--- title: "Solaria PowerXT 430R-PL vs Solaria Solaria PowerX-400R - Solar Panel Comparison | ComparePV" description: "Compare Solaria PowerXT 430R-PL vs Solaria Solaria PowerX-400R side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/solaria-powerxt-430r-pl/solaria-solaria-powerx-400r" updated: 2026-09-11 --- # Solaria PowerXT 430R-PL vs Solaria Solaria PowerX-400R PowerXT 430R-PL leads on the differences that matter The largest is performance warranty: 5 yrs longer. 6 of 17 comparable parameters are identical, with 2 more left out because at least one datasheet does not publish them. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Solaria PowerXT 430R-PL](https://comparepv.com/panel/solaria-powerxt-430r-pl) | [Solaria Solaria PowerX-400R](https://comparepv.com/panel/solaria-solaria-powerx-400r) | | Manufacturer | Solaria | Solaria | | Power | 430 Wp | 400 Wp | | Efficiency | 20.40 % | 20.50 % | | Technology | | | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | PowerXT 430R-PL | Solaria PowerX-400R | Difference | | --- | --- | --- | --- | | Performance warranty | 30 yrs | 25 yrs | +5 yrs for PowerXT 430R-PL | | Temperature coefficient | -0.390 %/°C | -0.360 %/°C | +0.030 %/°C for Solaria PowerX-400R | | Rated power | 430 Wp | 400 Wp | +30 W for PowerXT 430R-PL | | Product warranty | 30 yrs | 25 yrs | +5 yrs for PowerXT 430R-PL | | Open-circuit voltage | 45.70 V | 37.30 V | 8.40 V apart | | Module area | 2.112 m² | 1.954 m² | 0.158 m² apart | | Short-circuit current | 11.87 A | 13.68 A | 1.81 A apart | | Weight per kWp | 50.5 kg/kWp | 55.2 kg/kWp | -4.8 kg/kWp for PowerXT 430R-PL | | Voltage at max power | 37.90 V | 31.00 V | 6.90 V apart | | Current at max power | 11.35 A | 12.90 A | 1.55 A apart | | Dimensions | 1957x1079x35 mm | 1723x1134x35 mm | 1957x1079x35 mm vs 1723x1134x35 mm | ## Every compared parameter | Parameter | PowerXT 430R-PL | Solaria PowerX-400R | | --- | --- | --- | | Rated power | 430 Wp | 400 Wp | | Module efficiency | 20.40 % | 20.50 % | | Power density | 203.6 Wp/m² | 204.7 Wp/m² | | Open-circuit voltage | 45.70 V | 37.30 V | | Voltage at max power | 37.90 V | 31.00 V | | Short-circuit current | 11.87 A | 13.68 A | | Current at max power | 11.35 A | 12.90 A | | Temperature coefficient | -0.390 %/°C | -0.360 %/°C | | Dimensions | 1957x1079x35 mm | 1723x1134x35 mm | | Module area | 2.112 m² | 1.954 m² | | Weight | 21.7 kg | 22.1 kg | | Weight per kWp | 50.5 kg/kWp | 55.2 kg/kWp | | Product warranty | 30 yrs | 25 yrs | | Performance warranty | 30 yrs | 25 yrs | | Annual degradation | 0.48 %/yr | 0.50 %/yr | | Cell technology | - | - | | Cell type | Monocrystalline | Monocrystalline | | Cell count | - | - | | Bifacial | No | No | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year - **Cumulative output, PowerXT 430R-PL:** 14,093 kWh - **Cumulative output, Solaria PowerX-400R:** 13,068 kWh - **Gap:** 1,025 kWh ## Output when hot | Condition | Cell temperature | PowerXT 430R-PL | Solaria PowerX-400R | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 430 W | 400 W | 100.0% of rated power | | Cool, bright day | 40 °C | 405 W | 378 W | 94.2% of rated power | | Typical summer roof | 55 °C | 380 W | 357 W | 88.3% of rated power | | Hot roof | 70 °C | 355 W | 335 W | 82.5% of rated power | ## Against the whole database | Measure | PowerXT 430R-PL | Solaria PowerX-400R | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #11,598 | #11,308 | 14,005 | Solaria PowerX-400R leads by 290 places | | Power density | #11,673 | #11,499 | 14,005 | Solaria PowerX-400R leads by 174 places | | Heat behaviour | #13,579 | #12,345 | 14,005 | Solaria PowerX-400R leads by 1,234 places | | Weight | #3,841 | #9,691 | 14,005 | PowerXT 430R-PL leads by 5,850 places | | Warranty | #21 | #9,798 | 14,005 | PowerXT 430R-PL leads by 9,777 places | | Overall | #8,404 | #10,732 | 14,005 | PowerXT 430R-PL leads by 2,328 places | ## Questions ### Which panel is better: Solaria PowerXT 430R-PL or Solaria Solaria PowerX-400R? According to our database: **Solaria **Solaria** PowerX-400R** has higher module efficiency (**20.50%** vs **20.40%**); **Solaria **Solaria** PowerX-400R** tolerates heat better (temp coeff **-0.360%/°C** vs **-0.390%/°C**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Solaria PowerXT 430R-PL and Solaria Solaria PowerX-400R? **Solaria PowerXT 430R-PL** has a module efficiency of **20.40%**, while **Solaria **Solaria** PowerX-400R** is **20.50%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Solaria PowerXT 430R-PL use vs Solaria Solaria PowerX-400R? **Solaria PowerXT 430R-PL** uses Monocrystalline cells; **Solaria **Solaria** PowerX-400R** uses Monocrystalline. 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 Solaria PowerXT 430R-PL and Solaria Solaria PowerX-400R? **Solaria PowerXT 430R-PL** has a **30 years** power warranty; **Solaria **Solaria** PowerX-400R** 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. ## Related comparisons - [Solaria PowerXT 430R-PL vs Solaria Solaria PowerXT-430C-PD](https://comparepv.com/compare/solaria-powerxt-430r-pl/solaria-solaria-powerxt-430c-pd) - 10 differences, the largest is performance warranty - [Solaria PowerXT 430R-PL vs Solaria PowerXT 420R-PL](https://comparepv.com/compare/solaria-powerxt-430r-pl/solaria-powerxt-420r-pl) - 3 differences, the largest is module efficiency - [Solaria PowerXT 430R-PL vs Solaria Solaria PowerXT-420C-BD](https://comparepv.com/compare/solaria-powerxt-430r-pl/solaria-solaria-powerxt-420c-bd) - 13 differences, the largest is module efficiency - [Solaria PowerXT 430R-PL vs Solaria Solaria PowerXT-420C-PD](https://comparepv.com/compare/solaria-powerxt-430r-pl/solaria-solaria-powerxt-420c-pd) - 11 differences, the largest is module efficiency - [Solaria PowerXT 430R-PL vs Solaria Solaria PowerXT-410C-BD](https://comparepv.com/compare/solaria-powerxt-430r-pl/solaria-solaria-powerxt-410c-bd) - 12 differences, the largest is module efficiency - [Solaria PowerXT 430R-PL vs Solaria Solaria PowerXT-400R-PM](https://comparepv.com/compare/solaria-powerxt-430r-pl/solaria-solaria-powerxt-400r-pm) - 9 differences, the largest is rated power --- Source: https://comparepv.com/compare/solaria-powerxt-430r-pl/solaria-solaria-powerx-400r 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.