--- title: "Premier Energies PEI-144-580-THGB-M10 vs Premier Energies PEI-144-585-THGB-M10 - Solar Panel Comparison | ComparePV" description: "Compare Premier Energies PEI-144-580-THGB-M10 vs Premier Energies PEI-144-585-THGB-M10 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/premier-energies-pei-144-580-thgb-m10/premier-energies-pei-144-585-thgb-m10" updated: 2026-09-11 --- # Premier Energies PEI-144-580-THGB-M10 vs Premier Energies PEI-144-585-THGB-M10 Identical on every published parameter All 19 comparable parameters agree. Two records this alike are usually one panel sold under two names, or two bins of the same production line - decide on price and on who you would rather buy from. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Premier Energies PEI-144-580-THGB-M10](https://comparepv.com/panel/premier-energies-pei-144-580-thgb-m10) | [Premier Energies PEI-144-585-THGB-M10](https://comparepv.com/panel/premier-energies-pei-144-585-thgb-m10) | | Manufacturer | Premier Energies | Premier Energies | | Power | 580 Wp | 585 Wp | | Efficiency | 22.44 % | 22.63 % | | Technology | TOPCon | TOPCon | ## Every compared parameter | Parameter | 580-THGB-M10 | 585-THGB-M10 | | --- | --- | --- | | Rated power | 580 Wp | 585 Wp | | Module efficiency | 22.44 % | 22.63 % | | Power density | 224.5 Wp/m² | 226.5 Wp/m² | | Open-circuit voltage | 51.34 V | 51.38 V | | Voltage at max power | 44.07 V | 44.11 V | | Short-circuit current | 13.83 A | 13.93 A | | Current at max power | 13.17 A | 13.27 A | | Temperature coefficient | -0.300 %/°C | -0.300 %/°C | | Dimensions | 2278x1134x35 mm | 2278x1134x35 mm | | Module area | 2.583 m² | 2.583 m² | | Weight | 34.0 kg | 34.0 kg | | Weight per kWp | 58.6 kg/kWp | 58.1 kg/kWp | | Product warranty | 12 yrs | 12 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 | 144 | 144 | | 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 (-0.300 %/°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, 580-THGB-M10:** 19,460 kWh - **Cumulative output, 585-THGB-M10:** 19,628 kWh - **Gap:** 168 kWh ## Output when hot | Condition | Cell temperature | 580-THGB-M10 | 585-THGB-M10 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 580 W | 585 W | 100.0% of rated power | | Cool, bright day | 40 °C | 554 W | 559 W | 95.5% of rated power | | Typical summer roof | 55 °C | 528 W | 532 W | 91.0% of rated power | | Hot roof | 70 °C | 502 W | 506 W | 86.5% of rated power | ## Against the whole database | Measure | 580-THGB-M10 | 585-THGB-M10 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #4,716 | #3,622 | 14,005 | 585-THGB-M10 leads by 1,094 places | | Power density | #4,547 | #3,500 | 14,005 | 585-THGB-M10 leads by 1,047 places | | Heat behaviour | #6,093 | #6,093 | 14,005 | Tied - the same position in the database | | Weight | #11,813 | #11,570 | 14,005 | 585-THGB-M10 leads by 243 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #4,636 | #4,210 | 14,005 | 585-THGB-M10 leads by 426 places | ## Questions ### Which panel is better: Premier Energies PEI-144-580-THGB-M10 or Premier Energies PEI-144-585-THGB-M10? According to our database: **Premier Energies PEI-144-585-THGB-M10** has higher module efficiency (**22.63%** vs **22.44%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Premier Energies PEI-144-580-THGB-M10 and Premier Energies PEI-144-585-THGB-M10? **Premier Energies PEI-144-580-THGB-M10** has a module efficiency of **22.44%**, while **Premier Energies PEI-144-585-THGB-M10** is **22.63%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Premier Energies PEI-144-580-THGB-M10 use vs Premier Energies PEI-144-585-THGB-M10? **Premier Energies PEI-144-580-THGB-M10** uses **TOPCon** cells; **Premier Energies PEI-144-585-THGB-M10** 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 Premier Energies PEI-144-580-THGB-M10 and Premier Energies PEI-144-585-THGB-M10? **Premier Energies PEI-144-580-THGB-M10** has a **30 years** power warranty; **Premier Energies PEI-144-585-THGB-M10** 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 Premier Energies PEI-144-580-THGB-M10 and Premier Energies PEI-144-585-THGB-M10 bifacial panels? Both **Premier Energies PEI-144-580-THGB-M10** and **Premier Energies PEI-144-585-THGB-M10** 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 - [Premier Energies PEI-144-580-THGB-M10 vs Premier Energies PE-590TBBG-144](https://comparepv.com/compare/premier-energies-pei-144-580-thgb-m10/premier-energies-pe-590tbbg-144) - 3 differences, the largest is module efficiency - [Premier Energies PEI-144-580-THGB-M10 vs Premier Energies PEI-144-590-THGB-M10](https://comparepv.com/compare/premier-energies-pei-144-580-thgb-m10/premier-energies-pei-144-590-thgb-m10) - 3 differences, the largest is module efficiency - [Premier Energies PEI-144-580-THGB-M10 vs Premier Energies PE-585TBBG-144](https://comparepv.com/compare/premier-energies-pei-144-580-thgb-m10/premier-energies-pe-585tbbg-144) - The same specification on paper - [Premier Energies PEI-144-580-THGB-M10 vs Premier Energies PE-580TBBG-144](https://comparepv.com/compare/premier-energies-pei-144-580-thgb-m10/premier-energies-pe-580tbbg-144) - The same specification on paper - [Premier Energies PEI-144-580-THGB-M10 vs Premier Energies PE-575TBBG-144](https://comparepv.com/compare/premier-energies-pei-144-580-thgb-m10/premier-energies-pe-575tbbg-144) - One difference: module efficiency - [Premier Energies PEI-144-580-THGB-M10 vs Premier Energies PEI-144-575-THGB-M10](https://comparepv.com/compare/premier-energies-pei-144-580-thgb-m10/premier-energies-pei-144-575-thgb-m10) - One difference: module efficiency --- Source: https://comparepv.com/compare/premier-energies-pei-144-580-thgb-m10/premier-energies-pei-144-585-thgb-m10 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.