Sept 15 (Reuters) - Alterra Power Corp AXY.TO
* Alterra power announces $133 million refinancing at hs orka
* Alterra power corp - new loan, provided by arion bank, carries initial term of five years with options for hs orka to extend loan's term up to 18 years
* Alterra power corp - loan will be secured by assets of hs orka and is non-recourse to alterra
* Alterra power corp - new loan will also enable increased dividends to alterra and hs orka's other shareholders beginning in 2019
* Alterra power corp - primary uses of loan proceeds include construction of 9.9 mw brúarvirkjun hydro project, among others