
Because BIPV systems generate on-site power and are integrated into the building envelope, the system’s output power and thermal properties are the two primary performance indicators. Conventional BIPV systems have a lower heat dissipation capability than rack-mounted PV, which results in BIPV modules experiencing higher operating temperatures. Higher temperatures may degrade the module's semiconducting material, decreasing the output efficiency and precipitatin. [pdf]

Celsian is a barium feldspar with a chemical composition BaAl2Si2O8. It forms part of the feldspar group and belongs to the celsian- series and the celsian- series. It has some resemblance to , and it has four distinct . The essential elements are silicon, aluminum, oxygen, and barium. Some common impurities in the mineral are iron, titanium, magnesium, potassium, and calcium. Celsian is stable from room temperature up to 1590 °C (Li. [pdf]
Celsian has very attractive features such as chemical stability and high mechanical resistance, which can be favourably exploited in order to obtain enhanced-performance composites with respect to bulk glass. (Cannillo, Carlier, Manfredini, Montorsi, and Siligardi 2006).
Celsian is an uncommon feldspar mineral, barium aluminosilicate, Ba Al 2 Si 2 O 8. The mineral occurs in contact metamorphic rocks with significant barium content. Its crystal system is monoclinic, and it is white, yellow, or transparent in appearance. In pure form, it is transparent.
The symmetry in celsian is somewhat different from the symmetry normally found in feldspars. It is monoclinic with a body centered lattice similar to those of anorthite. Insufficient evidence has been found to suggest that celsian lacks a center of symmetry, so its space group is I 2/c (Newnham and Megaw, 1960).
It has some resemblance to anorthite, and it has four distinct polymorphs. The essential elements are silicon, aluminum, oxygen, and barium. Some common impurities in the mineral are iron, titanium, magnesium, potassium, and calcium. Celsian is stable from room temperature up to 1590 °C (Lin and Foster, 1968).
There are four distinctive polymorphs of celsian, two of them are the natural minerals and the other two are synthetic products. The first are paracelsian and celsian, the second ones are hexacelsian and the other one is related to the mineral cymrite (Lin and foster, 1967).

exploitation in Kosovo started in 1922. New mines were opened to satisfy the needs by increasing generation capacities. Kosovo Energetic Corporation (KEK) is a public company, which owns and operates with assets of electric energy. The greatest part of generation capacities of Kosovo are the two power plants: . Kosovo Energy Corporation J.S.C. (: Korporata Energjetike e Kosovës, abbreviated as KEK) is a company based in engaged in and allied activities. Its capacity is estimated to be around 1480+ MW. Kosovo Energetic Corporation (KEK) is a public company, which owns and operates with generation assets of electric energy.. Kosovo Energetic Corporation (KEK) is a public company, which owns and operates with generation assets of electric energy.. Kosovo Energy Corporation sh.a. (KEK JSC) is the main energy enterprise in the Republic of Kosovo. It is vertically integrated and was incorporated at the end of 2005.. Kosovo Energy Corporation J.S.C. (Albanian: Korporata Energjetike e Kosovës, abbreviated as KEK) is a company based in Kosovo engaged in generation of electricity and allied activities. [1][2] Its . [pdf]
Energy Corporation of Kosovo sh.a. (KEK sh.a.) is the main energy company in the Republic of Kosovo. It is vertically integrated and was corporatized at the end of 2005. The Corporation's assets are fully owned by the Government of the Republic of Kosovo. In different periods of time KEK sh.a. underwent numerous changes.
Besides government institutions, there are also companies with great impact in energy sector such as Kosovo Energy Corporation ( KEK ), Transmission, System and Market Operator ( KOSTT) and Kosovo Electricity Distribution and Supply (KEDS). A lot of legislative documents that aim the adjustment of electricity sector have been approved.
Kosovo was part of the Regional Energy Community and was connected with the regional system through interconnections with Serbia, North Macedonia, Montenegro and Albania. KOSTT made an agreement with ENTSO-E so Kosovo gets his own independent region of energy administration. Kosovo gets full independence and control of its energy industry.
Kosovo Energy Distribution and Supply Company (KEDS) is a company operating throughout Kosovo having the exclusivity for electricity supply and distribution in the territory of Kosovo. Since May 2013, Kosovo Energy Distribution and Supply split from Kosovo Energy Cooperation and started its operational activities as a joint stock company.
Regulation of activities in energy sector in Kosovo is a responsibility of the Energy Regulatory Office (ERO). An additional factor in the energy sector in Kosovo is Ministry of Economic Development (MZHE), which has the responsibility of dealing with issues that have to do with energy. MZHE prepares legislation and drafts strategies and projects.
Electricity Distribution Services in Kosovo J.s.c (KEDS) owned by prestigious Turkish companies Çalik Holding and Limak started operations on May 8, 2013. Based on licenses from the Energy Regulatory Office, KEDS has the exclusivity of electricity distribution throughout the territory of Kosovo.
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