On September 10, 2015, the Puerto Rico Electric Power Authority (PREPA) released a Request for Expressions of Interest (REOI). In the REOI, PREPA encourages private sector companies to indicate their interest and present projects to implement PREPA's modernization initiative. PREPA's objectives are to improve the reliability and increase the flexibility of the generation system, obtain higher efficiency of its generation assets and comply with environmental requirements. Feasible options should be presented for new sources of electric power generation, as well as projects to modernize PREPA's generation facilities. As part of the process, PREPA will share technical information with participants. All interested parties must be registered with PREPA in order to submit their expressions of interest no later than October 26, 2015. Other earlier deadlines must be met by interested parties participating in the REOI.