Fiona hit Puerto Rico on Sept 18, about five years after Hurricane Maria also knocked out all power on the island.

After hitting Puerto Rico and the Dominican Republic, Fiona turned north and slammed into eastern Canada on Sept 24, leaving more than a third of Nova Scotia without power.

Nova Scotia Power, a unit of Canadian energy company Emera Inc, said about 24,500 customers were still without power in the province early today, down from about 59,900 early Friday.

PowerOutage.us said about 120,000 customers were without service in Puerto Rico today, down from around 233,000 on Friday, based on information from Luma Energy, which operates its grid.

That pace of restoration – though slow – was much faster than after Maria when almost all 1.5 million customers had no power for a week.

At that time the now bankrupt Puerto Rico Electric Power Authority (Prepa) was still operating the grid.

It took Prepa about 11 months to restore power to all customers, but Maria was a much more powerful storm than Fiona.

Maria hit Puerto Rico in 2017 as a Category 4 hurricane with winds of 249kph, while Fiona hit as a Category 1 storm with winds of 137kph.

Luma Energy said it restored service to 1.350 million, or about 92% of all customers by late yesterday and expects to restore service to 90% of customers in the hardest hit areas by Oct 6 so long as sufficient generation is available.

Luma is a joint venture owned by units of Canadian energy firm Atco Ltd (50%) and US energy contractor Quanta Services Inc (50%).