Sept 23 (Reuters) - Oil Search Ltd OSH.AX :
* Says signed a statement of intent with government-owned png power limited(ppl) on the next phases of the ramu power project
* Says rpp is aimed at connecting up to one million people to a larger and improved electricity grid by 2030
* Says development will be phased in two x 15 mw units, to match supply with demand
* Says Oil Search will extend the provision of diesel to ppl's power plant in tari, which commenced in March 2015
* Source text for Eikon ID:nASX5FDWPC