Detailed Instructions: In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Problem:The head of Puerto Rico’s power authority has resigned amid a scandal over efforts to restore electricity to the hurricane-hit island, its governor announced Friday. 
  
 Governor Ricardo Rossello told a news conference that Ricardo Ramos had resigned as executive director of the Puerto Rico Electric Power Authority to avoid "distractions." 
  
 Rossello defended Ramos’ management but suggested that his resignation was necessary in the midst of the controversy. He did not say whether or not he had asked for his resignation. 
  
 More than half of the population of Puerto Rico is still without electricity nearly two months after Hurricane Maria ravaged the US territory of more than three million people. 
  
 Critics of Ramos have also questioned the decision to award a tiny American firm a $300 million contract to help restore power, a deal that has since been cancelled. ||||| Story highlights Whitefish Energy's contract is up on December 1 
  
 The company says it is stopping work before then because it is owed millions of dollars 
  
 San Juan, Puerto Rico (CNN) Whitefish Energy is stopping its work to restore Puerto Rico's broken electricity grid because the company says it is owed more than $83 million by the island's power authority. 
  
 Whitefish CEO Andy Techmanski told CNN that repeated requests for agreed payments were not met and there was no choice but to suspend work. 
  
 He claimed credit for the restoration of transmission lines by his contractors, even after his company's controversial contract with the Puerto Rico Electric Power Authority (PREPA) was set to be voided. 
  
 "We stopped because of the financial situation, lack of payment with PREPA has gotten beyond its maximum threshold and what we can sustain as a business," he said. 
  
 A letter sent by Whitefish to PREPA and seen by CNN accuses PREPA of delaying payments. As of Sunday, Whitefish said $83,036,305.09 was outstanding, including more than $26 million that it said had been audited and approved by PREPA already. Without payment to Whitefish, contractors and subcontractors were also going unpaid, the letter said. ||||| FILE - In this Oct. 19, 2017 file photo, a brigade from the Electric Power Authority repairs distribution lines damaged by Hurricane Maria in the Cantera community of San Juan, Puerto Rico. Puerto Rico's... (Associated Press) 
  
 FILE - In this Oct. 19, 2017 file photo, a brigade from the Electric Power Authority repairs distribution lines damaged by Hurricane Maria in the Cantera community of San Juan, Puerto Rico. Puerto Rico's... (Associated Press) 
  
 SAN JUAN, Puerto Rico (AP) — Whitefish Energy Holdings said late Monday that it was halting work to help restore power in Puerto Rico because the U.S. territory's government has not paid crews as part of a contract that led to accusations of overcharging and incompetence and contributed to the resignation of the power company director. 
  
 The Montana-based company said in a statement that invoices for work done in October are outstanding and that it can no longer keep working. The Associated Press obtained a letter dated Nov. 19 and signed by Whitefish CEO Andy Techmanski saying that Puerto Rico's government owes Whitefish more than $83 million and that the company would suspend work on Monday if it wasn't paid. 
  
 Whitefish said in the letter that the lack of payments is a breach of the $300 million contract that the administration of Gov. Ricardo Rossello cancelled last month. Even though the contract had been cancelled, both sides agreed Whitefish would complete its current projects and remain in Puerto Rico until Nov. 30. 
  
 "There is no basis for PREPA to withhold payments from Whitefish Energy," the letter said, referring to the Puerto Rico Electric Power Authority. "We have met the terms of the contract — including completing difficult work on time and under challenging conditions." 
  
 The company said Techmanski was not immediately available for comment. 
  
 Whitefish also said Monday that Florida-based utility companies working in Puerto Rico were pulling out ahead of time. 
  
 "While we cannot speak for these utilities, we have been assured by their representatives that this is about their go-forward concerns once Whitefish Energy completes its work with PREPA and the ability of PREPA or any successor organizations to provide their crews with the necessary resources and management," Whitefish said. 
  
 The company said it would resume work if it obtained the payments owed. 
  
