Arizona Experiments With Storing Solar Power

Large solar panels are seen in a solar power plant in Hami, northwest China's Xinjiang Uygur Autonomous Region on May 8, 2013. The EU executive on May 8 proposed heavy anti-dumping tariffs of around 47 percent on imports of Chinese solar panels, a European Union source said. 
National Journal
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Clare Foran
Oct. 18, 2013, 3:42 a.m.

Ari­zona Pub­lic Ser­vice, the largest elec­tric util­ity com­pany in the state, is in­vest­ing in a pro­ject called So­lana to col­lect and store sol­ar en­ergy as heat rather than elec­tri­city, The New York Times re­ports.

The pro­ject, which so far has proved suc­cess­ful in stor­ing and re­dis­trib­ut­ing sol­ar power to the elec­tric grid, could of­fer a path for­ward to de­vel­op cost-ef­fect­ive ways to re­use en­ergy gen­er­ated by the sun. The So­lana pro­ject cost $2 bil­lion to get off the ground and be­nefited from a $1.45 bil­lion loan guar­an­tee from the En­ergy De­part­ment.

“There will be a trend to­ward stor­age as we see more vari­able re­new­ables like photo­vol­ta­ics and wind be­ing ad­ded to the grid,” said Cara S. Libby, the pro­ject man­ager for sol­ar re­search at the Elec­tric Power Re­search In­sti­tute, a non­profit fo­cused on re­search­ing elec­tric-power and util­it­ies com­pan­ies.

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