#Author:Er Arun Tamang, Eleotronices Engieering NIT Sikkim India  https://nitsikkim.ac.in/

The average sunshine hours in Pakistan is in the range of 3000–3300 h per year, and approximately 1 kW of solar irradiance falls on a square meter for an average of 7hrs per day. Fortunately, geographically, Pakistan falls on the Sun-Belt and it is ideally located to grab the vulnerable advantages of solar irradiations. The solar index is abundantly available in a large area of the country. The southwestern part of Pakistan is especially wealthy in the existence of solar energy having normal irradiance of 20–21 MJ/m2 with yearly daylight of 8–8.5 h/d. Irradiations are absorbed by the solar water heating system, and exchange this heat either with fluid flowing through the tubes or directly heat the required fluid e.g. water. The heated fluid takes the thermal energy directly to heat water/process fluid or it is stored in, that can be used to run the process round the clock.

Solar powered plant in Balochistan

For the past decade or so, Balochistan province has been affected by recurring droughts. Lack of water availability forced many people to migrate to distant towns—the situation deteriorated to a degree where boring water out of the ground had also become increasingly difficult. With water availability reaching dangerously low levels, there was only enough water for humans to survive on—animals and livestock began to die due to water shortage, causing village locals to sell off their camels for as low as $100 to $150. Until recently, both humans and animals accessed drinking water from a single pond in the village where all the rainwater accumulated. Conditions became rough to the extent where this water also stagnated and was not safe for use.
The Government of Balochistan then collaborated with the United Nations Development Programme (UNDP) to provide remote villages of Noshki access to clean drinking water through solar-powered RO (Reverse Osmosis) plants. UNDP installed these solar-powered RO plants in village Killi Sardar Abdul Samad to provide access to clean drinking water to residents.
References:-
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