For my ac (1HP, Masterbed room) I tend to use 25C or 26C at fan speed 1. The pic below is 26C at fan speed 1.

Compressor ON:
Observed range from 600-800+ watts

Compressor OFF
7W




All my rooms have no fan installed. Hence the need to control AC usage. I set all either to 25 if too hot, or 26 if colder weather like now. Total monthly usage shown in pic also.

This post has been edited by bismaximus: Sep 23 2023, 10:03 AM

This one Tuya (paired with the Tuya 20A Wifi switches), also connected to home assistant.

For me personally, I spend about RM 45 - RM 60 per switch (Some Wifi,.some ZigBee). Some plug points also changed to ZigBee capable ones (about that range).

Small sensors like door sensors, motion sensors all between 20+-100+

Smart capable lights are pretty affordable, yeelight bulbs or Ikea ZigBee capable bulbs are sub RM100. But some can be up to 300-400 also. Depends on needs and use case.

If you plan to use something like home assistant, a small server running 24/7 is needed. A raspberry pi (the recommended route) or a mini PC will do. Brands like sonoff also have their own hub, but many would be against going with a specific brand of applicances for everything. Expect to spend RM 200-500 depending on wants and needs.

Overall will definitely spend double or triple compared to standard dumb equipment.