Some potential sources of clean power look attractive — until you realize how much energy we really need, and the price we’re willing to pay for it. Enter Concentrated Solar Power (CSP), aka Solar Thermal. In this week’s Clean Energy Radio program, host Craig Shields, editor of 2GreenEnergy.com and author of Renewable Energy – Facts and Fantasies, interviews Belen Gallero, direct of CSP Today. Belen presents the subject in an accessible and interesting way.