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Renewables: "talking 'bout my generation"
Comments
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Best day of the year today.....and worst;) Made 0.3 O's:D16 Sanyo Hit 250s.4kWp SMA 3.8kWp inverter. SW roof. 28° pitch. Minimal shade. Nov 2011 install. Hybrid car. Ripple Kirk Hill. N.E Lincs Coast.0
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Hmm, according to my bills its actually
GAS UNITS USED X 2.83 X CALORIFIC VALUE (39.5) X VOLUME CORRECTION (1.02264) ÷
3.6
New Gov. Guide Line leave off: for two days a week...:beer::beer:..Okay, don't know if you have a metric meter or not but.... Quote EoN Bill: "•56 units x 1.02264 (conversion factor) x 39.7 (calorific value) ÷ 3.6 (to get kilowatt hours) = 632 kWh• " Pick the God-damn bones out of that....:rotfl: The conversion factor of 2.83 seems wrong; but the calorific value for your area may well be 39.5.
Baaadd start to '16....0.36 O's...
...
For interest maybe: https://www.ukpower.co.uk/home_energy/gas_meter_readings2.5 kWp PV system, SSW facing, 45 Deg Roof. ABB Inverter, Monitor: 'Wattson'.
Reg. for FIT Nov 2011. "It's not what you generate; it's how you use it that matters". One very clean Vauxhall Diesel Sri, £30.00 Road Tax:
Definition of 'O's = kWh/kWp (kWh = your daily & accurate Generation figure) (kWp = the rated output of your PV Panels).0 -
Or should that have been 21.3 units, not 213?
Nope, 213 units. The bill has now been processed on line and it says:213 = 2,372kWh
GAS UNITS USED X CALORIFIC VALUE (39.2) X VOLUME CORRECTION (1.02264) ÷ 3.6
In fairness I did post ~2,300 (not 2,343) but that was deliberate as it was just an estimate, and 2,343 might have appeared to be an exact number, which I didn't have. But comparing 2,343 est to 2,373 actual seems to show that my quick cheat of x11 works fine. TBH I thought everyone used x11, I'm sure I picked it up of a forum chat years ago.
Mart.Mart. Cardiff. 8.72 kWp PV systems (2.12 SSW 4.6 ESE & 2.0 WNW). 20kWh battery storage. Two A2A units for cleaner heating. Two BEV's for cleaner driving.
For general PV advice please see the PV FAQ thread on the Green & Ethical Board.0 -
Have you ever had your meter changed? One of my rental properties has an original cubic feet meter still(gas safe installer was gobsmacked as they're supposed to be changed at most every 20 years(apparently)), that may explain it.
Hiya T, my meter hasn't been changed since we moved in (18 years ago) but it is a metric meter measuring in m3. Presumably you have an imperial meter that measures in 100ft3.
Since 100ft3 is 2.83 times bigger than 1m3, that explains why your units have to be multiplied by an additional 2.83 to work out the kWh.
Effectively a unit on your dial is 2.83 times more gas than a unit on mine. IYSWIM.
Edit, quick maths check:-By the way, is that per quarter? mine was only 107 units for the quart and 333 units(about 10500kWh) for the year.
333 x 11 x 2.83 = 10,366 ...... close enough!
Mart.Mart. Cardiff. 8.72 kWp PV systems (2.12 SSW 4.6 ESE & 2.0 WNW). 20kWh battery storage. Two A2A units for cleaner heating. Two BEV's for cleaner driving.
For general PV advice please see the PV FAQ thread on the Green & Ethical Board.0 -
IMPORTANT
Just remembered, a few years ago it was revealed that a lot of households that had had imperial meters changed to metric meters hadn't had their bill calculations revised.
That meant that they were still being multiplied by 2.83, and thereby paying 3 times too much for their gas. So worth checking your bill and meter if you think it's way too high.
A metric meter is obvious as it has a big m3 on the front, and an imperial meter should display ft3 on the front somewhere, probably under the 'hundreds' dial.
Mart.Mart. Cardiff. 8.72 kWp PV systems (2.12 SSW 4.6 ESE & 2.0 WNW). 20kWh battery storage. Two A2A units for cleaner heating. Two BEV's for cleaner driving.
For general PV advice please see the PV FAQ thread on the Green & Ethical Board.0 -
Martyn1981 wrote: »IMPORTANT
Just remembered, a few years ago it was revealed that a lot of households that had had imperial meters changed to metric meters hadn't had their bill calculations revised.
That meant that they were still being multiplied by 2.83, and thereby paying 3 times too much for their gas. So worth checking your bill and meter if you think it's way too high.
A metric meter is obvious as it has a big m3 on the front, and an imperial meter should display ft3 on the front somewhere, probably under the 'hundreds' dial.
Mart.Oscargrouch wrote: »
As per previous; "for interest".........And to kill it even further.....https://forums.moneysavingexpert.com/discussion/891033....:rotfl: How strange is all this.....:D 2.5 kWp PV system, SSW facing, 45 Deg Roof. ABB Inverter, Monitor: 'Wattson'.
Reg. for FIT Nov 2011. "It's not what you generate; it's how you use it that matters". One very clean Vauxhall Diesel Sri, £30.00 Road Tax:
Definition of 'O's = kWh/kWp (kWh = your daily & accurate Generation figure) (kWp = the rated output of your PV Panels).0 -
This got me thinking last night and just had to check the meter before going off to the land of zzzzzzzz's. My meter is indeed cubic feet...0
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Perhaps you need to check your conversion calculation on your recent Bill. If it does not involve a X 2.83; say nowt. However, the correct formula appears to be ft3 x 0.0283168466 = m3... http://www.checkyourmath.com/convert/volume/cubic_volume/feet_m.phpThis got me thinking last night and just had to check the meter before going off to the land of zzzzzzzz's. My meter is indeed cubic feet...
This gets more interesting by the day......
Disaster here, yet again; 0.16 O's... 2.5 kWp PV system, SSW facing, 45 Deg Roof. ABB Inverter, Monitor: 'Wattson'.
Reg. for FIT Nov 2011. "It's not what you generate; it's how you use it that matters". One very clean Vauxhall Diesel Sri, £30.00 Road Tax:
Definition of 'O's = kWh/kWp (kWh = your daily & accurate Generation figure) (kWp = the rated output of your PV Panels).0 -
Dark and dismal here = 0.2 O's today:D16 Sanyo Hit 250s.4kWp SMA 3.8kWp inverter. SW roof. 28° pitch. Minimal shade. Nov 2011 install. Hybrid car. Ripple Kirk Hill. N.E Lincs Coast.0
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0.3 Os today.4kWp, South facing, 16 x phono solar panels, Solis inverter, Lincolnshire.0
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