This is a continuation from this thread posted about 1.5 years ago...
https://www.geekzone.co.nz/forums.asp?forumid=141&topicid=214778
There seems to be a lot of competition around power companies, a lot of price changes, special deals to rope you in, so I guess a lot can happen over a year hence why a new post. I'm curious to see what peoples thoughts are about: 1. how much power you use monthly 2. what you've done to help reduce usage (besides obvious LED lighting swap outs or similar), 3. consideration of solar or if you have it, how you find it and 4. what automated solutions and/or 3rd party devices you have utilised to make power usage more efficient.
I'm with Contact Energy at present, moved to them from Genesis Energy about a year ago. Under a contract, but once off it will move again. I did get a reduction in cost when I moved, but it's still not cheap on the billing front. Our house is 200sqm+, 2 adults, 3 kids, heat pump, swimming and spa pool to heat (large portion of the cost) Heat pump on the pool runs often - obviously less or if at all over the peak of summer, but I am still considering solar at the moment (mates rates, around $12k for 5kW system) I assessed ROI, which worked out to be about ~10 years. We have been in this house for 15 years, but aren't planning on moving for the next 10 years either. I'm aware fixed line costs are a good portion of the power bill and these are likely to continue to increase, as "that's where the moneys at".
Our usage is probably averaging about 1600-1700KWh per month (est. < 1500KWh in summer, highest was a tad over 2000KWh in July) with $400+ monthly power bills.
This is a graph of my power usage over the past 9 months (I basically programmed up a small WEMOS D1 mini (ESP chip) with an LDR that sits in my power box. The power box has an LED that flashes for every 1kW used, so the WEMOS simply counts these flashes and sends the data back every 15 seconds to OpenHAB home automation, the home automation then confirms its received the count and notifies the WEMOS to reset the counter. It's fairly rudimentary, but mapping against my power bills it's pretty accurate)