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Discrepancy between Meter and Inverter
travellerboy
Posts: 797 Forumite
I have a 1.5% discrepancy between the Generating meter and the Inverter readings. Which is correct - any ones guess !
Is that common to most of you?
Is that common to most of you?
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Comments
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That's nothing unusual at all. The generation meter is guaranteed to be very accurate, but the inverter can be a few percent out. Also, remember the inverter is measuring power at the point where it is generated, the generation meter may be some distance away and would read a little lower if there is any voltage drop in the cable from the inverter to the generation meter.travellerboy wrote: »I have a 1.5% discrepancy between the Generating meter and the Inverter readings. Which is correct - any ones guess !
Is that common to most of you?
Dave FSolar PV System 1: 2.96kWp South+8 degrees. Roof 38 degrees. 'Normal' system
Solar PV System 2: 3.00kWp South-4 degrees. Roof 28 degrees. SolarEdge system
EV car, Evec charger
Lux LXP 3600 ACS + 6 x 2.4kWh Aoboet LFP 2400 battery storage. Installed Feb 2021
Location: Bedfordshire0 -
travellerboy wrote: »I have a 1.5% discrepancy between the Generating meter and the Inverter readings. Which is correct - any ones guess !
Is that common to most of you?
Compared to the TGMs:
My SB2500 is lower by 1%
My SB1200 is lower by 2.5%:)
My SE2200 is over by 1.5%
well, you can't win em all!
Mart.Mart. Cardiff. 8.72 kWp PV systems (2.12 SSW 4.6 ESE & 2.0 WNW). 28kWh 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 -
travellerboy wrote: »I have a 1.5% discrepancy between the Generating meter and the Inverter readings. Which is correct - any ones guess !
Is that common to most of you?
My SMA 3800 is 1% higher than Generation meter readings.
I periodically reset my inverter output to match Gen meter:D
Wish it was the other way round;)16 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 -
Yes, common.0
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