1 If the patent application was filed on or after June 8, 1995, the starting patent term is 20 years. 2  This accounts for the vast majority of patents in force today. 3  The 20 year term is calculated based upon the priority filing date, not counting provisional application or the original filing in a foreign country.
The report indicates that the median installed price of PV systems completed in 2012 was $5.30/W for residential and small commercial systems smaller than 10 kilowatts (kW) in size and was $4.60/W for commercial systems of 100 kW or more in size.
Solar panels are currently selling for as low as US$0.70 per watt (7-April-2012) in industrial quantities; the balance of system The price difference between German and US photovoltaic systems was analyzed in 2013 by Lawrence Berkeley National Laboratory.t refers to the number of dollars one would have to spend to buy a machine capable of producing one watt of electricity. It is calculated by dividing the total project capital cost by the amount of peak power or watts-peak (W p) it can produce.