Kevin Anderson

Results 405 comments of Kevin Anderson

> you are saying that we need a substantive reference that says linear power loss models are valid for thin film modules. Is that right? What I'd really like to...

There are a couple problems with this shaded fraction calculation. One is that the meaning of `cross_axis_slope` changes depending on `surface_azimuth`. That means that for a tracking system, you get...

@echedey-ls I think the issues mentioned above are big enough that they won't be resolved in time for v0.10.4, so I retagged this PR for v0.10.5. Also, the generalized shaded...

Sounds good to me, although I'm not sure the test cases in the zenodo archive are necessarily the best beginner examples (for example, there is no "simple" case where `zL=zR=0`),...

One reason to drop 3.7 is to prevent excessive accumulation of supported versions: python releases new versions annually, and it's been more than a year since we dropped a version.

I suggest we move this item up to 0.10.5, and plan to release 0.10.5 soon (perhaps even this week) for #2026. Waiting for 0.11.0 would put the desire to drop...

Here is an example of modeling the effect of far-away mountains blocking the sun as it approaches the horizon: https://pvlib-python.readthedocs.io/en/stable/gallery/shading/plot_simple_irradiance_adjustment_for_horizon_shading.html The effect of different module orientations due to terrain variation...

@cwhanse I wonder if you can provide some insight on the calculation result differences I am seeing, relative to the values from `method='lambertw'`. In particular the identified vmp and its...

> @kandersolar you are plotting Vmp (logWright) - Vmp (lambertw)? Yep. > What happens if you increase the iterations in tools._logwrightomega? No meaningful change. I also tried switching to scipy's...

Here is a comparison of the various methods, calculating error relative to the "Case 1" known values in https://github.com/cwhanse/ivcurves/tree/main/ivcurves/test_sets: ![image](https://github.com/pvlib/pvlib-python/assets/57452607/ff6a3e03-176b-4d5f-8689-619ad55ba46f) So newton and brentq do quite well, but the two...