California
LADWP solar bill explained144 half-cut cells, PERC, bifacial, glass (dual-glass module). Power classes 520–550 W in the CEC list.
| Model | Pmax | Voc, V | Isc, A | Vmp, V | Imp, A | Efficiency | PTC | CEC listed |
|---|---|---|---|---|---|---|---|---|
| Bi-55-520 | 520 W | 49.01 | 13.55 | 41.14 | 12.65 | ≥20.2% | 480 W | Sep 12, 2022 |
| Bi-55-525 | 525 W | 49.16 | 13.63 | 41.29 | 12.73 | ≥20.4% | 485 W | Sep 12, 2022 |
| Bi-55-530 | 530 W | 49.31 | 13.69 | 41.45 | 12.80 | ≥20.6% | 489 W | Sep 12, 2022 |
| Bi-55-535 | 535 W | 49.46 | 13.76 | 41.60 | 12.88 | ≥20.8% | 494 W | Sep 12, 2022 |
| Bi-55-540 | 540 W | 49.61 | 13.83 | 41.75 | 12.95 | ≥21.0% | 499 W | Sep 12, 2022 |
| Bi-55-545 | 545 W | 49.76 | 13.90 | 41.90 | 13.02 | ≥21.2% | 504 W | Sep 12, 2022 |
| Bi-55-550 | 550 W | 49.91 | 13.96 | 42.03 | 13.08 | ≥21.4% | 508 W | Oct 11, 2023 |
| Datasheet | CEC listing test | |
|---|---|---|
| Pmax coefficient γ | −0.34 %/°C | −0.371 %/°C |
| Voc coefficient β | −0.25 %/°C | −0.275 %/°C |
| Isc coefficient α | +0.05 %/°C | +0.035 %/°C |
| Vmp coefficient | ≈ −0.39 %/°C | — |
| Operating cell temperature | NMOT 43 ± 2 °C | NOCT 46.7 °C |
| Class | Pmax, W | Voc, V | Isc, A | Vmp, V | Imp, A |
|---|---|---|---|---|---|
| 520 W | 391.9 | 46.00 | 10.94 | 37.70 | 10.34 |
| 525 W | 395.6 | 46.10 | 11.00 | 37.90 | 10.40 |
| 530 W | 399.2 | 46.20 | 11.05 | 38.00 | 10.45 |
| 535 W | 403.1 | 46.40 | 11.11 | 38.20 | 10.51 |
| 540 W | 406.7 | 46.50 | 11.16 | 38.40 | 10.56 |
| 545 W | 410.4 | 46.70 | 11.22 | 38.50 | 10.62 |
| 550 W | 414.1 | 46.80 | 11.27 | 38.80 | 10.68 |
| Class | Pmax at NOCT | Vmp × Imp at NOCT | Pmax at 200 W/m² | Low-light efficiency vs STC |
|---|---|---|---|---|
| 520 W | 384.5 W | 37.5 V × 10.25 A | 100.4 W | 97% |
| 525 W | 388.4 W | 37.64 V × 10.32 A | 101.4 W | 97% |
| 530 W | 392 W | 37.78 V × 10.38 A | 102.4 W | 97% |
| 535 W | 395.9 W | 37.92 V × 10.44 A | 103.4 W | 97% |
| 540 W | 399.5 W | 38.06 V × 10.5 A | 104.3 W | 97% |
| 545 W | 403.1 W | 38.19 V × 10.55 A | 105.3 W | 97% |
| 550 W | 406.2 W | 38.31 V × 10.6 A | 106.1 W | 96% |
| Year | Recognition |
|---|---|
| 2024 | Test Category High Achiever |
| 2025 | Overall Highest Achiever |
| 2026 | Overall Highest Achiever; High achievement in performance; High achievement in reliability; Performance discipline high achiever (Temperature coefficient, Iam, Letid); Quality discipline high achiever (BOM verification); Reliability discipline high achiever (Damp heat, Pid, Tc) |
| 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 |
| Microinverter | Recommended module power | Max DC input | MPPT | Voc cold / Vmp hot | Check | DC/AC |
|---|---|---|---|---|---|---|
| Enphase IQ8X-80-M-US | 320–540 W | 79.5 V | 43–60 V | 52.3 / 33.7 V | ✗ Not a match: module voltage below MPPT range | 1.41 |
| APsystems (Alt Power System) DS3-L | 265–570 W | 60 V | 28–45 V | 52.3 / 33.7 V | ✓ Within range | 0.69 |
| City | kWh / kW / yr | kWh / panel / yr | kWh / system / yr | Sun, kWh/m²/day |
|---|---|---|---|---|
| Los Angeles | 1,676 | 897 | 11,657 | 6.08 |
| Palmdale | 1,835 | 982 | 12,762 | 6.69 |
| Chula Vista | 1,696 | 907 | 11,796 | 6.11 |
| Huntington Beach | 1,643 | 879 | 11,427 | 5.89 |
| Riverside | 1,696 | 907 | 11,796 | 6.21 |
| Santa Clarita | 1,724 | 922 | 11,990 | 6.28 |
| Panel | Pmax | Efficiency | γ Pmax (CEC) | Voc, V | Isc, A | Size | PVEL (product / brand) | SoCal permits (series) |
|---|---|---|---|---|---|---|---|---|
| Waaree Bi-55 535 | 535 W | ≥20.8% | −0.371 | 49.46 | 13.76 | 89.4 × 44.6 in | brand 5× | — |
| JA Solar JAM72D30-535/MB | 535 W | ≈21.2% | −0.330 | 49.45 | 13.79 | — | product 2023, 2024 | 3 |
| Canadian Solar CS6W-535MB-AG | 535 W | ≈20.8% | −0.324 | 49 | 13.85 | 89.2 × 44.6 in | product 2024 | 1 |
| LONGi LR5-72HBD-535M | 535 W | ≥20.9% | −0.323 | 49.35 | 13.78 | 88.8 × 44.6 in | product 2026 | 1 |
The Waaree datasheet guarantees at least 20.8% module efficiency for the 535 W class (up to 21.4% for 550 W). 535 W over 2.57 m² equals about 208 W per square meter.
PVWatts v8 with typical-year weather gives about 897 kWh per year per 535 W panel in Los Angeles and about 982 kWh in Palmdale (20° roof, facing south, 14% system losses).
With γ = −0.34 %/°C, at a 77 °C cell temperature (hottest modeled hour in Palmdale) output is about 17.6% below the STC rating.
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 = 52.3 V, Vmp at 74 °C cell = 33.7 V). Final design must follow the inverter manual and NEC 690.7.
Voltage check against the APsystems (Alt Power System) datasheet: Voc when cold 52.3 V vs max input 60 V; Vmp when hot 33.7 V vs MPPT low 28 V; recommended module power 265–570 W. Confirm on the microinverter maker’s compatibility list.
12 years on the product and 30 years on performance (manufacturer datasheet).
89.4 × 44.6 × 1.38 in (2,272 × 1,133 × 35 mm), 71.7 lb (32.5 kg).
Yes, bifaciality 70 ± 10%. Rear gain depends on mounting height and ground reflectance.