We were requested to build a system that could perform verification tests on high-power mission subsystems concerning their electrical and thermal energy specifications. This helps the MinDef act as a smart buyer, smart specifier for energy & cooling systems and drawing up specifications for – off-the-shelf as well as tailor-made – components in system designs. We created a measurement tool that can generate very high cooling or heating power using a reversible heat pump in a fully optimized heat-exchange fluid loop. Also, the system can supply and measure AC and DC electrical power. The complete testbed is housed in a 20-foot container, which facilitates field operation. It can be used to generate and measure the electrical and cooling energy supply, and test equipment to verify suppliers’  specification sheet data.