--- title: "HT-SAAE HT54-18X(ND)-F 435W vs HT-SAAE HT54-18X(ND)-F 445W - Solar Panel Comparison | ComparePV" description: "Compare HT-SAAE HT54-18X(ND)-F 435W vs HT-SAAE HT54-18X(ND)-F 445W side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/ht-saae-ht54-18x-nd-f-435w/ht-saae-ht54-18x-nd-f-445w" updated: 2026-09-11 --- # HT-SAAE HT54-18X(ND)-F 435W vs HT-SAAE HT54-18X(ND)-F 445W 4 differences, and they point both ways The largest is module area: 0.045 m² apart. 15 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [HT-SAAE HT54-18X(ND)-F 435W](https://comparepv.com/panel/ht-saae-ht54-18x-nd-f-435w) | [HT-SAAE HT54-18X(ND)-F 445W](https://comparepv.com/panel/ht-saae-ht54-18x-nd-f-445w) | | Manufacturer | HT-SAAE | HT-SAAE | | Power | 435 Wp | 445 Wp | | Efficiency | 22.30 % | 22.30 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 435W | 445W | Difference | | --- | --- | --- | --- | | Module area | 1.953 m² | 1.998 m² | 0.045 m² apart | | Rated power | 435 Wp | 445 Wp | +10 W for 445W | | Weight | 24.0 kg | 25.0 kg | -1.0 kg for 435W | | Dimensions | 1722x1134x30 mm | 1762x1134x30 mm | 1722x1134x30 mm vs 1762x1134x30 mm | ## Every compared parameter | Parameter | 435W | 445W | | --- | --- | --- | | Rated power | 435 Wp | 445 Wp | | Module efficiency | 22.30 % | 22.30 % | | Power density | 222.8 Wp/m² | 222.7 Wp/m² | | Open-circuit voltage | 38.40 V | 38.70 V | | Voltage at max power | 32.00 V | 32.40 V | | Short-circuit current | 14.31 A | 14.47 A | | Current at max power | 13.60 A | 13.76 A | | Temperature coefficient | -0.310 %/°C | -0.310 %/°C | | Dimensions | 1722x1134x30 mm | 1762x1134x30 mm | | Module area | 1.953 m² | 1.998 m² | | Weight | 24.0 kg | 25.0 kg | | Weight per kWp | 55.2 kg/kWp | 56.2 kg/kWp | | Product warranty | 30 yrs | 30 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 | 108 | 108 | | Bifacial | Yes | Yes | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.310 %/°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, 435W:** 14,595 kWh - **Cumulative output, 445W:** 14,931 kWh - **Gap:** 336 kWh ## Output when hot | Condition | Cell temperature | 435W | 445W | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 435 W | 445 W | 100.0% of rated power | | Cool, bright day | 40 °C | 415 W | 424 W | 95.3% of rated power | | Typical summer roof | 55 °C | 395 W | 404 W | 90.7% of rated power | | Hot roof | 70 °C | 374 W | 383 W | 86.0% of rated power | ## Against the whole database | Measure | 435W | 445W | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #5,100 | #5,100 | 14,005 | Tied - the same position in the database | | Power density | #5,150 | #5,302 | 14,005 | 435W leads by 152 places | | Heat behaviour | #8,005 | #8,005 | 14,005 | Tied - the same position in the database | | Weight | #9,588 | #10,457 | 14,005 | 435W leads by 869 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #5,929 | #5,606 | 14,005 | 445W leads by 323 places | ## Questions ### Which panel is better: HT-SAAE HT54-18X(ND)-F 435W or HT-SAAE HT54-18X(ND)-F 445W? According to our database: both panels are closely matched on key specs - the decision often comes down to price and local availability. See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of HT-SAAE HT54-18X(ND)-F 435W and HT-SAAE HT54-18X(ND)-F 445W? **HT-SAAE HT54-18X(ND)-F **435 W**** has a module efficiency of **22.30%**, while **HT-SAAE HT54-18X(ND)-F **445 W**** is **22.30%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does HT-SAAE HT54-18X(ND)-F 435W use vs HT-SAAE HT54-18X(ND)-F 445W? **HT-SAAE HT54-18X(ND)-F **435 W**** uses **TOPCon** cells; **HT-SAAE HT54-18X(ND)-F **445 W**** 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 HT-SAAE HT54-18X(ND)-F 435W and HT-SAAE HT54-18X(ND)-F 445W? **HT-SAAE HT54-18X(ND)-F **435 W**** has a **30 years** power warranty; **HT-SAAE HT54-18X(ND)-F **445 W**** 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 HT-SAAE HT54-18X(ND)-F 435W and HT-SAAE HT54-18X(ND)-F 445W bifacial panels? Both **HT-SAAE HT54-18X(ND)-F **435 W**** and **HT-SAAE HT54-18X(ND)-F **445 W**** 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 - [HT-SAAE HT54-18X(ND)-F 435W vs HT-SAAE HT54-18X(ND)-F 460W](https://comparepv.com/compare/ht-saae-ht54-18x-nd-f-435w/ht-saae-ht54-18x-nd-f-460w) - 7 differences, the largest is module efficiency - [HT-SAAE HT54-18X(ND)-F 435W vs HT-SAAE HT54-18X(ND)-F 455W](https://comparepv.com/compare/ht-saae-ht54-18x-nd-f-435w/ht-saae-ht54-18x-nd-f-455w) - 6 differences, the largest is module efficiency - [HT-SAAE HT54-18X(ND)-F 435W vs HT-SAAE HT54-18X(ND)-F 450W](https://comparepv.com/compare/ht-saae-ht54-18x-nd-f-435w/ht-saae-ht54-18x-nd-f-450w) - 5 differences, the largest is rated power - [HT-SAAE HT54-18X(ND)-F 435W vs HT-SAAE HT54-18X(ND)-F 440W](https://comparepv.com/compare/ht-saae-ht54-18x-nd-f-435w/ht-saae-ht54-18x-nd-f-440w) - 4 differences, the largest is module efficiency - [HT-SAAE HT54-18X(ND)-F 435W vs HT-SAAE HT54-18X(ND)-F 430W](https://comparepv.com/compare/ht-saae-ht54-18x-nd-f-435w/ht-saae-ht54-18x-nd-f-430w) - One difference: module efficiency - [HT-SAAE HT54-18X(ND)-F 435W vs HT-SAAE HT54-18X(ND)-F 425W](https://comparepv.com/compare/ht-saae-ht54-18x-nd-f-435w/ht-saae-ht54-18x-nd-f-425w) - 3 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/ht-saae-ht54-18x-nd-f-435w/ht-saae-ht54-18x-nd-f-445w 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.