Sustainable development of the Prefecture of Kephalonia
An optimisation methodology is applied on the islands of Kephalonia and Ithaca (Prefecture of Kephalonia) in Greece, where various Renewable Energy Sources (RES) can be found and could be exploited to satisfy part of their energy needs. These resources are examined and a case study is performed for Kephalonia that involves an application of specific mathematical tools that will lead to a set of energy solutions. Many scenarios of cases were examined where the requirements of certain end uses were increased and also cases where some of the renewable energy systems were not at the maximum of their potential.
The Optimal use of Renewable Energy Sources—The Case of Lemnos Island
The efficient use of renewable energy sources (RES) is one of the major issues in the modern energy sector. The objective of this work was to examine the potential of wind energy, solar energy (e.g., photovoltaics), and biomass energy sources to meet the current energy use in the island of Lemnos in Greece. An optimization methodology was applied to the energy system of the island, where various RES are abundant and could be exploited to satisfy part of the island's energy needs. An optimization model has been developed having as an objective the satisfaction of Lemnos Island energy needs from RES taking into consideration a multiplicity of criteria such as environmental impacts, energy demand, energy cost, and resources availability. A series of solutions have resulted, based on deterministic model runs, providing decision makers the flexibility to choose the appropriate solution based on the given situation.
An Environmentally Benign Energy Future for Western Scania, Sweden
Abstract Energy systems which significantly reduce emissions of acidifying gases and carbon dioxide from non-mobile sources are identified for Western Scania, using an end-use accounting model. Carbon dioxide emissions can be reduced to 75% and acidifying gases to 50% of 1988 levels by 2010 using an energy system based on efficient end-use technologies, cogeneration, and renewable sources, while satisfying constraints imposed by national policy, namely, phasing out nuclear power, not increasing hydropower and maintaining strong economic growth. The costs for the energy services, excluding taxes and environmental fees, are in the same range as for a system mainly based on fossil fuels.