There is a potential to utilize a significant amount of renewable energy in Sweden and EU. Biomass can fulfil some 8 500- 12 500 TWh/y in EU, while the total utilization was 16 084 TWh/y 2009. Even though there is a significant amount of wind power, hydro power and potentially also solar power, it still is most economical to reduce the consumption of heat, electricity and fuels for vehicles. A saved kWh is normally cheaper than to produce one extra. In this paper different opportunities for saving energy will be discussed. This includes manufacturing industries, process industries, power plants and energy systems including distribution of power and smart grids, food production and transportation. There is also a major potential to save energy in buildings, both in the north where it is cold, and in the south where it can be very hot summertime. Here the potential is to avoid cooling instead. Technical solutions as well as economic incentives will be covered. Environmental aspects will be addressed, so that the solutions will be long term sustainable.
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