--- title: "Solaria PowerXT 420R-PL vs Solaria PowerXT 430R-PL - Solar Panel Comparison | ComparePV" description: "Compare Solaria PowerXT 420R-PL vs Solaria PowerXT 430R-PL 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-420r-pl/solaria-powerxt-430r-pl" updated: 2026-09-11 --- # Solaria PowerXT 420R-PL vs Solaria PowerXT 430R-PL 430R-PL leads on the differences that matter The largest is module efficiency: 0.50 pp more efficient. 14 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 420R-PL](https://comparepv.com/panel/solaria-powerxt-420r-pl) | [Solaria PowerXT 430R-PL](https://comparepv.com/panel/solaria-powerxt-430r-pl) | | Manufacturer | Solaria | Solaria | | Power | 420 Wp | 430 Wp | | Efficiency | 19.90 % | 20.40 % | | Technology | | | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 420R-PL | 430R-PL | Difference | | --- | --- | --- | --- | | Module efficiency | 19.90 % | 20.40 % | +0.50 pp for 430R-PL | | Power density | 198.9 Wp/m² | 203.6 Wp/m² | +4.7 Wp/m² for 430R-PL | | Rated power | 420 Wp | 430 Wp | +10 W for 430R-PL | ## Every compared parameter | Parameter | 420R-PL | 430R-PL | | --- | --- | --- | | Rated power | 420 Wp | 430 Wp | | Module efficiency | 19.90 % | 20.40 % | | Power density | 198.9 Wp/m² | 203.6 Wp/m² | | Open-circuit voltage | 45.70 V | 45.70 V | | Voltage at max power | 37.90 V | 37.90 V | | Short-circuit current | 11.60 A | 11.87 A | | Current at max power | 11.09 A | 11.35 A | | Temperature coefficient | -0.390 %/°C | -0.390 %/°C | | Dimensions | 1957x1079x35 mm | 1957x1079x35 mm | | Module area | 2.112 m² | 2.112 m² | | Weight | 21.7 kg | 21.7 kg | | Weight per kWp | 51.7 kg/kWp | 50.5 kg/kWp | | Product warranty | 30 yrs | 30 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.48 %/yr | 0.48 %/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 Same temp coeff. for both panels (-0.390 %/°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, 420R-PL:** 13,765 kWh - **Cumulative output, 430R-PL:** 14,093 kWh - **Gap:** 328 kWh ## Output when hot | Condition | Cell temperature | 420R-PL | 430R-PL | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 420 W | 430 W | 100.0% of rated power | | Cool, bright day | 40 °C | 395 W | 405 W | 94.2% of rated power | | Typical summer roof | 55 °C | 371 W | 380 W | 88.3% of rated power | | Hot roof | 70 °C | 346 W | 355 W | 82.5% of rated power | ## Against the whole database | Measure | 420R-PL | 430R-PL | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #12,331 | #11,598 | 14,005 | 430R-PL leads by 733 places | | Power density | #12,344 | #11,673 | 14,005 | 430R-PL leads by 671 places | | Heat behaviour | #13,579 | #13,579 | 14,005 | Tied - the same position in the database | | Weight | #5,023 | #3,841 | 14,005 | 430R-PL leads by 1,182 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #9,324 | #8,404 | 14,005 | 430R-PL leads by 920 places | ## Questions ### Which panel is better: Solaria PowerXT 420R-PL or Solaria PowerXT 430R-PL? According to our database: **Solaria PowerXT 430R-PL** has higher module efficiency (**20.40%** vs **19.90%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Solaria PowerXT 420R-PL and Solaria PowerXT 430R-PL? **Solaria PowerXT 420R-PL** has a module efficiency of **19.90%**, while **Solaria PowerXT 430R-PL** is **20.40%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Solaria PowerXT 420R-PL use vs Solaria PowerXT 430R-PL? **Solaria PowerXT 420R-PL** uses Monocrystalline cells; **Solaria PowerXT 430R-PL** 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 420R-PL and Solaria PowerXT 430R-PL? **Solaria PowerXT 420R-PL** has a **30 years** power warranty; **Solaria PowerXT 430R-PL** 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. ## Related comparisons - [Solaria PowerXT 420R-PL vs Solaria Solaria PowerXT-430C-PD](https://comparepv.com/compare/solaria-powerxt-420r-pl/solaria-solaria-powerxt-430c-pd) - 9 differences, the largest is performance warranty - [Solaria PowerXT 420R-PL vs Solaria Solaria PowerXT-420C-BD](https://comparepv.com/compare/solaria-powerxt-420r-pl/solaria-solaria-powerxt-420c-bd) - 10 differences, the largest is performance warranty - [Solaria PowerXT 420R-PL vs Solaria Solaria PowerXT-420C-PD](https://comparepv.com/compare/solaria-powerxt-420r-pl/solaria-solaria-powerxt-420c-pd) - 9 differences, the largest is performance warranty - [Solaria PowerXT 420R-PL vs Solaria Solaria PowerXT-410C-BD](https://comparepv.com/compare/solaria-powerxt-420r-pl/solaria-solaria-powerxt-410c-bd) - 10 differences, the largest is module efficiency - [Solaria PowerXT 420R-PL vs Solaria Solaria PowerX-400R](https://comparepv.com/compare/solaria-powerxt-420r-pl/solaria-solaria-powerx-400r) - 13 differences, the largest is performance warranty - [Solaria PowerXT 420R-PL vs Solaria Solaria PowerXT-400R-PM](https://comparepv.com/compare/solaria-powerxt-420r-pl/solaria-solaria-powerxt-400r-pm) - 9 differences, the largest is rated power --- Source: https://comparepv.com/compare/solaria-powerxt-420r-pl/solaria-powerxt-430r-pl 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.