There's no evidence that any of the four destroyed planes were lost to pilot error. A fifth alleged crash turns out to be a misinterpretation of a flight accident that did not result in the loss of the aircraft. McCain admitted to causing that incident through daredevil clowning but returned safely.
Cost breakdown. 1  The material cost of the horizontal mount 4 PVC gutter sections including necessary hangers and couplers is around $2.00 per foot, and professional installation cost is an additional $1.80 per foot. 2  Corner fittings cost $7 each and $3 each to be installed professionally.
The cost of a solar electric system is measured in dollars per watt. The average cost for a residential system is currently $3-5 per watt. That means the average 5-kW residential system will cost $15,000-$25,000, prior to tax credits or incentives. A one-time âResidential Renewable Energyâ federal investment tax credit (ITC) is available for residential solar PV systems.