The average solar energy system size in the U.S is approximately 5 kilowatts (kW). Based on the average price of $3.36/watt, a 5kW system would cost $11,760 after tax credits. Below are some average 2015 quotes for other solar energy systems by size: 6kW solar energy system cost: $15,000. 8kW solar energy system cost: $20,000.
Pros: 1  Economical option. Homeowners appreciate the sleek appearance of an asphalt-paved driveway at a lower cost than concrete or paver surfaces. 2  Flexible in extreme climate conditions. Asphalt driveways typically cost $2 - $5 per sq foot to install - more than gravel, but much less than many other options. 3  Long lifespan.
An asphalt-blacktop driveway seems to be a great idea. Asphalt concrete, informally known as blacktop, uses asphalt as a binder, with mineral aggregate mixed in it. It is laid in layers and compacted. It is one of the most common materials used for driveways in the USA. Being durable and reasonably low in maintenance, it is an overall good choice.