{
"phase": "phase2",
"inverter": "EG4 18kPV-12LV (48V split-phase hybrid)",
"tmin_C": -40,
"tmin_source": "NREL_API_KEY not set (using documented design low)",
"voc_cold_module_temp_V": 61.14,
"bifacial_adder_V": 0.3,
"voc_cold_module_V": 61.44,
"voc_cold_module_pvlib_V": 61.258106425756864,
"max_modules_series_le_design": 8,
"modules_total": 31,
"n_strings": 4,
"max_string_series": 8,
"min_string_series": 7,
"n_series": 8,
"string_cold_voc_V": 491.5,
"string_imp_A": 13.11,
"string_isc_A": 13.87,
"pv_vref_worst_V": 307.0,
"array_dc_W": 17825,
"mppt_window_V": [
140,
500
],
"inv_design_ceiling_V": 550,
"inv_abs_ceiling_V": 600,
"margin_to_design_V": 58.5,
"margin_to_abs_V": 108.5,
"margin_to_500_V": 108.5,
"layout": [
{
"mppt": 0,
"lengths": [
8,
8
]
},
{
"mppt": 1,
"lengths": [
8
]
},
{
"mppt": 2,
"lengths": [
7
]
}
],
"per_mppt": [
{
"mppt": 1,
"n_parallel": 2,
"n_series": 8,
"lengths": [
8,
8
],
"equal_parallel": true,
"string_cold_voc_V": 491.5,
"string_cold_vmp_V": 429.8,
"string_hot_vmp_V": 296.2,
"combined_imp_A": 26.22,
"usable_a_limit": 25,
"combined_isc_A": 27.74,
"isc_a_limit": 31,
"current_clips_at_mpp": true,
"power_W": 9200,
"checks": {
"voc": true,
"vmp_hi": true,
"vmp_lo": true,
"isc": true,
"equal_parallel": true
}
},
{
"mppt": 2,
"n_parallel": 1,
"n_series": 8,
"lengths": [
8
],
"equal_parallel": true,
"string_cold_voc_V": 491.5,
"string_cold_vmp_V": 429.8,
"string_hot_vmp_V": 296.2,
"combined_imp_A": 13.11,
"usable_a_limit": 15,
"combined_isc_A": 13.87,
"isc_a_limit": 19,
"current_clips_at_mpp": false,
"power_W": 4600,
"checks": {
"voc": true,
"vmp_hi": true,
"vmp_lo": true,
"isc": true,
"equal_parallel": true
}
},
{
"mppt": 3,
"n_parallel": 1,
"n_series": 7,
"lengths": [
7
],
"equal_parallel": true,
"string_cold_voc_V": 430.1,
"string_cold_vmp_V": 376.1,
"string_hot_vmp_V": 259.2,
"combined_imp_A": 13.11,
"usable_a_limit": 15,
"combined_isc_A": 13.87,
"isc_a_limit": 19,
"current_clips_at_mpp": false,
"power_W": 4025,
"checks": {
"voc": true,
"vmp_hi": true,
"vmp_lo": true,
"isc": true,
"equal_parallel": true
}
}
],
"any_current_clip": true,
"verdict": "PASS",
"sweep": [
{
"N": 4,
"voc_cold_string_V": 245.8,
"le_design": true,
"le_abs": true,
"margin_to_design_V": 304.2
},
{
"N": 5,
"voc_cold_string_V": 307.2,
"le_design": true,
"le_abs": true,
"margin_to_design_V": 242.8
},
{
"N": 6,
"voc_cold_string_V": 368.6,
"le_design": true,
"le_abs": true,
"margin_to_design_V": 181.4
},
{
"N": 7,
"voc_cold_string_V": 430.1,
"le_design": true,
"le_abs": true,
"margin_to_design_V": 119.9
},
{
"N": 8,
"voc_cold_string_V": 491.5,
"le_design": true,
"le_abs": true,
"margin_to_design_V": 58.5
},
{
"N": 9,
"voc_cold_string_V": 553.0,
"le_design": false,
"le_abs": true,
"margin_to_design_V": -3.0
},
{
"N": 10,
"voc_cold_string_V": 614.4,
"le_design": false,
"le_abs": false,
"margin_to_design_V": -64.4
}
]
}