--- title: "BYD NLBK-36-590 vs BYD NSBK-33-715 - Solar Panel Comparison | ComparePV" description: "Compare BYD NLBK-36-590 vs BYD NSBK-33-715 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/byd-nlbk-36-590-1/byd-nsbk-33-715" updated: 2026-09-11 --- # BYD NLBK-36-590 vs BYD NSBK-33-715 NSBK-33-715 leads on the differences that matter The largest is rated power: 125 W more power. 9 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [BYD NLBK-36-590](https://comparepv.com/panel/byd-nlbk-36-590-1) | [BYD NSBK-33-715](https://comparepv.com/panel/byd-nsbk-33-715) | | Manufacturer | BYD | BYD | | Power | 590 Wp | 715 Wp | | Efficiency | 22.84 % | 23.03 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | NLBK-36-590 | NSBK-33-715 | Difference | | --- | --- | --- | --- | | Rated power | 590 Wp | 715 Wp | +125 W for NSBK-33-715 | | Weight | 32.0 kg | 38.3 kg | -6.3 kg for NLBK-36-590 | | Temperature coefficient | -0.300 %/°C | -0.278 %/°C | +0.022 %/°C for NSBK-33-715 | | Short-circuit current | 14.63 A | 18.23 A | 3.60 A apart | | Module area | 2.583 m² | 3.106 m² | 0.523 m² apart | | Open-circuit voltage | 51.28 V | 49.22 V | 2.06 V apart | | Current at max power | 13.84 A | 17.28 A | 3.44 A apart | | Cell count | 144 | 132 | 12 cells apart | | Dimensions | 2278x1134x30 mm | 2384x1303x33 mm | 2278x1134x30 mm vs 2384x1303x33 mm | | Voltage at max power | 42.66 V | 41.38 V | 1.28 V apart | ## Every compared parameter | Parameter | NLBK-36-590 | NSBK-33-715 | | --- | --- | --- | | Rated power | 590 Wp | 715 Wp | | Module efficiency | 22.84 % | 23.03 % | | Power density | 228.4 Wp/m² | 230.2 Wp/m² | | Open-circuit voltage | 51.28 V | 49.22 V | | Voltage at max power | 42.66 V | 41.38 V | | Short-circuit current | 14.63 A | 18.23 A | | Current at max power | 13.84 A | 17.28 A | | Temperature coefficient | -0.300 %/°C | -0.278 %/°C | | Dimensions | 2278x1134x30 mm | 2384x1303x33 mm | | Module area | 2.583 m² | 3.106 m² | | Weight | 32.0 kg | 38.3 kg | | Weight per kWp | 54.2 kg/kWp | 53.6 kg/kWp | | Product warranty | 12 yrs | 12 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.40 %/yr | 0.40 %/yr | | Cell technology | TOPCon | TOPCon | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 144 | 132 | | Bifacial | Yes | Yes | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year - **Cumulative output, NLBK-36-590:** 19,796 kWh - **Cumulative output, NSBK-33-715:** 23,990 kWh - **Gap:** 4,194 kWh ## Output when hot | Condition | Cell temperature | NLBK-36-590 | NSBK-33-715 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 590 W | 715 W | 100.0% of rated power | | Cool, bright day | 40 °C | 563 W | 685 W | 95.5% of rated power | | Typical summer roof | 55 °C | 537 W | 655 W | 91.0% of rated power | | Hot roof | 70 °C | 510 W | 626 W | 86.5% of rated power | ## Against the whole database | Measure | NLBK-36-590 | NSBK-33-715 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #2,617 | #1,744 | 14,005 | NSBK-33-715 leads by 873 places | | Power density | #2,598 | #2,018 | 14,005 | NSBK-33-715 leads by 580 places | | Heat behaviour | #6,093 | #1,295 | 14,005 | NSBK-33-715 leads by 4,798 places | | Weight | #8,477 | #7,566 | 14,005 | NSBK-33-715 leads by 911 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #3,762 | #664 | 14,005 | NSBK-33-715 leads by 3,098 places | ## Questions ### Which panel is better: BYD NLBK-36-590 or BYD NSBK-33-715? According to our database: **BYD NSBK-33-715** has higher module efficiency (**23.03%** vs **22.84%**); **BYD NSBK-33-715** tolerates heat better (temp coeff **-0.278%/°C** vs **-0.300%/°C**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of BYD NLBK-36-590 and BYD NSBK-33-715? **BYD NLBK-36-590** has a module efficiency of **22.84%**, while **BYD NSBK-33-715** is **23.03%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does BYD NLBK-36-590 use vs BYD NSBK-33-715? **BYD NLBK-36-590** uses **TOPCon** cells; **BYD NSBK-33-715** uses **TOPCon**. Modern **n-type** technologies (**TOPCon**, **HJT**, BC) typically deliver higher efficiency and lower degradation compared to older **PERC** (p-type) cells. ### What is the warranty on BYD NLBK-36-590 and BYD NSBK-33-715? **BYD NLBK-36-590** has a **30 years** power warranty; **BYD NSBK-33-715** has a **30 years** power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80**-87%**). Product (materials) warranties are usually shorter. ### Are BYD NLBK-36-590 and BYD NSBK-33-715 bifacial panels? Both **BYD NLBK-36-590** and **BYD NSBK-33-715** are bifacial - they capture reflected light from the ground, which can add 5**-15%** more annual energy on ground-mount or elevated rooftop installations with a light surface beneath. ## Related comparisons - [BYD NLBK-36-590 vs BYD NLBK-36-600](https://comparepv.com/compare/byd-nlbk-36-590-1/byd-nlbk-36-600-1) - 3 differences, the largest is module efficiency - [BYD NLBK-36-590 vs BYD NLBK-36 600](https://comparepv.com/compare/byd-nlbk-36-590-1/byd-nlbk-36-600) - 8 differences, the largest is temperature coefficient - [BYD NLBK-36-590 vs BYD NLBK-36-595](https://comparepv.com/compare/byd-nlbk-36-590-1/byd-nlbk-36-595-1) - The same specification on paper - [BYD NLBK-36-590 vs BYD NLBK-36 595](https://comparepv.com/compare/byd-nlbk-36-590-1/byd-nlbk-36-595) - 5 differences, the largest is temperature coefficient - [BYD NLBK-36-590 vs BYD NLBK-36 590](https://comparepv.com/compare/byd-nlbk-36-590-1/byd-nlbk-36-590) - 5 differences, the largest is temperature coefficient - [BYD NLBK-36-590 vs BYD NLBK-36-585](https://comparepv.com/compare/byd-nlbk-36-590-1/byd-nlbk-36-585-1) - The same specification on paper --- Source: https://comparepv.com/compare/byd-nlbk-36-590-1/byd-nsbk-33-715 Not in this file, on the page: the thirty-year yield curve year by year at a cell temperature you pick and a written summary generated on request.