abababa Posted February 16, 2015 Report Share Posted February 16, 2015 So I have a Standard 3 phase finishing machine wired into my next door neighbours shop as i don’t have 3 phase in here. It's metered and the last meter reading was in approx September/ October time and the reading was 35 which i assumed was 350 units for a 2/3 months usage. So today the reading is 80, which i assume is 800 units ... so that would mean that i have used 450 units of electricity over the last period of 4/5 months... Working this out at about 0.17p per unit plus vat that equals approx £90.00. The finisher is on for, on average, about half an hour per day... 6 days a week (some days it isnt switched on at all and some days i can be working a couple of hours on it. My question is, do these figures seem right? Per day (minus Sunday’s) that would work out at about 4 units of electric per day for having the machine on for about 30 minutes.. Thanks in advance Quote Link to comment Share on other sites More sharing options...
k4mrc Posted February 16, 2015 Report Share Posted February 16, 2015 So I have a Standard 3 phase finishing machine wired into my next door neighbours shop as i don’t have 3 phase in here. It's metered and the last meter reading was in approx September/ October time and the reading was 35 which i assumed was 350 units for a 2/3 months usage. So today the reading is 80, which i assume is 800 units ... so that would mean that i have used 450 units of electricity over the last period of 4/5 months... Working this out at about 0.17p per unit plus vat that equals approx £90.00. The finisher is on for, on average, about half an hour per day... 6 days a week (some days it isnt switched on at all and some days i can be working a couple of hours on it. My question is, do these figures seem right? Per day (minus Sunday’s) that would work out at about 4 units of electric per day for having the machine on for about 30 minutes.. Thanks in advance I have 3 phase and have had for some 25 years, it is as cheap as chips DO NOT change to single phase as a couple of friends in this trade I know have 'Silly' electric bills and would be better off by at least £300-00 a quarter if they could change abababa 1 Quote Link to comment Share on other sites More sharing options...
abababa Posted February 16, 2015 Author Report Share Posted February 16, 2015 Thanks for the reply... So i have just spoke to the spark that installed the meter and he told me that 80 on the meter means 80 units of electricity ... Is this possible?... Can 3 phase be THAT cheap? Thats means its costing about 0.07 - 0.08 p per day for about half an hours use? (half a unit of electricity?) Quote Link to comment Share on other sites More sharing options...
k4mrc Posted February 16, 2015 Report Share Posted February 16, 2015 Thanks for the reply... So i have just spoke to the spark that installed the meter and he told me that 80 on the meter means 80 units of electricity ... Is this possible?... Can 3 phase be THAT cheap? Thats means its costing about 0.07 - 0.08 p per day for about half an hours use? (half a unit of electricity?) a Big YES! Quote Link to comment Share on other sites More sharing options...
elfman Posted February 16, 2015 Report Share Posted February 16, 2015 is that the reading from one meter or is it the total from all three meters becouse each live feed should have its own meter Quote Link to comment Share on other sites More sharing options...
petercoulson Posted February 16, 2015 Report Share Posted February 16, 2015 I agree with k4mrc yes it is that cheap, and I believe more modern meters are all in one now not 3 separate ones. Quote Link to comment Share on other sites More sharing options...
abababa Posted February 16, 2015 Author Report Share Posted February 16, 2015 Hi guys... Thanks for the replies Its one meter. It's a modern meter (a year old) so it would take into account all the feeds? (is there any way to double check this?) The electrician who installed it said that it's definitely working correctly. Im just looking at energy costs in general https://blog.npower.com/2013/02/ever-wondered-how-much-your-appliances-cost-to-run/ ... and am struggling to reconcile how this could only be using 9p of electricity every half hour. That being said, I would love it to be the case! Quote Link to comment Share on other sites More sharing options...
petercoulson Posted February 16, 2015 Report Share Posted February 16, 2015 Yes the meter will cover all 3 phases, to put into context your finisher with all motors running would run at about 4-6 amps roughly the same as a domestic iron and that would be if you left it running for the full hour. 3ph electric is normally cheaper supply as well so you may be close with your estimate Quote Link to comment Share on other sites More sharing options...
Mick Friend Posted February 16, 2015 Report Share Posted February 16, 2015 can you not check with the energy supplier? it must show up on the bill? Quote Link to comment Share on other sites More sharing options...
k4mrc Posted February 16, 2015 Report Share Posted February 16, 2015 can you not check with the energy supplier? it must show up on the bill? Not these days, just numbers of units used. Quote Link to comment Share on other sites More sharing options...
abababa Posted February 16, 2015 Author Report Share Posted February 16, 2015 thanks - petercoulson RE - Mick Friend - the electric bill is the complete bill for the shop next door, im just using the 3 phase connection for the finisher which is metered separately. This meter was installed by an independent electrician. Quote Link to comment Share on other sites More sharing options...
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