(EnergyAsia, April 19) — Huaneng Power International Inc said it has signed an agreement to allow Huaneng Group to manage Sichuan Huaneng Hydro Power Development Limited Liability Company for a fee of RMB2.42 million. Huaneng Power International will pay 60% of the fee reflecting its equity stake in Sichuan Hydro Power.   Huaneng had bought…