mill. The large differences are mainly due to the deviating regulatory relief schemes. Compared to other branches of the manufacturing industry, the electricity cost intensity is highest in the metal industry with an average of 14.5 %, an electricity price increase therefore has comparatively strong effects. An increase in electricity prices by 1.0 ct/kWh would reduce the gross value added of the metal industry by 439 million Euro (2.3 %), processes with high electricity-cost intensity such as aluminium electrolysis would be particularly affected strongly.
Supported by the German Federal Ministry of Education and Research (BMBF)
Short study: Flexibility potential of households for the network-related reduction of demand peaks
In future, increased use of heat pumps and electric cars in the building and transport sectors could create new requirements for network expansion and operation, especially in the low-voltage networks. The increased use of heat pumps and electric cars has an impact on the quantity of electricity demanded and on the temporal structure of electricity demand. Against this backdrop, the question arises as to which flexibility potentials could be used cost-effectively in households in the future.
In the context of this study, the flexibility potential of different household types is analysed. The focus here is on the costs of flexibility in time windows that are potentially critical for low-voltage grids. The study is based on the ewi ER&S model for the analysis of consumer behaviour (COMODO) and analyses the flexibility potentials for the year 2030.
Geschäftsmodelle zur Einbindung dezentraler Anlagen auf Haushaltsebene in Virtuelle Kraftwerke
Georg Holtz, Samir Jeddi, Johannes Fleer, Sascha Birk, Max Schönfisch, Dietmar Lindenberger, Thorsten Schneiders; 2019
In: et - Energiewirtschaftliche Tagesfragen, Vol. 69 (3), pp. 33 - 36.