Sunnyside Solar Simulator

CSS loaded

Simulate

Choose one of the four supported simulation modes: fixed LPEA plant with comparison, fixed LPEA plant with NSRDB weather, custom plant with NSRDB weather, or custom plant with an uploaded weather CSV.

1 Simulation Type

2 Select Simulation Dates

Pick a start date and end date for the simulation:

LPEA comparison data: 2025-09-24 to 2026-04-10
NSRDB-backed simulations: 2018-01-01 to 2024-12-31
Custom uploaded CSV mode uses the timestamps present in the uploaded file.

Start Date:

End Date:

3 Simulation Inputs

Simulation Inputs

Custom Irradiance + Weather Data

Custom inputs must follow the NREL NSRDB CSV format. Download the template below and edit in a text editor to avoid formatting changes from spreadsheet tools.

Template
Download Dataset Template

Upload

Uploaded weather CSVs are used only in the Custom Plant + Custom Weather CSV mode and override the date-range inputs.

Custom Plant Layout / Specs

Use these optional JSON fields to override strings per inverter, array layout, inverter name, and even full module/inverter libraries for custom plant simulations.

System Layout JSON

Custom Modules JSON

[
  {
    "Name": "CUSTOM_MOD_A",
    "Manufacturer": "CSI Solar Co. Ltd.",
    "Technology": "Mono-c-Si",
    "Bifacial": 1,
    "STC": 645.047,
    "PTC": 600.4,
    "A_c": 3.07,
    "Length": null,
    "Width": null,
    "N_s": 66,
    "I_sc_ref": 18.35,
    "V_oc_ref": 44.8,
    "I_mp_ref": 17.11,
    "V_mp_ref": 37.7,
    "alpha_sc": 0.0097255,
    "beta_oc": -0.131264,
    "T_NOCT": 43.7,
    "a_ref": 1.79228,
    "I_L_ref": 18.3687,
    "I_o_ref": 2.49275e-10,
    "R_s": 0.0933596,
    "R_sh_ref": 91.6352,
    "Adjust": 14.2849,
    "gamma_pmp": -0.39,
    "BIPV": "N",
    "Version": "2023.12.17",
    "Date": "11/14/2024"
  },
  {
    "Name": "CUSTOM_MOD_B",
    "Manufacturer": "CSI Solar Co. Ltd.",
    "Technology": "Mono-c-Si",
    "Bifacial": 1,
    "STC": 655.32,
    "PTC": 610,
    "A_c": 3.07,
    "Length": null,
    "Width": null,
    "N_s": 66,
    "I_sc_ref": 18.43,
    "V_oc_ref": 45.2,
    "I_mp_ref": 17.2,
    "V_mp_ref": 38.1,
    "alpha_sc": 0.0097679,
    "beta_oc": -0.132436,
    "T_NOCT": 43.7,
    "a_ref": 1.809,
    "I_L_ref": 18.4473,
    "I_o_ref": 2.53079e-10,
    "R_s": 0.0896258,
    "R_sh_ref": 95.4878,
    "Adjust": 14.3813,
    "gamma_pmp": -0.39,
    "BIPV": "N",
    "Version": "2023.12.17",
    "Date": "11/14/2024"
  }
]

Custom Inverters JSON

Loss Parameters

Soiling (%)

Shading (%)

Snow (%)

Mismatch (%)

Wiring (%)

Connections (%)

LID (%)

Nameplate Rating (%)

Age (%)

Availability (%)

4 Run Simulation

Menu