 Meanwhile, Puerto Rico's government said in a statement late Monday that Whitefish is alleging nonpayment and that the power utility is reviewing and auditing Whitefish invoices. It also said the Electric Power Authority was forced to stop pending payments "until the situation with the Whitefish subcontractor is clarified." 
  
 Puerto Rico power company spokesman Carlos Monroig told the AP that both sides are in talks to reach an agreement to satisfy everyone involved. 
  
 The dispute comes just days after the resignation of Ricardo Ramos, the power company director who signed the Whitefish contract, which is undergoing a local and federal audit. Documents released by the U.S. House Natural Resources Committee ahead of a recent hearing show the electric utility ignored advice from its own lawyers before signing the contract with Whitefish, which is based in Interior Secretary Ryan Zinke's hometown and had just two employees when Hurricane Maria hit. 
  
 Many people in Puerto Rico remain without power two months after the Category 4 storm devastated the island, killing at least 55 people and causing damage estimated at up to $95 billion. 
  
 More than 20 of Puerto Rico's 78 municipalities remain in the dark, and overall power generation stands below 50 percent. Major blackouts also have hit the capital of San Juan and surrounding areas in recent weeks, for reasons ranging from overgrown vegetation to fuel not being supplied in time because of logistical limitations. 
  
 The hurricane hit as Puerto Rico entered its 11th year in recession and struggles to restructure a portion of its $73 billion public debt load. The power company holds about $9 billion of that debt. ||||| Whitefish Energy company announced that it has decided to stop its work in Puerto Rico after Puerto Rico Energy Power Authority stopped payments, owing the company $83 million. 
  
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 In a statement, the Montana-based company said despite the company’s “diligence and that of its subcontractors” payments under the contract with the island’s bankrupt energy authority have been delayed. Whitefish said that it will not continue any work and will not perform any additional work until PREPA pays for work that has already been completed. 
  
 PREPA confirmed that it had stopped payments to Whitefish Energy after receiving “a communication from one of Whitefish's subcontractors requesting the stoppage of any payment to the company, since it owed the subcontractor money.” 
  
 PREPA added that it is in communication with Whitefish and the subcontractor to resolve the situation. PREPA did not confirm the amount owed to Whitefish. 
  
 PREPA signed a controversial contract with Whitefish Energy, which only has two full-time employees, for $300 million, which was canceled after public backlash. Even though the contract was canceled, the terms of the contract stated Whitefish would work for an additional 30 days and complete its projects. The date of the contract’s completion is Nov. 30. 
  
 Two months after Hurricane Maria slammed into Puerto Rico, only 46.6 percent of the island’s electrical grid has power. Officials on the ground have not given a number of how many homes or businesses are receiving that power. |||||
Solution:
The Montana energy company that set up a controversial, since-canceled contract to help restore Puerto Rico's power after Hurricane Maria had agreed to work through Nov. 30 before heading out. But now it's stopping work altogether, claiming the Puerto Rico Electric Power Authority owes it upward of $83 million, ABC News and the AP report. "We stopped because … lack of payment with (Prepa) has gotten beyond its maximum threshold and what we can sustain as a business," Whitefish CEO Andy Techmanski tells CNN. But Prepa, whose director resigned Friday over the contract scandal, says it's not paying until it can resolve an issue between Whitefish and an unnamed Whitefish subcontractor. Prepa claims it received "a communication" from the subcontractor "requesting the stoppage of any payment" to Whitefish over non-payment to the subcontractor. Only about half of the island's power grid is back online two months after the hurricane, though CNN notes that doesn't mean half of the island's customers are with power. The AP reports that San Juan and nearby areas keep getting hit with blackouts. "It may have not been the best business decision coming to work for a bankrupt island," Techmanski tells CNN, adding that he thought FEMA would help ensure his firm would get paid. He says he hopes the payment can be worked out so that Whitefish can wrap up its work there through the end of November. A Prepa spokesman tells the AP negotiations are now taking place to make sure that happens. Meanwhile, the original Whitefish contract is undergoing both local and federal audits to find out how it came to pass in the first place.