--- title: "Premier Energies PE-565TBBG-144 vs Premier Energies PE-585TBBG-144 - Solar Panel Comparison | ComparePV" description: "Compare Premier Energies PE-565TBBG-144 vs Premier Energies PE-585TBBG-144 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-pe-565tbbg-144/premier-energies-pe-585tbbg-144" updated: 2026-09-11 --- # Premier Energies PE-565TBBG-144 vs Premier Energies PE-585TBBG-144 585TBBG-144 leads on the differences that matter The largest is module efficiency: 0.77 pp more efficient. 15 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Premier Energies PE-565TBBG-144](https://comparepv.com/panel/premier-energies-pe-565tbbg-144) | [Premier Energies PE-585TBBG-144](https://comparepv.com/panel/premier-energies-pe-585tbbg-144) | | Manufacturer | Premier Energies | Premier Energies | | Power | 565 Wp | 585 Wp | | Efficiency | 21.86 % | 22.63 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 565TBBG-144 | 585TBBG-144 | Difference | | --- | --- | --- | --- | | Module efficiency | 21.86 % | 22.63 % | +0.77 pp for 585TBBG-144 | | Power density | 218.7 Wp/m² | 226.5 Wp/m² | +7.7 Wp/m² for 585TBBG-144 | | Rated power | 565 Wp | 585 Wp | +20 W for 585TBBG-144 | | Weight per kWp | 60.2 kg/kWp | 58.1 kg/kWp | -2.1 kg/kWp for 585TBBG-144 | ## Every compared parameter | Parameter | 565TBBG-144 | 585TBBG-144 | | --- | --- | --- | | Rated power | 565 Wp | 585 Wp | | Module efficiency | 21.86 % | 22.63 % | | Power density | 218.7 Wp/m² | 226.5 Wp/m² | | Open-circuit voltage | 51.22 V | 51.38 V | | Voltage at max power | 43.95 V | 44.11 V | | Short-circuit current | 13.50 A | 13.93 A | | Current at max power | 12.86 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 | 60.2 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, 565TBBG-144:** 18,957 kWh - **Cumulative output, 585TBBG-144:** 19,628 kWh - **Gap:** 671 kWh ## Output when hot | Condition | Cell temperature | 565TBBG-144 | 585TBBG-144 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 565 W | 585 W | 100.0% of rated power | | Cool, bright day | 40 °C | 540 W | 559 W | 95.5% of rated power | | Typical summer roof | 55 °C | 514 W | 532 W | 91.0% of rated power | | Hot roof | 70 °C | 489 W | 506 W | 86.5% of rated power | ## Against the whole database | Measure | 565TBBG-144 | 585TBBG-144 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #6,962 | #3,622 | 14,005 | 585TBBG-144 leads by 3,340 places | | Power density | #6,841 | #3,500 | 14,005 | 585TBBG-144 leads by 3,341 places | | Heat behaviour | #6,093 | #6,093 | 14,005 | Tied - the same position in the database | | Weight | #12,381 | #11,570 | 14,005 | 585TBBG-144 leads by 811 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #5,774 | #4,210 | 14,005 | 585TBBG-144 leads by 1,564 places | ## Questions ### Which panel is better: Premier Energies PE-565TBBG-144 or Premier Energies PE-585TBBG-144? According to our database: **Premier Energies PE-585TBBG-144** has higher module efficiency (**22.63%** vs **21.86%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Premier Energies PE-565TBBG-144 and Premier Energies PE-585TBBG-144? **Premier Energies PE-565TBBG-144** has a module efficiency of **21.86%**, while **Premier Energies PE-585TBBG-144** is **22.63%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Premier Energies PE-565TBBG-144 use vs Premier Energies PE-585TBBG-144? **Premier Energies PE-565TBBG-144** uses **TOPCon** cells; **Premier Energies PE-585TBBG-144** 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 PE-565TBBG-144 and Premier Energies PE-585TBBG-144? **Premier Energies PE-565TBBG-144** has a **30 years** power warranty; **Premier Energies PE-585TBBG-144** 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 PE-565TBBG-144 and Premier Energies PE-585TBBG-144 bifacial panels? Both **Premier Energies PE-565TBBG-144** and **Premier Energies PE-585TBBG-144** 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 PE-565TBBG-144 vs Premier Energies PE-590TBBG-144](https://comparepv.com/compare/premier-energies-pe-565tbbg-144/premier-energies-pe-590tbbg-144) - 6 differences, the largest is module efficiency - [Premier Energies PE-565TBBG-144 vs Premier Energies PE-580TBBG-144](https://comparepv.com/compare/premier-energies-pe-565tbbg-144/premier-energies-pe-580tbbg-144) - 3 differences, the largest is module efficiency - [Premier Energies PE-565TBBG-144 vs Premier Energies PE-575TBBG-144](https://comparepv.com/compare/premier-energies-pe-565tbbg-144/premier-energies-pe-575tbbg-144) - 3 differences, the largest is module efficiency - [Premier Energies PE-565TBBG-144 vs Premier Energies PE-570TBBG-144](https://comparepv.com/compare/premier-energies-pe-565tbbg-144/premier-energies-pe-570tbbg-144) - The same specification on paper - [Premier Energies PE-565TBBG-144 vs Premier Energies PE-560TBBG-144](https://comparepv.com/compare/premier-energies-pe-565tbbg-144/premier-energies-pe-560tbbg-144) - One difference: module efficiency - [Premier Energies PE-565TBBG-144 vs Premier Energies PE-590 TB M10\_1A](https://comparepv.com/compare/premier-energies-pe-565tbbg-144/premier-energies-pe-590-tb-m10-1a) - 7 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/premier-energies-pe-565tbbg-144/premier-energies-pe-585tbbg-144 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.