Thanks to a simple assembly (see
http://ecorenovator.org/forum/conser...nsumption.html), bought already made as I don't know how to use an iron...
I will be able to monitor my PV production.
Currently I'm just testing it so I'm logging the raw data in a flat file then transcode and graph them through several scripts and the rrdtool database. Even if this assembly may be useful
only on French meters, I'll post my scripts when they'll be of better quality, ie usable without having to be reverse engineered.
Here are the hourly productions (Wh) for these two days calculated from raw data :
Hours | 2009-02-20 | 2009-02-21 |
07-08 | 0 | 0 |
08-09 | 12 | 24 |
09-10 | 57 | 183 |
10-11 | 283 | 394 |
11-12 | 803 | 781 |
12-13 | 1217 | 1159 |
13-14 | 1393 | 1424 |
14-15 | 1451 | 1457 |
15-16 | 1366 | 1259 |
16-17 | 1083 | 920 |
17-18 | 593 | 363 |
18-19 | 20 | 14 |
19-20 | 0 | 0 |
Here are the graphs for the 2 consecutive days monitored :
- The instantaneous intensity (Amperes) :
- The instantaneous appearing power (Volt.Amperes) :
See comments in this
message about the pro/cons of these data right under respective graphs.
The first day was very cold so everything was frozen during the first hours. The difference is important before 11AM. During the second day some clouds were crossing the sky, so the curves are more erratic.
I ordered a second assembly so I'll be able to monitor both production and consumption meters at same time
Denis.
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Earth absorbs 1.8 t CO2/head/yr, while a French generates 6.2 t CO2/yr
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.- kg saved 06/08-08/09: 1816.9+382.9 (ecodriving / 1420mi not driven) = 2199.8
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(2.66 kg/l diesel)
- kg saved by 3kWc photo-voltaic solar panels : 187 kg/yr
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(59.1 g/kWh)
Radioactive wastes saved by 3kWc photo-voltaic solar panels :
- Long life (>100,000 years) : 2.85 g/yr (0.9 mg/kWh)
- Short life (<300 years) : 31.7 g/yr (10.0 mg/kWh)
Based upon "official" French figures...