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

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

The concentrating solar power  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 CSP 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.

Arizona has set a goal of 15 percent renewable energy by 2025, said Steven Gotfried, a spokesman for Arizona Public Service, and Solana will produce about 3 percent of what the utility sells.

In California, BrightSource Energy, the company behind Ivanpah, is planning to install storage on future projects, said Joseph F. Desmond, senior vice president of marketing.


www.nytimes.com/2013/10/18/business/energy-environment/arizona-utility-tries-storing-solar-energy-for-use-in-the-dark.html

www.nytimes.com/interactive/2013/10/18/business/Storing-Solar-Energy.html