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.
Assessing financial viability of solar panel installations- recap. Overall (Average) Solar panels cost (from recently updated figures in 2013) ranges between $1750 â $2500 per Kw of installed capacity (average Solar panel cost per kw). This figure includes purchasing the equipment and cost for solar panel installation.