Illustration · 72 cells

Solar panelMitrex

Mitrex M325-RF041F

Name: Mitrex M325-RF041F
Brand: Mitrex

72 cells. Power classes 295–355 W in the CEC list.

CEC listed · Dec 21, 2022UL 61730

Power class

Power (STC)325 WCEC nameplate
Efficiency≈16.2%calculated from area
%/°C Pmax−0.364CEC listing test
PTC / STC91%PTC 296 W (CEC)

Power classes

CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation · 13 models

Model	Pmax	Voc, V	Isc, A	Vmp, V	Imp, A	Efficiency	PTC	CEC listed
M295-RF041F	295 W	48.40	7.64	40.50	7.28	≈14.8%	268 W	Dec 21, 2022
M300-RF041F	300 W	48.40	7.77	40.50	7.41	≈15.0%	273 W	Dec 21, 2022
M305-RF041F	305 W	48.50	7.90	40.60	7.51	≈15.2%	277 W	Dec 21, 2022
M310-RF041F	310 W	48.50	8.03	40.60	7.64	≈15.5%	282 W	Dec 21, 2022
M315-RF041F	315 W	48.60	8.16	40.70	7.74	≈15.8%	287 W	Dec 21, 2022
M320-RF041F	320 W	48.60	8.29	40.70	7.86	≈16.0%	291 W	Dec 21, 2022
M325-RF041F	325 W	48.70	8.42	40.80	7.98	≈16.2%	296 W	Dec 21, 2022
M330-RF041F	330 W	48.70	8.55	40.80	8.09	≈16.5%	300 W	Dec 21, 2022
M335-RF041F	335 W	48.80	8.68	40.90	8.19	≈16.8%	305 W	Dec 21, 2022
M340-RF041F	340 W	48.80	8.81	40.90	8.31	≈17.0%	311 W	Dec 21, 2022
M345-RF041F	345 W	48.90	8.94	41.00	8.41	≈17.2%	316 W	Dec 21, 2022
M350-RF041F	350 W	48.90	9.07	41.00	8.54	≈17.5%	320 W	Dec 21, 2022
M355-RF041F	355 W	49.00	9.20	41.10	8.64	≈17.8%	325 W	Dec 21, 2022

≈ efficiency = Pmax ÷ CEC-listed area 2 m².

Heat & cold behaviour

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

	CEC listing test
Pmax coefficient γ	−0.364 %/°C
Voc coefficient β	−0.272 %/°C
Isc coefficient α	+0.032 %/°C
Operating cell temperature	NOCT 49 °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
295 W	220 W	36.74 V × 5.99 A	58.2 W	99%
300 W	223.9 W	36.74 V × 6.09 A	59.3 W	99%
305 W	227.5 W	36.83 V × 6.18 A	60.2 W	99%
310 W	231.4 W	36.83 V × 6.28 A	61.3 W	99%
315 W	235 W	36.92 V × 6.37 A	62.2 W	99%
320 W	242.9 W	36.71 V × 6.62 A	64.6 W	101%
325 W	247.2 W	36.8 V × 6.72 A	65.7 W	101%
330 W	250.6 W	36.8 V × 6.81 A	66.6 W	101%
335 W	254.3 W	36.89 V × 6.89 A	67.6 W	101%
340 W	247.5 W	36.84 V × 6.72 A	65.4 W	96%
345 W	251.1 W	36.93 V × 6.8 A	66.4 W	96%
350 W	255 W	36.93 V × 6.91 A	67.4 W	96%
355 W	258.6 W	37.02 V × 6.99 A	68.4 W	96%

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

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

51.7 V

Voc when cold

per panel

32.9 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	4–11
Qcells Q.VOLT H7.6SX	498 V	234–498 V	CEC test window	8–9

Microinverters (one per panel)

Microinverter	Recommended module power	Max DC input	MPPT	Voc cold / Vmp hot	Check	DC/AC
Enphase IQ8PLUS-72-2-US	235–440 W	60 V	29–45 V	51.7 / 32.9 V	✓ Within range	1.12
Enphase IQ8X-80-M-US	320–540 W	79.5 V	43–60 V	51.7 / 32.9 V	✗ Not a match: module voltage below MPPT range	0.86
APsystems (Alt Power System) DS3-L	265–570 W	60 V	28–45 V	51.7 / 32.9 V	✓ Within range	0.42
Enphase IQ8M-72-2-US	260–460 W	60 V	30–45 V	51.7 / 32.9 V	✓ Within range	1
Enphase IQ8A-72-2-US	295–500 W	60 V	32–45 V	51.7 / 32.9 V	✓ Within range	0.93

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	545	11,983	6.08
Palmdale	1,835	596	13,120	6.69
Chula Vista	1,696	551	12,126	6.11
Huntington Beach	1,643	534	11,747	5.89
Riverside	1,696	551	12,126	6.21
Santa Clarita	1,724	560	12,327	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 325 W panels

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

Panel	Pmax	Efficiency	γ Pmax (CEC)	Voc, V	Isc, A	Size	Warranty	PVEL (product / brand)	SoCal permits (series)
Mitrex M325-RF041F	325 W	≈16.2%	−0.364	48.7	8.42	—	—	—	—
JinkoSolar JKM325M-60HBL	325 W	≈19.3%	−0.407	41.1	10.2	66.3 × 39.4 in	10 / 25 yr	brand 12× (2014–2026)	45
Qcells Q.PEAK DUO-G8+ 330	330 W	≈18.4%	−0.343	39.71	10.52	68.5 × 40.6 in	25 / 25 yr	product 2022	20
LG Electronics LG325N1C-N5	325 W	≈18.8%	−0.342	40.9	10.57	66.9 × 40 in	25 / 25 yr	product 2021	5

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 Mitrex M325-RF041F?

Calculated from the panel area (2 m²): about 16.2% for the 325 W class. 325 W over 2 m² equals about 162 W per square meter.

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

PVWatts v8 with typical-year weather gives about 545 kWh per year per 325 W panel in Los Angeles and about 596 kWh in Palmdale (20° roof, facing south, 14% system losses).

How much power does it lose on a hot roof?

With γ = −0.364 %/°C, at a 77 °C cell temperature (hottest modeled hour in Palmdale) output is about 18.8% 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 = 51.7 V, Vmp at 74 °C cell = 32.9 V). Final design must follow the inverter manual and NEC 690.7.

Does it work with Enphase IQ8PLUS-72-2-US microinverters?

Voltage check against the Enphase datasheet: Voc when cold 51.7 V vs max input 60 V; Vmp when hot 32.9 V vs MPPT low 29 V; recommended module power 235–440 W. Confirm on the microinverter maker’s compatibility list.

Sources

California Energy Commission — Solar Equipment Lists, PV Module List, Inverter List (snapshot Oct 7, 2026).
JinkoSolar — datasheet THE MOST DEPENDABLE SOLAR BRAND.
JinkoSolar — manufacturer datasheet “Eagle HC 60M G2 315-335 Watt MONO PERC HALF CELL MODULE”.
Qcells — manufacturer datasheet “Q.PEAK DUO-G8+ 345-360 EN ENDURING HIGH”.
LG Electronics — datasheet Specification Sheet.
Kiwa PVEL — PV Module Reliability Scorecard, Top Performer lists.
NLR (formerly NREL) — System Advisor Model CEC inverter library (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 — APsystems (Alt Power System), Enphase, 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).