Multi-temperature heat collection system

A thermal energy collector, comprising

• A. a radiator system including
• i. a multi-wall panel, an interior of which is in fluid coupling with, and that forms part of, a fluid circuit through which flows one or more heat transfer fluids carrying thermal energy from one or more heat sources downstream of the radiator system,
• ii. each of a first face of the multi-wall panel and a second face of the multi-wall panel being substantially transparent in a visible spectrum and an infrared spectrum and radiating thermal energy from the heat transfer fluid into an ambient environment as that fluid flows through the multi-wall panel, the first face of the multi-wall panel passing sunlight, if any, to the heat transfer fluid, the second face of the multi-wall panel passing sunlight, if any, not absorbed by the heat transfer fluid via to a reflective surface disposed in a vicinity of a second face of the multi-wall panel,
• iii. the reflective surface reflecting thermal energy radiated into the ambient environment via the second face back toward the multi-wall panel,
• B. wherein
• i. the multi-wall panel is a first solar collector through which one or more of said heat transfer fluids flows to absorb energy from sunlight passing through the panel,
• ii. the fluid circuit being thermally coupled to one or more of the heat sources, the fluid circuit being operable to direct a said heat transfer fluid so as to dissipate heat from those one or more heat sources via the first solar collector,
• C. wherein the reflective surface prevents thermal energy contained within and/or passing through the first solar collector from warming that over which the first solar collector is disposed,
• D. wherein the reflective surface forms part of a second solar collector.