entergy new orleans , inc . management 2019s financial discussion and analysis also in addition to the contractual obligations , entergy new orleans has $ 53.7 million of unrecognized tax benefits and interest net of unused tax attributes and payments for which the timing of payments beyond 12 months cannot be reasonably estimated due to uncertainties in the timing of effective settlement of tax positions . see note 3 to the financial statements for additional information regarding unrecognized tax benefits . the planned capital investment estimate for entergy new orleans reflects capital required to support existing business . the estimated capital expenditures are subject to periodic review and modification and may vary based on the ongoing effects of regulatory constraints , environmental compliance , market volatility , economic trends , changes in project plans , and the ability to access capital . management provides more information on long-term debt and preferred stock maturities in notes 5 and 6 and to the financial statements . as an indirect , wholly-owned subsidiary of entergy corporation , entergy new orleans pays dividends from its earnings at a percentage determined monthly . entergy new orleans 2019s long-term debt indentures contain restrictions on the payment of cash dividends or other distributions on its common and preferred stock . sources of capital entergy new orleans 2019s sources to meet its capital requirements include : internally generated funds ; cash on hand ; and debt and preferred stock issuances . entergy new orleans may refinance , redeem , or otherwise retire debt and preferred stock prior to maturity , to the extent market conditions and interest and dividend rates are favorable . entergy new orleans 2019s receivables from the money pool were as follows as of december 31 for each of the following years: .
by what amount did the receivables from the money pool differ between 2010 and 2011?
see note 4 to the financial statements for a description of the money pool . entergy new orleans has obtained short-term borrowing authorization from the ferc under which it may borrow through october 2013 , up to the aggregate amount , at any one time outstanding , of $ 100 million . see note 4 to the financial statements for further discussion of entergy new orleans 2019s short-term borrowing limits . the long-term securities issuances of entergy new orleans are limited to amounts authorized by the city council , and the current authorization extends through july 2012 . entergy louisiana 2019s ninemile point unit 6 self-build project in june 2011 , entergy louisiana filed with the lpsc an application seeking certification that the public necessity and convenience would be served by entergy louisiana 2019s construction of a combined-cycle gas turbine generating facility ( ninemile 6 ) at its existing ninemile point electric generating station . ninemile 6 will be a nominally-sized 550 mw unit that is estimated to cost approximately $ 721 million to construct , excluding interconnection and transmission upgrades . entergy gulf states louisiana joined in the application , seeking certification of its purchase under a life-of-unit power purchase agreement of up to 35% ( 35 % ) of the capacity and energy generated by ninemile 6 . the ninemile 6 capacity and energy is proposed to be allocated 55% ( 55 % ) to entergy louisiana , 25% ( 25 % ) to entergy gulf states louisiana , and 20% ( 20 % ) to entergy new orleans . in february 2012 the city council passed a resolution authorizing entergy new orleans to purchase 20% ( 20 % ) of the ninemile 6 energy and capacity . if approvals are obtained from the lpsc and other permitting agencies , ninemile 6 construction is .