Solar PV has many strong points – (i) PVs will work any where the sun shines – the sunnier it is, the more the electricity produced, and the lower the per kWh cost. Some electricity is produced even when it is cloudy, (ii) unlike the wind turbines which needs to have winds with speeds of more than 18 km/hr to start producing power, PVs have no such constraints – they work any where the sun shines, (iii) it is quiet, has nomoving parts, can be installed easily, and can be sized at any scale, ranging from a single bulb, to powering the entire community. It has two serious drawbacks : (i) it is expensive – its levelized cost ( US cents 20-40/kWh) is several times more than that of electricity from the fossil fuels (US cents 3 to 5/kWh). The PV costs are coming down all the time, but they are a long way from being competitive. (ii) It is intermittent – no power is generated during nights when there is no sun.