39.1″ · 992 mm wide

Solar panelRECOM

RECOM RCM-295-6MB

Name: RECOM RCM-295-6MB
Brand: RECOM

60 cells. Power classes 250–315 W in the CEC list.

CEC listed · Apr 21, 2020UL 61730

Power class

Power (STC)295 WCEC nameplate
Efficiency≈18.3%calculated from area
%/°C Pmax−0.404CEC listing test
PTC / STC91.8%PTC 271 W (CEC)

Power classes

CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation · 8 models

Model	Pmax	Voc, V	Isc, A	Vmp, V	Imp, A	Efficiency	PTC	CEC listed
RCM-250-6MB	250 W	37.92	8.51	31.30	8.09	≈15.4%	225 W	—
RCM-260-6MB	260 W	38.52	8.66	31.70	8.30	≈16.0%	235 W	—
RCM-270-6MB	270 W	38.76	8.78	32.12	8.45	≈16.6%	244 W	—
RCM-295-6MB	295 W	39.60	9.55	32.60	9.05	≈18.3%	271 W	Apr 21, 2020
RCM-300-6MB	300 W	39.70	9.70	32.70	9.20	≈18.6%	276 W	Apr 21, 2020
RCM-305-6MB	305 W	39.80	9.80	32.80	9.30	≈18.9%	280 W	Apr 21, 2020
RCM-310-6MB	310 W	39.90	9.90	32.90	9.43	≈19.3%	285 W	Apr 21, 2020
RCM-315-6MB	315 W	40.00	10.00	33.00	9.55	≈19.6%	290 W	Apr 21, 2020

≈ efficiency = Pmax ÷ CEC-listed area 1.63 m².

Build & dimensions

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

Dimensions64.6 × 39.1 in1,640 × 992 mm
Module area1.63 m² (17.5 ft²)length × width
Cells60 cells
Back coverWhite backsheet

Heat & cold behaviour

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

	CEC listing test
Pmax coefficient γ	−0.404 %/°C
Voc coefficient β	−0.312 %/°C
Isc coefficient α	+0.051 %/°C
Operating cell temperature	NOCT 45.4 °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
250 W	183.4 W	28.26 V × 6.49 A	49 W	98%
260 W	190.6 W	28.62 V × 6.66 A	50.9 W	98%
270 W	196.6 W	29 V × 6.78 A	52.5 W	97%
295 W	218.6 W	30.25 V × 7.23 A	55.5 W	94%
300 W	222.9 W	30.34 V × 7.35 A	56.6 W	94%
305 W	226 W	30.44 V × 7.43 A	57.4 W	94%
310 W	229.9 W	30.53 V × 7.53 A	58.4 W	94%
315 W	233.5 W	30.62 V × 7.63 A	59.3 W	94%

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

42.4 V

Voc when cold

per panel

25.3 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	3–14
Solis (Ginlong) S6-EH1P10K-H-US	600 V	80–520 V	datasheet	4–14
Solis (Ginlong) Solis-1P7.6K-4G-US	600 V	100–500 V	datasheet	4–14
Qcells Q.VOLT H7.6SX	498 V	234–498 V	CEC test window	10–11

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	42.4 / 25.3 V	⚠ Works; below MPPT at peak heat	1.02
APsystems (Alt Power System) DS3-L	265–570 W	60 V	28–45 V	42.4 / 25.3 V	⚠ Works; below MPPT at peak heat	0.38
Enphase IQ8M-72-2-US	260–460 W	60 V	30–45 V	42.4 / 25.3 V	⚠ Works; below MPPT at peak heat	0.91
Enphase IQ8A-72-2-US	295–500 W	60 V	32–45 V	42.4 / 25.3 V	⚠ Works; below MPPT at peak heat	0.85

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	494	11,866	6.08
Palmdale	1,835	541	12,992	6.69
Chula Vista	1,696	500	12,008	6.11
Huntington Beach	1,643	485	11,632	5.89
Riverside	1,696	500	12,008	6.21
Santa Clarita	1,724	509	12,206	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 295 W panels

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

Panel	Pmax	Efficiency	γ Pmax (CEC)	Voc, V	Isc, A	Size	PVEL (product / brand)	SoCal permits (series)
RECOM RCM-295-6MB	295 W	≈18.3%	−0.404	39.6	9.55	64.6 in	—	—
REC Group REC295NP	295 W	≈18.2%	−0.351	39.4	9.76	—	brand 9× (2016–2025)	4
Silfab Solar SIL295NL	295 W	≈17.4%	−0.379	40	9.61	66.9 × 39.4 in	brand 7× (2017–2025)	2
Mission Solar Energy MSE300TS60	300 W	≈17.9%	−0.403	40	9.83	65.9 × 39.4 in	brand 2× (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 RECOM RCM-295-6MB?

Calculated from the panel area (1.63 m²): about 18.3% for the 295 W class. 295 W over 1.63 m² equals about 181 W per square meter.

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

PVWatts v8 with typical-year weather gives about 494 kWh per year per 295 W panel in Los Angeles and about 541 kWh in Palmdale (20° roof, facing south, 14% system losses).

How much power does it lose on a hot roof?

With γ = −0.404 %/°C, at a 77 °C cell temperature (hottest modeled hour in Palmdale) output is about 20.9% 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 3–14 panels per string (Voc at 2 °C = 42.4 V, Vmp at 74 °C cell = 25.3 V). Final design must follow the inverter manual and NEC 690.7.

Sources

California Energy Commission — Solar Equipment Lists, PV Module List, Inverter List (snapshot Oct 7, 2026).
Silfab Solar — datasheet SIL-310 NL BAA JUST ARRA -IN-.
Mission Solar Energy — datasheet PERC-60-305-310-1.
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).