Company wants to overturn recently passed resolution setting electric and gas rates for the city.
The outages cost New Orleans customers upwards of $100,000 a day, according to Entergy.
Entergy threatened to bring litigation against the city or try to change the profit rate again next year, which would cost customers an additional $7 million in regulatory costs, the company claimed.
Last week, Mayor Cantrell sided with Entergy over the City Council, saying the company should be allowed to collect a greater profit from customers.
Coalition that includes the city among its members still supports lower rate of profit for utility, despite the mayor's recent support for Entergy.
A proposed $1 million against the company also moves on to the full council.
Outages in New Orleans became more frequent in the years following Entergy's disinvestment in maintenance and system upgrades.
The report cited “the unique vulnerability of New Orleans to the devastating consequences of climate change and the urgent need for decarbonization to prevent dangerous levels of global warming.”
The company is pushing a new rate plan with a PR campaign, called “Path to Progress.”
Organization’s analysis says built-in profits, debt payments could add up to $240 million to $280 million. Entergy New Orleans disputes the figures, but does not offer specifics.