--- title: "FuturaSun FU 450 M vs FuturaSun FU 590 MV - Solar Panel Comparison | ComparePV" description: "Compare FuturaSun FU 450 M vs FuturaSun FU 590 MV side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/futurasun-fu-450-m/futurasun-fu-590-mv" image: "https://comparepv.com/og/compare/panels/futurasun-fu-450-m/futurasun-fu-590-mv.png" updated: 2026-09-11 --- # FuturaSun FU 450 M vs FuturaSun FU 590 MV 590 MV leads on the differences that matter The largest is rated power: 140 W more power. 4 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [FuturaSun FU 450 M](https://comparepv.com/panel/futurasun-fu-450-m) | [FuturaSun FU 590 MV](https://comparepv.com/panel/futurasun-fu-590-mv) | | Manufacturer | FuturaSun | FuturaSun | | Power | 450 Wp | 590 Wp | | Efficiency | 22.52 % | 22.84 % | | Technology | PERC | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 450 M | 590 MV | Difference | | --- | --- | --- | --- | | Rated power | 450 Wp | 590 Wp | +140 W for 590 MV | | Performance warranty | 25 yrs | 30 yrs | +5 yrs for 590 MV | | Weight | 21.3 kg | 32.0 kg | -10.7 kg for 450 M | | Weight per kWp | 47.3 kg/kWp | 54.2 kg/kWp | -6.9 kg/kWp for 450 M | | Module efficiency | 22.52 % | 22.84 % | +0.32 pp for 590 MV | | Open-circuit voltage | 35.47 V | 51.28 V | 15.81 V apart | | Module area | 1.998 m² | 2.583 m² | 0.585 m² apart | | Short-circuit current | 15.97 A | 14.64 A | 1.33 A apart | | Cell technology | PERC | TOPCon | PERC vs TOPCon | | Power density | 225.2 Wp/m² | 228.4 Wp/m² | +3.2 Wp/m² for 590 MV | | Voltage at max power | 30.01 V | 42.65 V | 12.64 V apart | | Cell count | 96 | 144 | 48 cells apart | | Bifacial | No | Yes | No vs Yes | | Current at max power | 15.00 A | 13.84 A | 1.16 A apart | | Dimensions | 1762x1134x30 mm | 2278x1134x30 mm | 1762x1134x30 mm vs 2278x1134x30 mm | ## Every compared parameter | Parameter | 450 M | 590 MV | | --- | --- | --- | | Rated power | 450 Wp | 590 Wp | | Module efficiency | 22.52 % | 22.84 % | | Power density | 225.2 Wp/m² | 228.4 Wp/m² | | Open-circuit voltage | 35.47 V | 51.28 V | | Voltage at max power | 30.01 V | 42.65 V | | Short-circuit current | 15.97 A | 14.64 A | | Current at max power | 15.00 A | 13.84 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 1762x1134x30 mm | 2278x1134x30 mm | | Module area | 1.998 m² | 2.583 m² | | Weight | 21.3 kg | 32.0 kg | | Weight per kWp | 47.3 kg/kWp | 54.2 kg/kWp | | Product warranty | 15 yrs | 15 yrs | | Performance warranty | 25 yrs | 30 yrs | | Annual degradation | 0.40 %/yr | 0.40 %/yr | | Cell technology | PERC | TOPCon | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 96 | 144 | | Bifacial | No | Yes | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other. - **Cumulative output, 450 M:** 15,098 kWh - **Cumulative output, 590 MV:** 19,796 kWh - **Gap:** 4,698 kWh ## Output when hot | Condition | Cell temperature | 450 M | 590 MV | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 450 W | 590 W | 100.0% of rated power | | Cool, bright day | 40 °C | 430 W | 564 W | 95.7% of rated power | | Typical summer roof | 55 °C | 411 W | 539 W | 91.3% of rated power | | Hot roof | 70 °C | 391 W | 513 W | 87.0% of rated power | ## Against the whole database | Measure | 450 M | 590 MV | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #4,167 | #2,672 | 14,129 | 590 MV leads by 1,495 places | | Power density | #4,284 | #2,653 | 14,129 | 590 MV leads by 1,631 places | | Heat behaviour | #2,220 | #2,220 | 14,129 | Tied - the same position in the database | | Weight | #1,641 | #8,557 | 14,129 | 450 M leads by 6,916 places | | Warranty | #9,912 | #21 | 14,129 | 590 MV leads by 9,891 places | | Overall | #9,413 | #3,178 | 14,129 | 590 MV leads by 6,235 places | ## Questions ### Which panel is better: FuturaSun FU 450 M or FuturaSun FU 590 MV? According to our database: **FuturaSun FU 590 MV** has higher module efficiency (**22.84%** vs **22.52%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of FuturaSun FU 450 M and FuturaSun FU 590 MV? **FuturaSun FU 450 M** has a module efficiency of **22.52%**, while **FuturaSun FU 590 MV** is **22.84%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does FuturaSun FU 450 M use vs FuturaSun FU 590 MV? **FuturaSun FU 450 M** uses **PERC** cells; **FuturaSun FU 590 MV** 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 FuturaSun FU 450 M and FuturaSun FU 590 MV? **FuturaSun FU 450 M** has a **25 years** power warranty; **FuturaSun FU 590 MV** 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 FuturaSun FU 450 M and FuturaSun FU 590 MV bifacial panels? **FuturaSun FU 590 MV** is bifacial (captures light from both faces); **FuturaSun FU 450 M** is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath. ## Related comparisons - [FuturaSun FU 450 M vs FuturaSun FU 720 MV](https://comparepv.com/compare/futurasun-fu-450-m/futurasun-fu-720-mv) - 15 differences, the largest is module efficiency - [FuturaSun FU 450 M vs FuturaSun FU 710 MV](https://comparepv.com/compare/futurasun-fu-450-m/futurasun-fu-710-mv) - 15 differences, the largest is rated power - [FuturaSun FU 450 M vs FuturaSun FU 700 MV](https://comparepv.com/compare/futurasun-fu-450-m/futurasun-fu-700-mv) - 13 differences, the largest is rated power - [FuturaSun FU 450 M vs FuturaSun FU 585 MV](https://comparepv.com/compare/futurasun-fu-450-m/futurasun-fu-585-mv) - 13 differences, the largest is rated power - [FuturaSun FU 450 M vs FuturaSun FU 580 MV](https://comparepv.com/compare/futurasun-fu-450-m/futurasun-fu-580-mv) - 13 differences, the largest is rated power - [FuturaSun FU 450 M vs FuturaSun FU 575 MV](https://comparepv.com/compare/futurasun-fu-450-m/futurasun-fu-575-mv) - 14 differences, the largest is rated power --- Source: https://comparepv.com/compare/futurasun-fu-450-m/futurasun-fu-590-mv 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.