E&G ELECTRICAL INNOVATIONS just installed a power usage monitor called Sense. Will give very accurate kW usage of each device after it learns from normal usage, of each device, as it being used. This device I find useful as a electrician when in need of troubleshooting an appliance that may be dragging down a PV solar SYSTEM performance or a breaker that continuously trips and looking for cause. Reports in Real-Time on Sense App when connected to dwelling WiFi signal. Device at a reasonable purchase price too.