Watch this video to find out what causes our system to overload, and what those red and yellow alerts actually mean for you

MANILA, Philippines – Ever wondered why the power grid fails exactly when we need our air conditioners and electric fans the most?

It’s not just about the soaring temperatures. It actually comes down to how our coal-fired power plants operate and why they struggle to keep up with the massive spike in energy demand.

Watch this video to find out what causes our system to overload, and what those red and yellow alerts actually mean for you. – Rappler.com

This story was done in collaboration with the Institute for Climate and Sustainable Cities.