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Performance and efficiency of off-grid appliances with power converters: Phase 2 - Testing of multiple appliances and an inverter compressor refrigerator

This report summarises the findings of laboratory tests that were conducted to provide a better understanding of the efficiency, performance and costs of common use cases of power supply and appliance types in off- and weak-grid areas.

The testing conducted was split into two phases. Phase 1 tests aimed to assess the performance and cost of ownership and operation for single AC- and DC-rated appliances, operated outside of their native modes for different use cases. Testing was conducted on AC and DC refrigerators, fans and TVs. Phase 2 tests built on Phase 1 tests by assessing the performance and costs of multi-appliance systems running on power converters, as well as exploring appliances further at the component level.