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Forum Index : Solar : 13 Years Worth....
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| Phil23 Guru  Joined: 27/03/2016 Location: AustraliaPosts: 1664 |
Did this a couple of months back. Still growling at my Secretary for throwing out my old power bills.... Against instruction. Would have been really interesting to see them in here, as it would have dated back to '92. Air-cons were 3 window rattlers back then, no insulation until '96. Major renovations in 2004-5 & again in 2010. 9kW split added to living area in 2006 & 9kW Multi-head (3) in 2010 with heads in 2 offices & the bedroom.  Cheers. Phil. Edit:- Scales are a bit unreadable, Left Axis in Main Meter, Scaled 35-80. Right Axis is Controlled load, Scaled 5-45. Peaks correspond with April issued bills. |
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zaphod Regular Member  Joined: 03/06/2018 Location: United KingdomPosts: 93 |
Hi Phil, amazing amount of data, I only keep my bills for the 7 years required by the tax man :) Can I ask if the vertical scales are Kilowatt hours ? For comparison my annual average electricity consumption here in the cold UK is just 3.2Kwh/day but then I burn lots of Oil and Wood!! Cheers Roger Cheers Roger 1Kwp DIY PV + Woodburner + Rainwater scavanger :) |
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| Phil23 Guru Joined: 27/03/2016 Location: AustraliaPosts: 1664 |
Yes, kWh's with the ranges as above. Last Bill had the averages at 44 & 7.8kWh. Current running average is 34.1 & 10.8. Caught a power thief in the act a few night ago though. Wandered outside at 4:00am to find the pump running on the Spa tub. It's normally heated by home made solar & a converted heat pump. Controlled by a Micro. It's own controls are fairly primitive, you just cycle thru 3 modes with an air switch. Default is standby, where it runs the pump & a 1kW heating element when the water needs heating. Temperature is just set on a pot. As I don't normally used that facility, the pots set at it's minimum. Turn out, after looking at the logged data, that that minimum setting equates to a temp of about 11.5°C. So as winter has it, it's been taking it on it's self to cycle on a few nights. When it hit's that level, it's been running the pump for about an hour & a half, bringing the water back up to 13°. Only happened on 4 nights, but would have totalled a fair few hours. Phil. |
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TassyJim Guru Joined: 07/08/2011 Location: AustraliaPosts: 6098 |
As a comparison, my last bill in chilly Tasmania had an average daily consumption of 21.9kWh (total of general and heating tariffs) That's with all electric (ducted heat pump) heating I have bills going back a long way. I could do a comparison back to before I was married but that would not be a wise thing to do. Jim VK7JH MMedit  MMBasic Help |
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| Phil23 Guru Joined: 27/03/2016 Location: AustraliaPosts: 1664 |
What I do know here is that the power meter on the output of my 1.5kV office UPS constantly sits at about 475W. 2 Xeon Servers & My i7 Desktop with 2 screens. So that accounts for about 11.5kW hours per day. That is covered by solar between about 8:30 & 3:00 ATM, so overall it's probably a bit above 8kWh of the daily average. I decided to move our Water/Gel bed to a solar circuit a weekend ago, Sunday project to add a circuit. It's a dual balder thing with two separate 100W heaters, sits on a Styrofoam base, with like a hollowed out foam mattress around the sides. Figuring I could also cover it's daytime consumption with solar excess. Wasn't a very popular move though, as when I reconnected everything I missed out plugging Mrs C's side back in. No comment after a chilly Sunday night, but come Tuesday morning there was mention of being a bit chilly last night. SO decided to turn her side up a bit & discovered it not plugged in. About 24 hour recovery time & it was back up to temp....  Heating here is wood & recovered heat from the ceiling space. But have also discovered I can run the air con in my office for about 4 hours a day without exceeding my solar capacity. Phil. |
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