We have the datalogging up and running. We should have the live site public soon. We are seeing identical output at noon, indicating a good controlled test.
Here is a screenshot from later in the day as the tracker production pulls ahead -
Unfortunately the Enlighten portal was not really designed for comparing data between modules over time - but we can pull out daily or monthly totals for tracking vs. fixed, and we will post that. We could have had more powerful comparison capabilities by using two of the Envoy boxes, but mostly we will be interested in the totals and we will be able to access that, with just a bit of effort.
Total for the day - A very sunny day near the Solstice in Colorado.
2000+WH per day from one module is impressive, and there is some shading early and late. The enphase 190s were able to do up to 199W. These totals also rose a bit more as the webpage updated later. 1473+1568 vs. 2042+2070. The higher variation in the fixed panels is because one module is closer to the building and therefore will be shadowed consistently more than the other. The tracked modules are affected more equally by shadows. The shadow issues for either only occur very early and very late in the day, near the summer solstice, since the building is directly North of the panels.
Author
Topic: Comparison Project - SunArx vs Fixed Tilt (Read 1723 times)