Abstract: A device for supplying cold energy, heat energy and electrical energy by efficiently converting renewable deep-space energies includes a solar-energy conversion device, a radiation refrigeration device, a rotary bracket, a dip-angle adjustment component, and a support base. The solar-energy conversion device and the radiation refrigeration device are connected to the rotary bracket in a mutually perpendicular manner, and the rotary bracket is connected to the dip-angle adjustment component which is connected to the support base. The dip-angle adjustment component is configured to adjust a dip angle between the rotary bracket and a horizontal plane, and the rotary bracket is configured to drive the solar-energy conversion device and the radiation refrigeration device to rotate, such that a sunward side of the solar-energy conversion device is always perpendicular to light rays irradiated by the sun, and a reflective surface of the radiation refrigeration device is always parallel to the light rays.

Abstract: A system and a method for comprehensive utilization of renewable energy and waste heat of a data center are provided. The system includes a data center, a water cistern, a water circulating system and a refrigerant circulating system. The water cistern is used to adopt heating capacity of the data center to complete a heat storage process within a set first period, and adopt the heating capacity stored in the heat storage process to supply a heat release process within a set second period. The water circulating system is provided with a plurality of water circulating loops. The refrigerant circulating system is provided with a plurality of circulating systems. The heat storage process and the heat release process are implemented by cooperation of the plurality of water circulating loops and/or the plurality of circulating systems, which may effectively reduce heat costs of users in winter.