Puerto Rico and Whitefish Energy have defended their $300 million contract for the small Montana company to repair the US territory’s hurricane-ravaged power grid after the deal was criticised by US lawmakers.

The back-and-forth comes as Puerto Rico struggles to restore power to more than 80 percent of the island a month after Hurricane Maria made landfall.

Whitefish last month signed a deal with Puerto Rico’s quasi-public power utility, PREPA, to help fix a grid that was nearly destroyed by Maria, the strongest storm to hit Puerto Rico in 90 years.

Whitefish was awarded the deal without a competitive bidding process, and despite the facts that it had just two full-time employees and was established only two years ago. That drew criticism from legislators who suggested cheaper options might have been available.

In a statement on Tuesday, Governor Ricardo Rossello said his administration would review PREPA’s contracting practices and forward findings to the island’s comptroller.

Rossello defended the deal, saying it was necessary to ensure Puerto Rico would have workers in place quickly.

“Of those (contractors) who met the requirements and aggressive schedules to bring brigades, one was asking for a substantial amount of money - which PREPA had no liquidity for - and another did not require it,” Rossello said. “That other one is Whitefish.”

Already in bankruptcy to shed $72 billion of debt, Puerto Rico was in financial straits even before the storm. As the island grapples to get back on its feet, power restoration is a key challenge - and one of keen interest to contractors and lawmakers alike.

Maria cut power to all of Puerto Rico when it made landfall on 20 September. As of Monday, only 18 percent had been restored, according to US Department of Energy data.

Rossello’s comments followed criticism from lawmakers like Democrat Raul Grijalva, the ranking member of the US House Committee on Natural Resources, who said in a statement on Tuesday that “Congress needs to understand why the Whitefish contract was awarded and whether other, more cost-effective options were available.”

In a telephone interview Tuesday evening, Whitefish spokesman Ken Luce called the criticism unfounded, saying “Washington’s got it backwards.”

US lawmakers should be admiring Whitefish for getting up and running quickly, “while the US government was still assessing what to do,” Luce said in a telephone interview.

The firm has been working in Puerto Rico since 2 October, Luce added.

Whitefish, named for its hometown of Whitefish, Montana, has hired dozens of workers, largely through subcontracts, as it ramps up operations in Puerto Rico.

Meanwhile, the Department of Defence said on Tuesday the US Army Corps of Engineers has awarded a similar power grid repair contract to a subsidiary of Fluor Corp.

Greenville, South Carolina-based Fluor Enterprises Inc beat out another undisclosed bidder for a $240 million construction contract set to run through next April, the DOD said in a statement.

Others working on power restoration include JEA, a Jacksonville, Florida-based utility, and representatives from the New York Power Authority.

