SUMMERS: Puerto Rico's public power authority, known as PREPA, used to be in charge of this whole system. And it's my belief that the government should review whether or not to continue with this contract after the emergency response is over. We do need to get the power back up after the storm, so - and they're the only operator we have. Unfortunately, we're kind of stuck with them for now. And they definitely over-promised and have under-delivered. I think they probably underestimated the complexity of the task they were undertaking. MARXUACH: So far, their performance has been below expectations, I would say. SUMMERS: Now, one thing that has changed after Hurricane Maria is LUMA Energy came in as a private operator. We haven't been able to actually get that process going. And there are a lot of factors that have affected that - mostly bureaucratic setbacks both at the federal level and at the Puerto Rico level. MARXUACH: Well, the problem is that once the emergency repairs were done to the system back in 2018, we were supposed to get on with what FEMA calls permanent work to strengthen and make the grid more resilient. And since then, there have been billions of federal dollars allocated to address this issue. This storm comes five years after Hurricane Maria devastated Puerto Rico's power grid. I own a generator, so that's what we have been using since Sunday at 1 p.m. MARXUACH: No, I do not have power in my home. SUMMERS: First, I just want to ask you, how are you doing? Do you have power right now? He is the public policy director at the Center for a New Economy - that's a think tank based in Puerto Rico - and he joins us now from San Juan. And many Puerto Ricans are pointing fingers at the private entity which took over the grid last summer. Five years after Hurricane Maria left many residents without electricity for nearly a year, the power supply remained unreliable and prone to blackouts in any weather. But Puerto Rico's grid was already fragile. Puerto Rico faces another one after Hurricane Fiona knocked out all power on the island this weekend.

A black start is the process of restoring an electric grid from a shutdown.

Puerto rico power grid map