What organization is a government-owned corporation that manages power sector assets?

PSALM Corp. is the correct answer because it is a government-owned corporation established in the Philippines specifically to manage the country's power sector assets. Its main responsibilities include the privatization of the assets of the National Power Corporation, the management of the electric power industry, and ensuring that these assets are utilized efficiently and effectively for the benefit of consumers.

This organization plays a crucial role in the transition and restructuring of the power industry, aiming to promote competition and provide better services in the generation and distribution of electricity. By overseeing the management and operation of power assets, PSALM Corp. contributes to the financial sustainability of the power sector while also working towards energy reforms and improvements in power delivery.

In contrast, the other organizations mentioned in the choices have different functions within the power sector. The Department of Energy (DOE) is primarily focused on policy-making, regulation, and strategic planning for energy resources, rather than managing specific assets. The National Telecommunications Commission (NTC) deals with telecommunications regulations, and the Energy Regulatory Commission (ERC) is responsible for the regulation of electricity rates and ensuring fair competition but does not manage power sector assets directly.