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Posted By: inglesideObviously, a sunny morning and a cloudy afternoon (or vice versa) will affect the balance, but over six weeks I reckon that will even itself out.
Posted By: Jeff BWe have only had our PV panels for about 1 month so I cannot present much meaningful data as yet. We have 20 x 180 watt panels. The roof faces SSE and the angle is about 40 degrees. The best day we had generated 23 kWh and the worst 2 kWh. What has been surprising to me is the large day-to-day variation.
The total output for April was almost 400 kWh. Does this sound good?
Posted By: skyewrightAfter you have had the system a while you will likely find that big variations are not uncommon.
Posted By: skyewrightSo, in an ideal world, what data would you like to see, i.e. which values and at what intervals? No promises, but maybe I can provide something better than just the daily summary of PV data?Just remembered I prepared a report to produce CSV data for a student who asked on the Navitron Forum for data to help test a model he'd produced as a design project. That report produced CSV with 8 columns giving hourly values for:YearMonth NumberDay NumberHour NumberPV output in wattsAverage irradiance in W/m2Average ambient temp in CAverage windspeed in m/sSample attached for w/c 2011-02-22 (as a .txt as GBF doesn't see to like .csv). If that is of interest I can readily provide equivalent data for a wider period. If you'd like a different combination, let me know.
So, in an ideal world, what data would you like to see, i.e. which values and at what intervals? No promises, but maybe I can provide something better than just the daily summary of PV data?
Posted By: jamesingramJust tohught I'd make people aware of this , if they weren't already
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