Illustration · 156 half-cut cells

Solar panelTata Power Renewables

Tata Power Renewables TP580LG10B

Name: Tata Power Renewables TP580LG10B
Brand: Tata Power Renewables

156 half-cut cells, bifacial, glass (dual-glass module). Power classes 560–600 W in the CEC list.

CEC listed · Jun 2, 2025UL 61730BifacialPVEL Top Performer 2024, 2025

Power class

Power (STC)580 WCEC nameplate
Efficiency≈21.0%calculated from area
%/°C Pmax−0.343CEC listing test
PTC / STC93.2%PTC 541 W (CEC)

Power classes

CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation · 9 models

Model	Pmax	Voc, V	Isc, A	Vmp, V	Imp, A	Efficiency	PTC	CEC listed
TP560LG10B	560 W	53.25	13.02	45.17	12.40	≈20.3%	522 W	Jun 2, 2025
TP565LG10B	565 W	53.30	13.03	45.50	12.42	≈20.5%	526 W	Jun 2, 2025
TP570LG10B	570 W	53.41	13.04	45.71	12.47	≈20.7%	531 W	Jun 2, 2025
TP575LG10B	575 W	53.52	13.10	45.87	12.54	≈20.8%	536 W	Jun 2, 2025
TP580LG10B	580 W	53.63	13.12	45.97	12.62	≈21.0%	541 W	Jun 2, 2025
TP585LG10B	585 W	53.73	13.20	46.10	12.69	≈21.2%	546 W	Jun 2, 2025
TP590LG10B	590 W	53.90	13.29	46.18	12.78	≈21.4%	550 W	Jun 2, 2025
TP595LG10B	595 W	54.01	13.37	46.28	12.86	≈21.6%	555 W	Jun 2, 2025
TP600LG10B	600 W	54.12	13.45	46.41	12.93	≈21.7%	560 W	Jun 2, 2025

≈ efficiency = Pmax ÷ CEC-listed area 2.76 m².

Build & dimensions

CEC PV Module List (Oct 7, 2026)

Module area2.76 m² (29.7 ft²)CEC-listed area
Cells156 half-cut cells
Back coverGlass (dual-glass module)

Heat & cold behaviour

CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation

	CEC listing test
Pmax coefficient γ	−0.343 %/°C
Voc coefficient β	−0.260 %/°C
Isc coefficient α	+0.021 %/°C
Operating cell temperature	NOCT 45.9 °C

Vmp coefficient ≈ γ − α (CEC); used only for the hot-roof voltage estimate.

Away from lab conditions — CEC listing test points

Class	Pmax at NOCT	Vmp × Imp at NOCT	Pmax at 200 W/m²	Low-light efficiency vs STC
560 W	419.8 W	41.56 V × 10.1 A	108.8 W	97%
565 W	423.6 W	41.87 V × 10.12 A	109.8 W	97%
570 W	427.2 W	42.06 V × 10.16 A	110.8 W	97%
575 W	431.1 W	42.21 V × 10.21 A	111.8 W	97%
580 W	434.8 W	42.3 V × 10.28 A	112.7 W	97%
585 W	438.5 W	42.42 V × 10.34 A	113.7 W	97%
590 W	442.4 W	42.49 V × 10.41 A	114.7 W	97%
595 W	446.1 W	42.59 V × 10.48 A	115.7 W	97%
600 W	449.8 W	42.7 V × 10.53 A	116.6 W	97%

Pmax = Vmp × Imp from the CEC listing; low-light efficiency = Pmax at 200 W/m² ÷ (20% of STC Pmax).

Certifications

CEC PV Module List (Oct 7, 2026)

UL 61730IEC 61215

UL 61730CEC listing
IEC 61215design qualification on file with CEC · Apr 25, 2024

Independent reliability testing

Kiwa PVEL Scorecard · RETC PV Module Index

2024, 2025

PVEL Top Performer

this series

Tests passed as Top Performer

LID+LETID

PVEL Scorecards

Tata Power Renewables named Top Performer, 2024–2026

RETC PV Module Index

Tata Power Renewables, 2025

PVEL Top Performer tests

Year	Product	Tests
2024	TPxxxLG10B	LID+LETID
2025	TPxxxLG10B	LID+LETID
2025	TPxxxLG10 (closely related product name)	LID+LETID

Tested bill of materials

PVEL-tested factoryIndia
Cell technology (tested BOM)p-type PERC
Module design (tested BOM)bifacial - glass//glass
Power class range tested580-625W

Details describe the tested sample, not every module of the series.

RETC PV Module Index — Tata Power Renewables

Year	Recognition
2025	Test Category High Achiever

Inverter compatibility & string sizing

CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation · NLR PVWatts v8 · inverter datasheets · NLR SAM inverter library · CEC Grid Support Inverter List (Oct 7, 2026)

CityColdest air, °CHottest cell, °CString inverter

56.8 V

Voc when cold

per panel

37.8 V

Vmp when hot

per panel

Max panels / string

max DC 600 V

Min panels / string

MPPT from 60 V

Defaults come from NLR TMY weather (coldest hour, hottest modeled cell). Code calculations (NEC 690.7) use the ASHRAE extreme annual minimum, which is usually colder — enter it above. β is the CEC-measured coefficient; NEC 690.7 calculations use the datasheet value.

