For this reason, total installation costs are commonly similar to the retail price of the panels alone.
But the installation costs are prohibitive for those with less means.
Federal incentives include a 30 percent tax credit for installation costs of solar projects.
"The solar panels alone get you 25 percent credit on their installation cost."
Total installation costs are supposed to be £14 billion.
This adds 30 percent to installation costs but should reduce energy needs.
The companies said the installation cost will be $200 million.
The state, he said, provides all the hardware, software, installation costs and training at no expense to a town.
This is less common due to the increased installation cost of the second meter.
The company could not estimate the installation costs, which it said would be paid by the airlines.