Early in the 1950s, Tabor began to examine why solar installations were inefficient.

"You can't cost-justify a solar installation right now," he said.

In 1991, a new 72-collector solar installation was completed in Kabul at a cost of $364 million.

Another solar installation has been helping to provide hot water.

The state has more than 10,000 solar installations.

Almost every town and city in Massachusetts has a solar installation within its boundaries.

During 2009 the amount of solar installations quadrupled from 16,000 to 65,000.

They completed the world's largest corporate solar installation at Google's headquarters in 2006.

When games are not taking place, the solar installations at the stadia will export energy onto the power grid.

Salt River Project has run out of money again for solar installations, and this time it is dropping its large commercial program.