24th January 2012
Our new solar panel coatings product nanoShell Solar PV keeps solar panels clean for up to 5 years and makes them more efficient in wet weather.
We've been monitoring a customer site since application on 20th September 2011. This site comprises 10kw of Sharp 250 rated panels. These are split across 3 inverters (1 x 2kw & 2 x 4kw). We cleaned the panels and applied nanoShell Solar PV solar panel coating to one of the 4kw string (indicated below as Coated). The results are as follows:
The panels had been operational for a few months and were registering 1387kw (to be coated) and 1373 (control group).
| Monitoring Week | Coated Weekly | Non-Coated Weekly | Weekly Difference Kwh | Weekly Difference % | Weather |
|---|---|---|---|---|---|
| Week 1 | 17 | 14 | 3 | 21.43 | Rainy and very overcast |
| Week 2 | 69 | 66 | 3 | 4.55 | some light rain |
| Week 3 | 79 | 76 | 3 | 3.95 | Broadly sunny although light rain on one day |
| Week 4 | 101 | 93 | 8 | 8.60 | good weather some rain over two days |
| Week 5 | 52 | 52 | 0 | 0.00 | overcast and dry |
| Week 6 | 65 | 59 | 6 | 10.17 | mainly overcast but some rain on mon and tues |
| Week 7 | 38 | 32 | 6 | 18.75 | mainly overcast with some heavy rain |
| Week 8 | 35 | 28 | 7 | 25.00 | heavy rain most of the week |
| Week 9 | 35 | 31 | 4 | 12.90 | overcast all week with some rain |
| Week 10 | 23 | 19 | 4 | 21.05 | a rainy and overcast week |
| Week 11 | 22 | 20 | 2 | 10.00 | mainly overcast with some rain |
| Week 12 | 22 | 18 | 4 | 22.22 | some sunshine but mainly low light conditions |
| Week 13 | 24 | 21 | 3 | 14.29 | a lot of rain a very dark week |
| Week 14 | 18 | 15 | 3 | 20.00 | heavy rain most of the week |
| Week 15 | 18 | 15 | 3 | 20.00 | rain most of the week |
| Week 16 | 15 | 13 | 2 | 15.38 | overcast low light conditions and some rain |
| Week 17 | 14 | 13 | 1 | 7.69 | dark and heavy rain |
| Week 18 | 23 | 18 | 5 | 27.78 | mixed light rain and high winds |
| Week 19 | 30 | 24 | 6 | 25.00 | mixed weather and light rain |
| Week 20 | 24 | 21 | 3 | 14.29 | low light with some light rain |
| Week 21 | 26 | 21 | 5 | 23.81 | low light with some heavy rain |
| Week 22 | 61 | 52 | 9 | 17.31 | mainly dry but with frost |
| Week 23 | 28 | 25 | 3 | 12.00 | mainly dry but with frost |
| Week 24 | 37 | 32 | 5 | 15.63 | mainly dry but with some light showers |
| Totals | 876 | 778 | 98 | 12.60 |
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