On boat #1 the magazine installed 2 x SUNBEAMsystem 30W (60W in total). It increased the total power by 17% utilizing the same surface area. There was a significant weight saved, 4.8kg compared with previous solar panels. In fact, the minimal size enabled installation of 2x30W SUNBEAMsystem on a surface that before could not fit the older type solar panels. Hence multiplying the total installed wattage.
Boat #2 got upgraded with 2 x SUNBEAMsystem 30W. As a result, an increase of 20% compared to the previous installation. The junction box free installation was very much appreciated by the owner
SUNBEAMsystem notes that the sample boats on average increased the installed wattage by 18.5% by replacing the old solar panels. We also note benefits for the owners such as no junction box to stumble upon. As well as avoiding ugly cables along the deck. There was also a significant weight loss for both boats.
Output in the Swedish reality
On boat #1 with a combined swivel and horizontal mounting, they extensively measure it over the summer. They revealed a good effect in all the different conditions that we suffer during a Nordic summer. During normal sunny conditions, the main production was about 7.5A corresponding to 106.5 watts. This result is 89% of the normative effect, a much higher value than traditional panels usually produce.
To complete the test of 30W panels fitted on the two boats. The newspaper also did tests on dry land including two other sizes. SUNBEAMsystem 50W (Part No. SP50) And SUNBEAMsystem 60W (Art No SP60-12v). In this test, the air temperature was about 20 degrees Celsius, relative humidity 48%. The solar panel exposure was straight at the sun at the peak of the day. To verify all values, they conducted the tests 4 times with 4 independent measuring instruments. In the table below is the highest observed effects (Wp):
|SUNBEAMsystem SP50 (50W stamped effect)
||Wp = 51W
|SUNBEAMsystem SP60-12V (60W stamped effect)
||Wp = 69W
You can found the original article in the Yacht magazine Båtliv No. 2 2016. www.Batliv.se here
Read here an article about the test.