To meet the climate targets of the Kyoto Protocol in Europe, it's necessary to reduce the emissions of greenhouse gases such as carbon dioxide (CO2, serves as a reference value), methane (CH4), nitrous oxide (N2O) and nitrogen trifluoride (NF3). Also in the European electricity generation sector there exist corresponding saving and substitution potentials. As a result, several initiatives have been established in recent years dealing with the question, how far solar electricity generation based on Photovoltaic and CSP (Concentrated Solar Power) in the Middle East and Northern Africa could contribute to a more sustainable electricity supply in Europe. Due to the Arab Spring, it was rather quiet about the initiatives. In this thesis, the impact of solar electricity generation in Northern Africa on the Continental European wholesale electricity market prices is investigated. Additionally, the European transmission networks and their further development, particularly in the Mediterranean area, are analysed in detail. A fundamental market model is used for the analysis, which is programmed with the algebraic modelling language GAMS. Two models are explained: the first one determines the profit maximizing optimum for the transmission grid operator for a given power plant portfolio and cost-minimizing power plant dispatch (Variant 1) and the second one the welfare maximizing optimum based on the assumption that the transmission grid is a "copper plate" (Variant 2). Only the first one is relevant for practice in energy economics. The Mixed-Integer Optimization Model is evaluated with data from 2012 and then some scenario analyses for the year 2030 are made. Therefore, several scenarios will be examined. Variant 1 starts with the assumption, that the planned expansion projects of the transmission network from ENTSO-E (European Network of Transmission System Operators for Electricity) can't be implemented until 2030. In the next step, the influence of the Continental European transmission network expansion is examined. Finally, solar electricity generation in Northern Africa and the transmission lines in the Mediterranean area are considered. A distinction is made between Photovoltaic and CSP plants based on their technical properties. For Variant 2 two scenarios are considered: the first one also deals with the question on the power plant dispatch in case of no solar imports from Northern Africa in 2030. The second scenario considers an installed capacity of 20 GW of photovoltaic systems in Northern Africa. The results of the model provide a clear indication that the highest CO2 savings can be achieved with installed CSP plants in the Middle East and Northern Africa. This implies the expansion of the transmission network in the Mediterranean region in order to enable the imports of solar electricity generation to Europe. The solar imports, furthermore, affect the wholesale prices of the electricity exchanges. The wholesale electricity price levels can be significantly decreased in some regions. However, due to the volatile electricity generation of renewable energy technologies the flexible fossil power plants are expected to maintain a certain reserve capacity in order to guarantee stability in transmission network operation.