Solar panels are priced in watts. If you bought directly from the factory, the current price is 0.17-0.25. So a 400 watt panel would cost between 68 and 100 USD. 0 Share This Previous Post← How much electricity will one solar panel give me? How much electricity will one solar panel give me? Next PostChina is building a solar OPEC → China is building a solar OPEC You May Also Like . Solar panels are made from silicon ingots View Post . Solar is the only way forward for Lebanon View Post . Baalbek is truly the Temple of the Sun – and solar proves it View Post