Ecofin Water & Power Opportunities : Conversion of Securities

ECOFIN WATER & POWER OPPORTUNITIES PLC(the "Company")

Conversion of CULS

The Company announces that the Directors of the Company have today allotted a total of 23,168 Ordinary Shares in the capital of the Company in connection with an election by holders of the Company's 6% Convertible Unsecured Subordinated Loan Stock 2016 ("Loan Stock") to convert 40,000 nominal Loan Stock into 23,168 Ordinary 0.1p Shares ("Ordinary Shares") in the period to 31 May 2014.

As a result of the above conversion, there are now 209,832,651 Ordinary Shares, 568,409 Treasury Shares and 79,909,563 units of Loan Stock. The Loan Stock does not carry any voting rights. The voting rights attaching to the Ordinary Shares in issue total 209,832,651 votes.

Applications have been made for the new Ordinary Shares to be admitted to the Official List of the UK Listing Authority and for admission to trading on the main market of the London Stock Exchange. Dealings are expected to commence on or around 9 June 2014. The new Ordinary Shares will rank, pari passu, with the existing Ordinary Shares of the Company.

BNP Paribas Secretarial Services Limited

Company Secretary

3 JUNE 2014