--- title: "KIOTO Solar KPV 440 Wp HCB vs KIOTO Solar KPV 450 Wp HC NE - Solar Panel Comparison | ComparePV" description: "Compare KIOTO Solar KPV 440 Wp HCB vs KIOTO Solar KPV 450 Wp HC NE side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/kioto-solar-kpv-440-wp-hcb/kioto-solar-kpv-450-wp-hc-ne" updated: 2026-09-11 --- # KIOTO Solar KPV 440 Wp HCB vs KIOTO Solar KPV 450 Wp HC NE 440 Wp HCB leads on the differences that matter The largest is performance warranty: 5 yrs longer. 3 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [KIOTO Solar KPV 440 Wp HCB](https://comparepv.com/panel/kioto-solar-kpv-440-wp-hcb) | [KIOTO Solar KPV 450 Wp HC NE](https://comparepv.com/panel/kioto-solar-kpv-450-wp-hc-ne) | | Manufacturer | KIOTO Solar | KIOTO Solar | | Power | 440 Wp | 450 Wp | | Efficiency | 22.02 % | 22.52 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 440 Wp HCB | 450 Wp HC NE | Difference | | --- | --- | --- | --- | | Performance warranty | 30 yrs | 25 yrs | +5 yrs for 440 Wp HCB | | Annual degradation | 0.40 %/yr | 0.70 %/yr | -0.30 %/yr for 440 Wp HCB | | Module efficiency | 22.02 % | 22.52 % | +0.50 pp for 450 Wp HC NE | | Product warranty | 30 yrs | 12 yrs | +18 yrs for 440 Wp HCB | | Temperature coefficient | -0.320 %/°C | -0.300 %/°C | +0.020 %/°C for 450 Wp HC NE | | Weight | 22.5 kg | 25.5 kg | -3.0 kg for 440 Wp HCB | | Weight per kWp | 51.1 kg/kWp | 56.7 kg/kWp | -5.5 kg/kWp for 440 Wp HCB | | Open-circuit voltage | 39.78 V | 35.14 V | 4.64 V apart | | Short-circuit current | 13.63 A | 16.01 A | 2.38 A apart | | Power density | 220.2 Wp/m² | 225.2 Wp/m² | +5.0 Wp/m² for 450 Wp HC NE | | Rated power | 440 Wp | 450 Wp | +10 W for 450 Wp HC NE | | Voltage at max power | 34.06 V | 29.14 V | 4.92 V apart | | Current at max power | 12.93 A | 15.54 A | 2.61 A apart | | Cell count | 108 | 96 | 12 cells apart | | Bifacial | No | Yes | No vs Yes | | Dimensions | 1748x1143x35 mm | 1762x1134x35 mm | 1748x1143x35 mm vs 1762x1134x35 mm | ## Every compared parameter | Parameter | 440 Wp HCB | 450 Wp HC NE | | --- | --- | --- | | Rated power | 440 Wp | 450 Wp | | Module efficiency | 22.02 % | 22.52 % | | Power density | 220.2 Wp/m² | 225.2 Wp/m² | | Open-circuit voltage | 39.78 V | 35.14 V | | Voltage at max power | 34.06 V | 29.14 V | | Short-circuit current | 13.63 A | 16.01 A | | Current at max power | 12.93 A | 15.54 A | | Temperature coefficient | -0.320 %/°C | -0.300 %/°C | | Dimensions | 1748x1143x35 mm | 1762x1134x35 mm | | Module area | 1.998 m² | 1.998 m² | | Weight | 22.5 kg | 25.5 kg | | Weight per kWp | 51.1 kg/kWp | 56.7 kg/kWp | | Product warranty | 30 yrs | 12 yrs | | Performance warranty | 30 yrs | 25 yrs | | Annual degradation | 0.40 %/yr | 0.70 %/yr | | Cell technology | TOPCon | TOPCon | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 108 | 96 | | Bifacial | No | Yes | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year - **Cumulative output, 440 Wp HCB:** 14,763 kWh - **Cumulative output, 450 Wp HC NE:** 14,070 kWh - **Gap:** 693 kWh ## Output when hot | Condition | Cell temperature | 440 Wp HCB | 450 Wp HC NE | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 440 W | 450 W | 100.0% of rated power | | Cool, bright day | 40 °C | 419 W | 430 W | 