SunTegra STS-110M-B4U

Name: SunTegra STS-110M-B4U
Brand: SunTegra

24 cells, shingle. Power classes 110–114 W in the CEC list.

CEC listed · Oct 1, 2018UL 1703Building-integrated (BIPV)

Power class

Power (STC)110 WCEC nameplate
Efficiency≈16.7%calculated from area
%/°C Pmax−0.404CEC listing test
PTC / STC86.6%PTC 95 W (CEC)

Power classes

CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation · 2 models

Model	Pmax	Voc, V	Isc, A	Vmp, V	Imp, A	Efficiency	PTC	CEC listed
STS-110M-B4U	110 W	15.46	9.41	12.72	8.66	≈16.7%	95 W	Oct 1, 2018
STS-114M-B4U	114 W	15.52	9.68	12.78	8.92	≈17.3%	99 W	Jan 21, 2020

≈ efficiency = Pmax ÷ CEC-listed area 0.66 m².

Build & dimensions

CEC PV Module List (Oct 7, 2026)

Module area0.66 m² (7.1 ft²)CEC-listed area
Cells24 cells
Back coverBlack 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	−0.291 %/°C
Isc coefficient α	+0.038 %/°C
Vmp coefficient	−0.396 %/°C
Operating cell temperature	NOCT 57.3 °C

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
110 W	76.1 W	11.09 V × 6.86 A	21.2 W	97%
114 W	78.8 W	11.15 V × 7.07 A	22 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) · NLR PVWatts v8

CityColdest air, °CHottest cell, °C

16.5 V

Voc when cold

per panel

10.3 V

Vmp when hot

per panel

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.

Integrated roof products are wired per the manufacturer’s system design.

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	184	5,531	6.08
Palmdale	1,835	202	6,056	6.69
Chula Vista	1,696	187	5,597	6.11
Huntington Beach	1,643	181	5,422	5.89
Riverside	1,696	187	5,597	6.21
Santa Clarita	1,724	190	5,689	6.28

PVWatts models a standard roof-mounted module; integrated roof products are not modeled separately.

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

Questions & answers

How efficient is the SunTegra STS-110M-B4U?

Calculated from the panel area (0.66 m²): about 16.7% for the 110 W class. 110 W over 0.66 m² equals about 167 W per square meter.

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

PVWatts v8 with typical-year weather gives about 184 kWh per year per 110 W panel in Los Angeles and about 202 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.

Sources

California Energy Commission — Solar Equipment Lists, PV Module List (snapshot Oct 7, 2026).
NLR (formerly NREL) — PVWatts v8, NSRDB PSM v3 typical-year weather for Los Angeles, Palmdale, Chula Vista, Huntington Beach, Riverside, Santa Clarita.
Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).