In a previous blog post we shared the results of the 2013 Solar Panel Yield Measurement results. Below are the 2014 results.
Photon is an industry magazine and conference organizer. Once a year they measure the yield produced in relation to the power of each panel and factor in the radiation at the testing site.
Photon tests solar modules under standard conditions (STC) as well as testing in an outdoor field, testing under real-world conditions for real results. They have 174 different models installed in the test field. They aim to not only be the largest testing facility but also the most accurate.
The performance ratio measurement for each panel describes the relationship between the actual and theoretically possible energy outputs. The closer the value is to 100% the more efficiently it operates. It is the most important variable for evaluating the efficiency of a solar panel, therefore this test is a great way to see if a solar panel will live up to expectations.
Photon's 2014 Yeild Measurement Results
| 2014 Rank | Manufacturer | Model | Performance Ratio (%) |
| 1 | Sopray Energy | SR-190 | 94.9 |
| 2 | Risen Energy | SYP190S-M | 94.7 |
| 3 | Sonalis | SL190TU-36M | 94.4 |
| 4 | Sunpower | SPR-245NE-WHT-D | 93.9 |
| 5 | Renesola | JC245M-24/Bbv | 93.7 |
| 6 | Hanwha Q Cells | Q.PRO-G2 235 | 93.6 |
| 7 | Huanghe Photovoltaic Technology | HH230(30)P | 93.6 |
| 8 | Sunpower | SPR-327NE-WHT-D | 93.5 |
| 9 | Risen Energy | SYP250M | 93.4 |
| 10 | ET Solar Industry | ET-M660250WW | 93.2 |
| 11 | Sunpower | SPR-320NE-WHT-D | 93.1 |
| 12 | Jinko Solar | JKM275P-72 | 92.9 |
| 13 | Seraphim Solar System | SRP-220-6PB | 92.6 |
| 14 | Hareon Solar Technology | HR-230P-18/Bb | 92.4 |
| 15 | Sopray Energy | SR-156P-235 | 92.4 |
| 16 | Phono Solar | PS190M-24/F |
92.4 |
| 17 | CSG PVTech | CSG240M2 | 92.4 |
| 18 | CSG PVTech | CSG250S2 | 92.3 |
| 19 | Runda PV | RS230P-60 | 92.3 |
| 20 | Topsolar Green | TSM96-125M-250W | 92.3 |
The rankings of other solar panels that New Zealand installers are using include:
Ranking 34 - Yingli Green Energy Holding - YL240P-29b - 91.6%
Ranking 53 - CNPV Solar Power - CNPV-220P - 91.1%
Ranking 57 - SolarWorld - Sunmodule Plus SW 225 mono - 91.0%