Concentrated solar power

Gristmill has a link to an announcement that Lockheed-Martin will be joining the solar game by building a large concentrated solar power plant with thermal storage in Arizona:

What is the best evidence that concentrated solar thermal power (CSP) aka solar baseload is indeed a core climate solution with big near-term -- and very big medium-term -- promise?  One of the country’s biggest companies, Lockheed-Martin, with 2008 sales of $42.7 billion, has jumped into the race to build the biggest CSP plant with thermal storage.