String inverters most named in SoCal permits

Inverter	Max DC input	MPPT	Window source	Panels per string
Tesla 1538000-xx-y	600 V	60–480 V	datasheet	2–10
Solis (Ginlong) S6-EH1P10K-H-US	600 V	80–520 V	datasheet	3–10
Solis (Ginlong) Solis-1P7.6K-4G-US	600 V	100–500 V	datasheet	3–10
Qcells Q.VOLT H7.6SX	498 V	234–498 V	CEC test window	7–8

Microinverters (one per panel)

No microinverter in the reference set lists this power class in its recommended module power range.

Voltage check against the microinverter datasheets — confirm the pairing on the manufacturer’s module compatibility list. Rows appear only when the panel’s power is inside the microinverter’s recommended module power range.

SolarEdge and other optimizer-based systems size strings by the optimizer rules — use the manufacturer’s designer. Reference inverters: most named in SoCal permits since Oct 2024.

Expected production in Southern California

NLR PVWatts v8 · Cali-Graf calculation

PanelsCity for chartSystem size

City	kWh / kW / yr	kWh / panel / yr	kWh / system / yr	Sun, kWh/m²/day
Los Angeles	1,676	972	11,665	6.08
Palmdale	1,835	1,064	12,772	6.69
Chula Vista	1,696	984	11,804	6.11
Huntington Beach	1,643	953	11,435	5.89
Riverside	1,696	984	11,804	6.21
Santa Clarita	1,724	1,000	11,999	6.28

Estimate for comparison, not a quote: shading, roof orientation and local losses change real output. Roof mount, 20° tilt, south, 14% system losses.

Compare with similar 580 W panels

CEC PV Module List (Oct 7, 2026) · Kiwa PVEL Scorecard · building permits

Panel	Pmax	Efficiency	γ Pmax (CEC)	Voc, V	Isc, A	PVEL (product / brand)	SoCal permits (series)
Tata Power Renewables TP580LG10B	580 W	≈21%	−0.343	53.63	13.12	product 2024, 2025	—
ZNShine Solar ZXM7-UHLDD144-580/N	580 W	≈22.7%	−0.281	51.5	14.35	product 2024, 2025, 2026	1
VSUN (Vietnam Sunergy) VSUN580N-144MH	580 W	≈22.5%	−0.309	52.02	13.83	brand 6× (2021–2026)	1
Phono Solar PS580M8GFH-24/TNH	580 W	≈22.7%	−0.293	52.7	13.66	product 2024, 2025	1

Same fields from the same sources for every row; ≈ efficiency is calculated from the listed area. Comparable series: other brands, same product group, power range covering this class.

About Tata Power Renewables

CEC PV Module List (Oct 7, 2026) · Kiwa PVEL Scorecard · RETC PV Module Index

ManufacturerTata Power Renewables
Listed in CEC asTata Power Renewables
PVEL Top Performer (manufacturer)3 Scorecards (2024–2026)
RETC PV Module Index2025
Current panel series in CEC list3

Other series by SoCal permits

TPxxxVG12R16NBTPxxxHG10B

Questions & answers

How efficient is the Tata Power Renewables TP580LG10B?

Calculated from the panel area (2.76 m²): about 21% for the 580 W class. 580 W over 2.76 m² equals about 210 W per square meter.

How much energy does one panel produce in Los Angeles or Palmdale?

PVWatts v8 with typical-year weather gives about 972 kWh per year per 580 W panel in Los Angeles and about 1,064 kWh in Palmdale (20° roof, facing south, 14% system losses).

How much power does it lose on a hot roof?

With γ = −0.343 %/°C, at a 77 °C cell temperature (hottest modeled hour in Palmdale) output is about 17.7% below the STC rating.

How many panels fit on one string?

With the Tesla 1538000-xx-y (max DC 600 V, MPPT from 60 V, datasheet) in Los Angeles the calculator gives 2–10 panels per string (Voc at 2 °C = 56.8 V, Vmp at 74 °C cell = 37.8 V). Final design must follow the inverter manual and NEC 690.7.

Is it bifacial?

Yes. Rear gain depends on mounting height and ground reflectance.

Has this panel been reliability-tested?

TPxxxLG10B was a PVEL Top Performer in 2024, 2025 (LID+LETID).

Sources

California Energy Commission — Solar Equipment Lists, PV Module List, Inverter List (snapshot Oct 7, 2026).
Kiwa PVEL — PV Module Reliability Scorecard, Top Performer lists 2024–2026.
RETC — PV Module Index report.
NLR (formerly NREL) — System Advisor Model CEC module and inverter libraries (version 2026.7.3).
NLR (formerly NREL) — PVWatts v8, NSRDB PSM v3 typical-year weather for Los Angeles, Palmdale, Chula Vista, Huntington Beach, Riverside, Santa Clarita.
Inverter datasheets — Solis (Ginlong), Tesla (manufacturer documents).
Building permits — Southern California permit portals. Equipment matched from permit descriptions.
Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).