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.
Buying a home solar system. If youâre buying a home solar system, how much can you expect to pay? The average cash price of a residential (photovoltaic) PV system ranges from $15,000 to $40,000, depending upon home size and utility bill, but the old adage, âYou get what you pay for,â applies. Not all solar systems are alike.