The energy generation in Albania is completely from the hydropower plants. In terms of GHG emissions this is 100% green. In Kosovo 97% of energy is generated from lignite fired power plants. Apart the energy generation, the combustion process emits around 8000 ktCO2/yr and 1.5 Mt of ash in the form of fly and bottom ash. In both countries there is no MWh power generated from wind energy, i.e. this energy source is not utilized. Here, a proposed project for five locations in Albania and Kosovo has been analyzed in detail with the aim of installing a 1kW wind turbine off-grid. The method of study is based on the application of RETScreen International program software. This proposed model is intended to replace a base case- a diesel generator with installed capacity 7kW. The locations are selected three in Albania: Vlora, Korça and Elbasan, and two in Kosovo: Prishtina and Prizren. All are in different altitudes. By the calculation of RETScreen program, it has been analyzed the feasibility of the proposed projects by installing a wind turbine at hub’s height 20m. The climate data for each location were retrieved by the RETScreen program from NASA. Generally, the calculation of financial parameters for the investments came out to be positive, the impact of GHG reduction very significant. A 5500 USD investment for the implementation of proposed case showed an equity payback time of 2-3 yrs and GHG reduction of 2.2 tCO2/yr. The electricity delivery to load only from this 1 KW wind turbine resulted to be between 1.6-17 MWh/yr.
In Kosovo, except electrical energy, thermal power plants (TPP) annually produce more than 1.5 Mt of solid waste: Fly Ash (FA) and Bottom Ash (BA). Kosovo’s construction sector annually consumes around 1 Mt of cement. The environmental impact from cement production (consumption) is the emission of around 1 Mt of CO2. The focus of this study is the utilization of FA in concrete as cement replacement, which will indirectly mitigate the CO2 emissions from cement production. The properties of concrete with FA were investigated. For determining the optimum quantity of FA in concrete, four concrete mixes with different content of class C FA were tested. Density and consistence tests of FA fresh concrete, as well as tests of mechanical properties: compressive, tensile and splitting strength of FA hardened concrete specimens were performed. Concrete resistance to permeability was tested by measuring the depth of water penetration under hydrostatic pressure. The correlation between test results of concrete specimens with FA to reference concrete without FA was done. A 30% cement replacement by fly ash showed experimentally to be reasonable. The environmental benefit would be twofold: indirect decrease of 300,000 t of CO2 and removal of 125,000 m3 of industrial waste (FA).
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