Hermann Diels popularized the term pre-socratic in Die Fragmente der Vorsokratiker (The Fragments of the Pre-Socratics) in 1903. However, the term pre-Sokratic was in use as early as George Grote's Plato and the Other Companions of Sokrates in 1865.
The cost of a solar panel today is around $3 per watt, and the extra cost of installation brings costs up to $5- $6 per watt. Note: Installation costs for PV systems include both labor and the electronics needed to tie the solar array into your existing electrical system.
overall average solar panels cost from recently updated figures in 2013 ranges between $ 1750 $ 2500 per kw of installed capacity average solar panel cost per kw this figure includes purchasing the equipment and cost for solar panel installationimplistic estimation of fits income for a solar panel installation under a fits scheme of $ 0 35c per kwh you will receive on average 1650 kwh x 0 35 kwh approx $ 580 per year per kw installed i e a 5kw home solar panels system will generate 5x $ 580 $ 2900 per year