Switching from Renewable to Renewable - A Case Study from Nordic Perspective

Human beings have been using energy in its different forms since early times and the use of energy has been increasing since then. Though the degree of energy utilisation varies from country to country as a result of different conditions, energy is being used for different purposes within different sectors as for example household (residential), industry, transport, service, agriculture etc. Within the household, industrial and the service sector energy is used commonly for lighting, heating, cooling, tap water heating and running different devices. A large portion of the world's energy is used within the household and service sectors. According to International Energy Agency (IEA, 2009a), the energy consumption of these two sectors alone accounted for 37 % of the world's total final energy consumption in 2006. In terms of CO2 emissions, these sectors make up about 32 % of end-use sectors CO2 emissions during the same period.