Bringing aid to Puerto Rico Show all 20 1 /20 Bringing aid to Puerto Rico Bringing aid to Puerto Rico Crew chief Kenney shelters under the blade of an HH-60 Blackhawk helicopter from 101st Airborne Division's "Dustoff" unit preparing to take off during recovery efforts following Hurricane Maria, in Isla Grande, Puerto Rico, October 6, 2017 Reuters/Lucas Jackson Bringing aid to Puerto Rico An HH-60 Blackhawk helicopter from 101st Airborne Division's "Dustoff" unit takes off behind Crew Chief Alexander Blake and his fellow soldiers during recovery efforts following Hurricane Maria, in Morovis, October 5, 2017 Reuters/Lucas Jackson Bringing aid to Puerto Rico Crew member Bynum stands in tropical rain as a HH-60 Blackhawk helicopter from 101st Airborne Division's "Dustoff" unit prepares to take off during recovery efforts following Hurricane Maria, in Isla Grande, October 6, 2017 Reuters/Lucas Jackson Bringing aid to Puerto Rico UH-60 Blackhawk helicopter pilot Chris Greenway receives a hug from a woman thanking him for water as he works with the First Armored Division's Combat Aviation Brigade during recovery efforts following Hurricane Maria, in Verde de Comerio, October 7, 2017 Reuters/Lucas Jackson Bringing aid to Puerto Rico A man carries a case of water away from an HH-60 Blackhawk helicopter after soldiers working with 101st Airborne Division's "Dustoff" unit dropped off relief supplies during recovery efforts following Hurricane Maria, in Jayuya, October 5, 2017 Reuters/Lucas Jackson Bringing aid to Puerto Rico Crew chief Alexander Blake from 101st Airborne Division's "Dustoff" unit loads water into a helicopter during recovery efforts following Hurricane Maria, in Isla Grande, October 5, 2017 Reuters/Lucas Jackson Bringing aid to Puerto Rico Residents wait for soldiers in UH-60 Blackhawk helicopters from the First Armored Division's Combat Aviation Brigade to deliver food and water during recovery efforts following Hurricane Maria, in San Lorenzo Reuters Bringing aid to Puerto Rico An HH-60 Blackhawk helicopter from 101st Airborne Division's "Dustoff" unit lands in a field to avoid lightning during recovery efforts following Hurricane Maria, in Manati, October 5, 2017 Reuters/Lucas Jackson Bringing aid to Puerto Rico Residents hold their hands aloft to signal that they need water as UH-60 Blackhawk helicopters from the First Armored Division's Combat Aviation Brigade fly past during recovery efforts following Hurricane Maria, near Ciales, October 7, 2017 Reuters/Lucas Jackson Bringing aid to Puerto Rico Tropical rain splashes on a runway as HH-60 Blackhawk helicopters from 101st Airborne Division's "Dustoff" unit wait for weather to clear during recovery efforts following Hurricane Maria, in Isla Grande, October 6, 2017 Reuters/Lucas Jackson Bringing aid to Puerto Rico Pilot Eldwin Bocanegra Torres speaks with residents isolated by landslides in the mountains after unloading water and food from a helicopter during recovery efforts following Hurricane Maria, near Utuado, October 10, 2017 Reuters/Lucas Jackson Bringing aid to Puerto Rico Residents stand in front of wind-damaged trees as they wait for soldiers in UH-60 Blackhawk helicopters from the First Armored Division's Combat Aviation Brigade to deliver food and water during recovery efforts following Hurricane Maria, in San Lorenzo, October 7, 2017 Reuters/Lucas Jackson Bringing aid to Puerto Rico The contents of a home are seen from the air during recovery efforts following Hurricane Maria near Utuado, October 10, 2017 Reuters/Lucas Jackson Bringing aid to Puerto Rico Thomas looks out of the window of an HH-60 Blackhawk helicopter from 101st Airborne Division's "Dustoff" unit, loaded with relief supplies, during recovery efforts following Hurricane Maria in Isla Grande, October 6, 2017 Reuters/Lucas Jackson Bringing aid to Puerto Rico A message written on the rooftop is seen from the air during recovery efforts following Hurricane Maria near Humacao, October 10, 2017 Reuters/Lucas Jackson Bringing aid to Puerto Rico A HH-60 Blackhawk helicopter from 101st Airborne Division's "Dustoff" unit lands in a field during recovery efforts following Hurricane Maria in San Sebastian, October 6, 2017 Reuters/Lucas Jackson Bringing aid to Puerto Rico Sergeant First Class Eladio Tirado, who is from Puerto Rico, looks for a landing spot for a UH-60 Blackhawk helicopter from the First Armored Division's Combat Aviation Brigade, during recovery efforts following Hurricane Maria near Ciales, October 7, 2017 Reuters/Lucas Jackson Bringing aid to Puerto Rico Boys carry water away from an HH-60 Blackhawk helicopter after soldiers working with the U.S. Army's 101st Airborne Division's "Dustoff" unit dropped off relief supplies during recovery efforts following Hurricane Maria, in Jayuya, October 5, 2017 Reuters/Lucas Jackson Bringing aid to Puerto Rico Sergeant First Class Eladio Tirado from the First Armored Division's Combat Aviation Brigade, who is from Puerto Rico, speaks with residents as he helps during recovery efforts following Hurricane Maria, in San Lorenzo, October 7, 2017 Reuters/Lucas Jackson Bringing aid to Puerto Rico Residents peek through a fence at helicopters from 101st Airborne Division's "Dustoff" unit that had parked in a locked field during recovery efforts following Hurricane Maria, in Lares, October 6, 2017 Reuters/Lucas Jackson

Fixing Puerto Rico’s power grid is an enormous task. Maria would have seriously damaged a healthy grid, but Puerto Rico’s was hanging by a thread after years without maintenance. PREPA has struggled with heavy management turnover and a $9 billion debt load, which landed it in bankruptcy in July.

PREPA has set aggressive goals for fixes, saying it wants 95 percent of power back by mid-December, a schedule viewed as ambitious.