While adopting clean and diverse forms of renewable energy is the right step, it can lead to a less robust power grid, says Alvin Chew of the S Rajaratnam School of International Studies. SINGPORE: On Apr 28, swaths of Spain and Portugal suffered a power outage that ground life to a standstill. The blackout knocked out communication and transport systems, shut down industries and halted commercial services. Power was only restored ten hours later. The Spanish government ruled out the