A set of documented functions for simulating the performance of photovoltaic energy systems. https://pvpmc.sandia.gov/modeling-guide/1-weather-design-inputs/plane-of-array-poa-irradiance/calculating-poa-irradiance/
active 2024-08-19 → 2026-08-05 (UTC)
Activity over time
Daily event counts in the loaded window
Line chart, 717 days from 2024-08-19 to 2026-08-05. Pushes: 90 total, peak 3 in a day. Pull requests: 234 total, peak 8 in a day. Issues: 157 total, peak 8 in a day. Comments: 1,405 total, peak 29 in a day. Stars: 170 total, peak 3 in a day.
- Pushes
- Pull requests
- Issues
- Comments
- Stars
Stars, PRs, issues and forks are under-captured in the later part of this window. GH Archive progressively stopped capturing non-push events during 2026 — −95% or worse by the end of the window. Every series here except Pushes fades for that reason, so a decline above reflects the archive, not this repository. Pushes stay reliable throughout, so read them, and the contributor counts derived from them, as the real signal. Data health has the measurements.
Top contributors
Pushes, PRs, issues, reviews and comments — stars and forks excluded, so this is contribution rather than popularity
| Contributor | Contributions | Pushes | PRs | Comments |
|---|---|---|---|---|
| kandersolar | 479 | 62 | 91 | 201 |
| cwhanse | 409 | 10 | 17 | 268 |
| AdamRJensen | 333 | 14 | 41 | 177 |
| echedey-ls | 295 | 0 | 15 | 178 |
| RDaxini | 259 | 0 | 21 | 162 |
| mikofski | 79 | 3 | 6 | 55 |
| ramaroesilva | 74 | 0 | 1 | 42 |
| adriesse | 66 | 0 | 0 | 53 |
| markcampanelli | 57 | 0 | 3 | 45 |
| aman-coder03 | 35 | 0 | 3 | 23 |
| kurt-rhee | 33 | 0 | 1 | 21 |
| williamhobbs | 33 | 0 | 4 | 24 |
| IoannisSifnaios | 24 | 0 | 3 | 11 |
| wholmgren | 18 | 0 | 1 | 10 |
| yhkee0404 | 16 | 0 | 0 | 10 |
| Chirag3841 | 12 | 0 | 4 | 8 |
| kumaradityaapril | 8 | 0 | 3 | 5 |
| maschwanden | 6 | 0 | 0 | 2 |
| jason-rpkt | 5 | 0 | 0 | 2 |
| brwerx | 5 | 0 | 1 | 3 |
Recent activity
Latest issues, pull requests and releases
- Issue comment#2750AdamRJensen2026-07-23 00:40GSoC 2026: Standardizing Diffuse Irradiance Components and Extending ModelChain Optical Loss Modeling
- Pull request#2807AdamRJensen2026-07-05 04:57
- Pull request#2799echedey-ls2026-07-02 17:38
- Issue comment#2794wholmgren2026-07-02 04:22Diffuse components with Klucher
- Issue#2796echedey-ls2026-06-26 23:28kimber grace and rain threshold implementation differences
- Issue#2796echedey-ls2026-06-26 23:28kimber grace and rain threshold implementation differences
- Issue comment#1694williamhobbs2026-06-26 23:12Diffuse Irradiance Optimization for Single Axis Trackers
- Pull request#2781AdamRJensen2026-06-10 20:38
- Issue comment#2762karlhillx2026-06-10 10:31Update nasa_power VARIABLE_MAP with additional parameters
- Pull request#2771gaoflow2026-06-09 21:41
- Pull request#2762IoannisSifnaios2026-06-09 08:18
- Issue comment#2774adriesse2026-06-05 13:09Wrong year in function name: ghi_from_poa_driesse_2023
- Pull request#2773AdamRJensen2026-06-02 20:23
- Issue#2772kandersolar2026-06-02 18:07Incorrect timestamp index description in iotools.era5 docstring
- Issue comment#2752Omesh372026-05-23 02:44BUG: fix dirint KeyError with scalar inputs on pandas >= 2.0
- Pull request#2757RDaxini2026-05-19 23:32
- Issue comment#2755shethkajal72026-05-16 23:06Enhancement to Townsend monthly snow loss model for engineering workflows
- Issue comment#2755cwhanse2026-05-16 22:44Enhancement to Townsend monthly snow loss model for engineering workflows
- Pull request#2753AdamRJensen2026-05-10 20:14
- Issue comment#2750asdai1102026-05-09 01:39GSoC 2026: Standardizing Diffuse Irradiance Components and Extending ModelChain Optical Loss Modeling
- Issue comment#1867cwhanse2026-05-08 19:04`bifacial.utils.vf_ground_sky_2d` interprets `max_rows` asymmetrically
- Issue#2750IoannisSifnaios2026-05-06 09:22GSoC 2026: Standardizing Diffuse Irradiance Components and Extending ModelChain Optical Loss Modeling
- Issue comment#2748cwhanse2026-05-05 22:25possible typo in modelchain.ModelChain input naming
- Pull request#2742kandersolar2026-04-23 17:22
- Issue comment#2537kandersolar2026-04-23 15:25Convert SPA native python loops to numpy operations
Totals cover only the window loaded into ClickHouse and count events, not GitHub's lifetime totals — 170 stars here means stars gained during the window, not the repo's star count.