[dar-list] Why is it Arizona hasn't gone solar?

[Sally Heaven]

http://www.cnn.com/2008/TECH/02/22/solar.plant.ap/

*PHOENIX, Arizona (AP)* -- A Spanish company is planning to take 3 square
miles of desert southwest of Phoenix and turn them into one of the largest
solar power plants in the world.

Abengoa Solar, which has plants in Spain, northern Africa and other parts of
the U.S., could begin construction as early as next year on the 280-megawatt
plant in Gila Bend -- a small, dusty town 50 miles southeast of Phoenix.

The company said Thursday it could be producing solar energy by 2011.

Abengoa would build, own and operate the $1 billion plant, named the Solana
Generating Station.

Solana will be enough to supply up to 70,000 homes at full capacity.

APS filed for approval of the plant with Arizona's public utilities
regulator Thursday. The plant also hinges on an extension of the federal
solar investment tax credit, which APS and Abengoa said they're confident
will happen.

If approved, the plant will triple the amount of renewable energy APS
produces. Now, about 1= percent of the utility's energy comes from renewable
sources.

Arizona regulators are requiring utilities to get 15 percent of their
electricity from renewable sources by 2025, with annual increases of roughly
1 percent.

The Solana plant will bring APS to around 5 percent in 2011, said Don
Robinson, the utility's senior vice president of planning and
administration.

Unlike most solar energy, Solana will use the sun's heat, not its light, to
produce power. Gila Bend can get as hot as 120 degrees in the summer.

Abengoa CEO Santiago Seage said the plant will use thousands of giant
mirrors to harness the sun's heat. That will heat up liquids, which will
spin turbines -- just like coal or other power plants but without the
pollution.

He said using heat will allow the plant to produce power even after the sun
has gone down.

"We receive the heat from the sun, and we use a fluid that becomes very hot.
And we can keep it hot for a long time and release that heat for a long
time," he said. "It's like coffee. You can make it hot, keep it hot for a
few hours and drink it anytime you want."

Arizona Gov. Janet Napolitano said she envisioned the state as a solar
powerhouse.
"There is no reason that Arizona should not be the Persian Gulf of solar
energy," she said.