At an installed cost of about $7,000, itâs an appliance that makes very little financial sense for most people. Tesla lists the price of the battery at $3,500, but that does not include installation, or an additional piece of equipment called an inverter that is needed to connect the battery to the home.
Strong blacktop driveways are typically built using crushed angular gravel as a base. This gravel needs to be a minimum of 6 inches thick for light vehicle traffic such as cars. If you expect larger commercial trucks on your driveway, I would install a gravel base that is a minimum of 8 inches thick. The soil beneath the gravel must also be of good quality.
1 (A cubic yard of gravel is 3'x3'x3' and weighs roughly 1.2 to 1.7 tons or more). 2  A 12'x25' single-car driveway 9 thick requires an estimated 10-14 tons, which can cost $100 -$850. 3  A 14'x100' driveway 6 thick requires about 26 tons of gravel, or $260 -$1,560 for just the stones. A cubic yard of driveway-grade crushed gravel costs about $10 -$60 or more, depending on whether it is picked up by the customer at the gravel yard or delivered to the job site, and the size and type of gravel used.