Uzbekistan electricity producer in Central Asia. Renewable energy constitutes more than 23% of the country's energy sector, with hydroelectricity and solar energy having 21.4% and 2% respectively. Uzbekistan has an area of . It is the 56th largest country in the world by area and the 42nd by population. Among the CIS countries, it is the 4th largest by area and the 2nd largest by population. Uzbekistan lies between latitudes 37° and 46° N, and longitudes 56° and 74° E. It stretches from west to east and from north to south. Bordering Kazakhstan and the Aral Sea to the north and
Science and technology in Uzbekistan 14.1 "Note: PhD graduates in science cover life sciences, physical sciences, mathematics and statistics, and computing; PhDs in engineering also cover manufacturing and construction. For Central Asia, the generic term of PhD also encompasses Candidate of Science and Doctor of Science degrees. Data are unavailable for Turkmenistan." In 2014, Uzbekistan had a population of 29.3 million, compared to 16.6 million for Kazakhstan. The two most populous countries of Central Asia logically count the most researchers: just over 30 000 for Uzbekistan and 17 000 for Kazakhstan (in head counts), compared to a little over 2 000 for each of Kyrgyzstan