ACEN Corp (<a href="https://edge.pse.com.ph/companyPage/stockData.do?cmpy_id=233" target="_blank">PSE:ACEN</a>), the renewable energy arm of the Philippines' Ayala, has struck a deal to buy a 25% stake in Copenhagen Infrastructure Partners’ (CIP) up to 1-GW Camarines Sur offshore wind project in the Philippines.