95.2% of rated power | | Typical summer roof | 55 °C | 398 W | 410 W | 90.4% of rated power | | Hot roof | 70 °C | 377 W | 389 W | 85.6% of rated power | ## Against the whole database | Measure | 440 Wp HCB | 450 Wp HC NE | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #6,329 | #4,108 | 14,005 | 450 Wp HC NE leads by 2,221 places | | Power density | #6,326 | #4,225 | 14,005 | 450 Wp HC NE leads by 2,101 places | | Heat behaviour | #8,312 | #6,093 | 14,005 | 450 Wp HC NE leads by 2,219 places | | Weight | #4,485 | #10,792 | 14,005 | 440 Wp HCB leads by 6,307 places | | Warranty | #21 | #9,798 | 14,005 | 440 Wp HCB leads by 9,777 places | | Overall | #5,966 | #9,936 | 14,005 | 440 Wp HCB leads by 3,970 places | ## Questions ### Which panel is better: KIOTO Solar KPV 440 Wp HCB or KIOTO Solar KPV 450 Wp HC NE? According to our database: **KIOTO Solar KPV **450 Wp** HC NE** has higher module efficiency (**22.52%** vs **22.02%**); **KIOTO Solar KPV **450 Wp** HC NE** tolerates heat better (temp coeff **-0.300%/°C** vs **-0.320%/°C**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of KIOTO Solar KPV 440 Wp HCB and KIOTO Solar KPV 450 Wp HC NE? **KIOTO Solar KPV **440 Wp** HCB** has a module efficiency of **22.02%**, while **KIOTO Solar KPV **450 Wp** HC NE** is **22.52%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does KIOTO Solar KPV 440 Wp HCB use vs KIOTO Solar KPV 450 Wp HC NE? **KIOTO Solar KPV **440 Wp** HCB** uses **TOPCon** cells; **KIOTO Solar KPV **450 Wp** HC NE** 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 KIOTO Solar KPV 440 Wp HCB and KIOTO Solar KPV 450 Wp HC NE? **KIOTO Solar KPV **440 Wp** HCB** has a **30 years** power warranty; **KIOTO Solar KPV **450 Wp** HC NE** has a **25 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 KIOTO Solar KPV 440 Wp HCB and KIOTO Solar KPV 450 Wp HC NE bifacial panels? **KIOTO Solar KPV **450 Wp** HC NE** is bifacial (captures light from both faces); **KIOTO Solar KPV **440 Wp** HCB** is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath. ## Related comparisons - [KIOTO Solar KPV 440 Wp HCB vs KIOTO Solar KPV 450Wp HC](https://comparepv.com/compare/kioto-solar-kpv-440-wp-hcb/kioto-solar-kpv-450wp-hc) - 3 differences, the largest is module efficiency - [KIOTO Solar KPV 440 Wp HCB vs KIOTO Solar KPV 445Wp HC](https://comparepv.com/compare/kioto-solar-kpv-440-wp-hcb/kioto-solar-kpv-445wp-hc) - One difference: module efficiency - [KIOTO Solar KPV 450 Wp HC NE vs KIOTO Solar KPV 450Wp HC NE (G/G-TC)](https://comparepv.com/compare/kioto-solar-kpv-450-wp-hc-ne/kioto-solar-kpv-450wp-hc-ne-g-g-tc) - 5 differences, the largest is product warranty - [KIOTO Solar KPV 450 Wp HC NE vs KIOTO Solar KPV 445Wp HC NE (G/G-TC)](https://comparepv.com/compare/kioto-solar-kpv-450-wp-hc-ne/kioto-solar-kpv-445wp-hc-ne-g-g-tc) - 9 differences, the largest is product warranty - [KIOTO Solar KPV 450 Wp HC NE vs KIOTO Solar KPV 440Wp HC NE (G/G-TC)](https://comparepv.com/compare/kioto-solar-kpv-450-wp-hc-ne/kioto-solar-kpv-440wp-hc-ne-g-g-tc) - 9 differences, the largest is product warranty --- Source: https://comparepv.com/compare/kioto-solar-kpv-440-wp-hcb/kioto-solar-kpv-450-wp-hc-ne 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.