NatLabRockies/ssc

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SAM Simulation Core (SSC) contains the underlying performance and financial models for SAM

Stars: 94
Forks: 118
Open beginner issues: 0
Indexed issues: 30
Avg merge: 3d 11h
Merged PRs (30d): 1

Dominant language: C++
License: BSD-3-Clause
Last GitHub push: Jul 17, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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30 open issues indexed

Merchant plant fuel expenses are based on year 1 power output Open

bug

NatLabRockies/ssc#1422 · 1 assignee · Opened Aug 20, 2026
`tcsmolten_salt`: `adjust:timeindex` is applied at hour-of-year resolution when the simulation runs sub-hourly Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

NatLabRockies/ssc#1421 · Opened Jul 22, 2026
Gringarten Implementation for EGS geothermal in SAM Open

NatLabRockies/ssc#1415 · 1 assignee · Opened Jul 8, 2026
Trough solar azimuth unit bug Open

csp

NatLabRockies/ssc#1391 · 2 assignees · Opened Apr 28, 2026
Test issues on MacOS arm64 Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

NatLabRockies/ssc#1388 · Opened Apr 13, 2026
Intermittent issue with clearsky output time series variable reporting Open

bug pv

NatLabRockies/ssc#1363 · 2 assignees · Opened Nov 14, 2025
Issues with shading models and vertical bifacial module assumptions Open

pv wishlist

NatLabRockies/ssc#1359 · 1 comment · 1 assignee · Opened Oct 29, 2025
Transition battery_t to return const pointers instead of copies where possible Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

NatLabRockies/ssc#1252 · Opened Dec 3, 2024
Improve error messages for out of bound weather data Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

NatLabRockies/ssc#1226 · Opened Oct 23, 2024
Underestimation in Battery power integration from voltage curve Open

battery bug

Difficulty 4/5 3-5 days Newbie friendliness 30/100

NatLabRockies/ssc#1202 · 1 comment · Opened Aug 12, 2024
Intermittent failures on Windows runner for lib_utility_rate_test Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

NatLabRockies/ssc#1195 · Opened Jul 30, 2024
Translating from Power to Energy in Sunrise/Sunset Hours Open

bug pv

NatLabRockies/ssc#1180 · 13 comments · 2 reactions · 1 assignee · Opened Jul 10, 2024
Re-evaluate default temperature models Open

pv wishlist

NatLabRockies/ssc#1179 · 1 reaction · 1 assignee · Opened Jul 2, 2024
Consider updating to Driesse-Perez model Open

enhancement pv

NatLabRockies/ssc#1108 · 1 reaction · 1 assignee · Opened Dec 8, 2023
Question about application of Fuentes PV thermal model coefficients Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

NatLabRockies/ssc#1039 · 13 comments · Opened Jul 25, 2023
SWH effective incidence angle relations are in terms of degrees Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

NatLabRockies/ssc#1030 · Opened May 25, 2023
Potential error in SWH model Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

NatLabRockies/ssc#1029 · Opened May 25, 2023
New flows and fluid objects (Task3) Open

csp enhancement

NatLabRockies/ssc#860 · 1 comment · 1 assignee · Opened Aug 15, 2022
Update LMO/LTO Model with Latest Data Open

battery enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

NatLabRockies/ssc#849 · Opened Jul 12, 2022
Allowing the csp solver to turn off receiver when defocus is not enough to converge Open

csp enhancement

NatLabRockies/ssc#676 · 1 reaction · 1 assignee · Opened Nov 29, 2021
Price Signals Dispatch runs slightly differently on Windows and Linux Open

battery bug wishlist

NatLabRockies/ssc#614 · 5 comments · 1 assignee · Opened Sep 9, 2021
Enable 8784 "annual" simulations Open

architecture enhancement wishlist

NatLabRockies/ssc#604 · 1 comment · 2 reactions · 1 assignee · Opened Aug 17, 2021
SolarPILOT out_of_range error Open

bug csp solarpilot

NatLabRockies/ssc#592 · 2 assignees · Opened Jul 15, 2021
Clean up kWh outputs for two-meter case Open

enhancement utility rate

Difficulty 4/5 3-5 days Newbie friendliness 35/100

NatLabRockies/ssc#529 · 5 comments · Opened Feb 5, 2021
Make irradiance input names consistent across cmods Open

enhancement pv

Difficulty 5/5 Over a week Newbie friendliness 25/100

NatLabRockies/ssc#497 · 5 comments · Opened Dec 15, 2020
Update PVWatts module type options Open

pv

NatLabRockies/ssc#420 · 2 comments · 1 assignee · Opened Jul 2, 2020
Dispatch optimization not working for sub-hourly timesteps Open

bug csp

NatLabRockies/ssc#302 · 2 comments · 2 assignees · Opened Aug 5, 2019
Documenting each cmod_x.cpp with description of purpose Open

enhancement

Difficulty 3/5 3-5 days Newbie friendliness 52/100

NatLabRockies/ssc#298 · Opened Jul 29, 2019
CSP Physical Trough model SolarPACES guideline conformity Open

csp enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

NatLabRockies/ssc#187 · Opened Jul 17, 2018
thin film recombination current loss term Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

NatLabRockies/ssc#155 · 7 comments · Opened May 7, 2018

NatLabRockies/ssc

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