Panasonic datasheet · Cali-Graf calculation · NLR PVWatts v8 · CEC PV Module List (Oct 7, 2026) · inverter datasheets · NLR SAM inverter library · CEC Grid Support Inverter List (Oct 7, 2026)
46.5 V
Voc when cold
per panel
32 V
Vmp when hot
per panel
12
Max panels / string
max DC 600 V
2
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.
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
2–12
Solis (Ginlong) S6-EH1P10K-H-US
600 V
80–520 V
datasheet
3–12
Solis (Ginlong) Solis-1P7.6K-4G-US
600 V
100–500 V
datasheet
4–12
Qcells Q.VOLT H7.6SX
498 V
234–498 V
CEC test window
8–10
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
46.5 / 32 V
✓ Within range
1.28
Enphase IQ8X-80-M-US
320–540 W
79.5 V
43–60 V
46.5 / 32 V
✗ Not a match: module voltage below MPPT range
0.97
APsystems (Alt Power System) DS3-L
265–570 W
60 V
28–45 V
46.5 / 32 V
✓ Within range
0.47
Enphase IQ8M-72-2-US
260–460 W
60 V
30–45 V
46.5 / 32 V
✓ Within range
1.14
Enphase IQ8A-72-2-US
295–500 W
60 V
32–45 V
46.5 / 32 V
✓ Within range
1.06
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
City
kWh / kW / yr
kWh / panel / yr
kWh / system / yr
Sun, kWh/m²/day
Los Angeles
1,676
620
11,782
6.08
Palmdale
1,835
679
12,900
6.69
Chula Vista
1,696
628
11,923
6.11
Huntington Beach
1,643
608
11,550
5.89
Riverside
1,696
628
11,923
6.21
Santa Clarita
1,724
638
12,120
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.
Who installs EVPVxxx panels in SoCal
building permits · CSLB License Master
15
Permits naming this series
Sep 2021 – Feb 2023
1
Licensed installers
CSLB license on the permit
2
Jurisdictions so far
LA County (unincorp.) (14), Los Angeles (1)
AB
Amerigreen Builders Inc
Studio City · CSLB #1023006
1 installApr 2022Los AngelesLicense: Work Comp Susp
Permits over time
Power class named in permit
370 W
9
380 W
5
360 W
1
Top ZIP codes
ZIP 912142
ZIP 907102
ZIP 906012
ZIP 917482
Other ZIP codes7
Typical system
median 7.6 kW, 20 panels (n = 12)
Only installer and ZIP level is shown — no homeowner names, street addresses or permit numbers. Permits from LA County (unincorp.) come without a contractor license, so they count toward totals but not toward installers. Counts grow as more permit portals are loaded.
Installed together with
building permits
Microinverters
Enphase IQ8+
8
Enphase IQ7+
2
Enphase IQ7A
2
Enphase IQ8M
2
Batteries
Enphase IQ Battery 10
3
Number of permits naming both this panel series and the product; 14 of 15 permits list other equipment.
Compare with similar 370 W panels
CEC PV Module List (Oct 7, 2026) · Kiwa PVEL Scorecard · Canadian Solar datasheet · building permits
Panel
Pmax
Efficiency
γ Pmax (CEC)
Voc, V
Isc, A
PVEL (product / brand)
SoCal permits (series)
Panasonic EVPV 370
370 W
≥21.2%
−0.258
44.1
10.55
—
15
LONGi LR4-60HPB-370M
370 W
≈20.9%
−0.339
41.2
11.5
product 2021, 2022
193
Canadian Solar CS3N-375MS {Blk}
375 W
≈19%
−0.342
43.5
11.2
product 2023
46
REC Group REC370AA
370 W
≈21.9%
−0.258
44.1
10.55
brand 9× (2016–2025)
30
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 Panasonic EVPV 370?
The Panasonic datasheet guarantees at least 21.2% module efficiency for the 370 W class. 370 W over 1.75 m² equals about 212 W per square meter.
How much energy does one panel produce in Los Angeles or Palmdale?
PVWatts v8 with typical-year weather gives about 620 kWh per year per 370 W panel in Los Angeles and about 679 kWh in Palmdale (20° roof, facing south, 14% system losses).
How much power does it lose on a hot roof?
With γ = −0.26 %/°C, at a 77 °C cell temperature (hottest modeled hour in Palmdale) output is about 13.5% 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 2–12 panels per string (Voc at 2 °C = 46.5 V, Vmp at 74 °C cell = 32 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 46.5 V vs max input 60 V; Vmp when hot 32 V vs MPPT low 29 V; recommended module power 235–440 W. Confirm on the microinverter maker’s compatibility list.
Building permits name this series 15 times (Sep 2021 – Feb 2023). The most active licensed installers are Amerigreen Builders Inc.
Sources
California Energy Commission — Solar Equipment Lists, PV Module List, Inverter List (snapshot Oct 7, 2026).
Panasonic — manufacturer datasheet “EVERVOLT™ SOLAR MODULE SERIES 370W / 360W TRUST. BUILT IN.” (preliminary).
Canadian Solar — manufacturer datasheet “HiKu Mono PERC CS3N-400|405|410|415|420|425MS MORE POWER”.
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 — Los Angeles County Public Works (EPIC-LA, unincorporated areas) (Sep 2021 – Feb 2023); LADBS, City of Los Angeles (Apr 2022). Equipment matched from permit descriptions by model number.
Contractors State License Board — License Master (contractor names and license status), as of Oct 5, 2026.
Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).
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