Illustration · 144 cells

Solar panelSaatvik Green Energy

Saatvik Green Energy SGE580-144TGG

Name: Saatvik Green Energy SGE580-144TGG
Brand: Saatvik Green Energy

144 cells, bifacial. Power classes 560–600 W in the CEC list.

CEC listed · Nov 21, 2025UL 61730Bifacial

Power class

Power (STC)580 WCEC nameplate
Efficiency≈22.7%calculated from area
%/°C Pmax−0.284CEC listing test
PTC / STC94.5%PTC 548 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
SGE560-144TGG	560 W	50.68	13.88	42.41	13.22	≈21.9%	529 W	Nov 21, 2025
SGE565-144TGG	565 W	50.86	13.96	42.53	13.30	≈22.1%	534 W	Nov 21, 2025
SGE570-144TGG	570 W	51.04	14.04	42.65	13.37	≈22.3%	538 W	Nov 21, 2025
SGE575-144TGG	575 W	51.22	14.10	42.82	13.43	≈22.5%	543 W	Nov 21, 2025
SGE580-144TGG	580 W	51.41	14.19	42.94	13.51	≈22.7%	548 W	Nov 21, 2025
SGE585-144TGG	585 W	51.59	14.26	42.94	13.59	≈22.9%	553 W	Nov 21, 2025
SGE590-144TGG	590 W	51.77	14.33	43.18	13.67	≈23.0%	558 W	Nov 21, 2025
SGE595-144TGG	595 W	51.95	14.43	43.30	13.74	≈23.2%	563 W	Nov 21, 2025
SGE600-144TGG	600 W	52.13	14.51	43.42	13.82	≈23.4%	567 W	Nov 21, 2025

≈ efficiency = Pmax ÷ CEC-listed area 2.56 m².

Heat & cold behaviour

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

	CEC listing test
Pmax coefficient γ	−0.284 %/°C
Voc coefficient β	−0.228 %/°C
Isc coefficient α	+0.042 %/°C
Operating cell temperature	NOCT 46.1 °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	425.2 W	41.7 V × 10.2 A	109 W	97%
565 W	429 W	41.81 V × 10.26 A	110 W	97%
570 W	432.5 W	41.93 V × 10.31 A	110.9 W	97%
575 W	436.2 W	42.1 V × 10.36 A	111.8 W	97%
580 W	440 W	42.22 V × 10.42 A	112.8 W	97%
585 W	442.6 W	42.22 V × 10.48 A	113.5 W	97%
590 W	447.7 W	42.45 V × 10.55 A	114.8 W	97%
595 W	451.2 W	42.57 V × 10.6 A	115.7 W	97%
600 W	455.1 W	42.69 V × 10.66 A	116.7 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 · Jul 2, 2025

Independent reliability testing

Kiwa PVEL Scorecard

PVEL Scorecards

Saatvik Green Energy, 2024

This exact series is not listed in published PVEL Top Performer tables. Results below are for the manufacturer.

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

54.1 V

Voc when cold

per panel

36.1 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	2–11
Solis (Ginlong) S6-EH1P10K-H-US	600 V	80–520 V	datasheet	3–11
Solis (Ginlong) Solis-1P7.6K-4G-US	600 V	100–500 V	datasheet	3–11
Qcells Q.VOLT H7.6SX	498 V	234–498 V	CEC test window	7–9

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)
Saatvik Green Energy SGE580-144TGG	580 W	≈22.7%	−0.284	51.41	14.19	brand 1×	—
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.

Questions & answers

How efficient is the Saatvik Green Energy SGE580-144TGG?

Calculated from the panel area (2.56 m²): about 22.7% for the 580 W class. 580 W over 2.56 m² equals about 227 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 = −0.284 %/°C, at a 77 °C cell temperature (hottest modeled hour in Palmdale) output is about 14.7% 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 2–11 panels per string (Voc at 2 °C = 54.1 V, Vmp at 74 °C cell = 36.1 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?

This exact series is not in published PVEL Top Performer tables; Saatvik Green Energy was named a Top Performer in 1 Scorecard (2024).

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.
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).