UPDATE 2-New York official opposes Entergy's spinoff plan

(Changes story attribution, adds details from filing)

NEW YORK, April 11 (Reuters) - New York's attorney general has asked the state power regulator to block Entergy Corp's (ETR.N) plan to spin off five of its nuclear power stations, saying the new company would have too much debt and was not in the public interest.

In November Entergy announced plans to transfer the five stations to a new publicly traded company, hoping to capitalize on the plants' low operating costs and carbon-free emissions.

In a filing with New York regulators, Attorney General Andrew Cuomo said Entergy's plan for the new nuclear company to borrow up to $6.5 billion, and lack of access to the parent company's financial resources, would force it to rely on funds from "riskier sources."

"Neither the reorganization nor the borrowing is in the public interest," Cuomo said in a filing with the New York state Public Service Commission.

Entergy's request for the separation also lacks the detailed financial information the state would need to approve the split, and the company has wrongly asserted that its move does not require an environmental review, Cuomo said in the filing.

An Entergy spokeswoman said the company believed the spinoff made sense and was confident it would be completed in the third quarter of 2008. (Reporting by Matt Daily and Aarthi Sivaraman; Editing by Erica Billingham and John Wallace)