--- title: "Philadelphia Solar PS-MNB144(HCBF)-595W vs Philadelphia Solar PS-MNB156(HCBF)-650W - Solar Panel Comparison | ComparePV" description: "Compare Philadelphia Solar PS-MNB144(HCBF)-595W vs Philadelphia Solar PS-MNB156(HCBF)-650W side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/philadelphia-solar-ps-mnb144-hcbf-595w/philadelphia-solar-ps-mnb156-hcbf-650w" image: "https://comparepv.com/og/compare/panels/philadelphia-solar-ps-mnb144-hcbf-595w/philadelphia-solar-ps-mnb156-hcbf-650w.png" updated: 2026-09-12 --- # Philadelphia Solar PS-MNB144(HCBF)-595W vs Philadelphia Solar PS-MNB156(HCBF)-650W 9 differences, and they point both ways The largest is rated power: 55 W more power. 10 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Philadelphia Solar PS-MNB144(HCBF)-595W](https://comparepv.com/panel/philadelphia-solar-ps-mnb144-hcbf-595w) | [Philadelphia Solar PS-MNB156(HCBF)-650W](https://comparepv.com/panel/philadelphia-solar-ps-mnb156-hcbf-650w) | | Manufacturer | Philadelphia Solar | Philadelphia Solar | | Power | 595 Wp | 650 Wp | | Efficiency | 23.03 % | 23.26 % | | Technology | N-type | N-type | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | MNB144(HCBF)-595W | MNB156(HCBF)-650W | Difference | | --- | --- | --- | --- | | Rated power | 595 Wp | 650 Wp | +55 W for MNB156(HCBF)-650W | | Weight | 27.0 kg | 32.5 kg | -5.5 kg for MNB144(HCBF)-595W | | Open-circuit voltage | 52.07 V | 56.55 V | 4.48 V apart | | Module area | 2.583 m² | 2.794 m² | 0.211 m² apart | | Weight per kWp | 45.4 kg/kWp | 50.0 kg/kWp | -4.6 kg/kWp for MNB144(HCBF)-595W | | Module efficiency | 23.03 % | 23.26 % | +0.23 pp for MNB156(HCBF)-650W | | Cell count | 144 | 156 | 12 cells apart | | Voltage at max power | 44.34 V | 48.22 V | 3.88 V apart | | Dimensions | 2278x1134x30 mm | 2464x1134x35 mm | 2278x1134x30 mm vs 2464x1134x35 mm | ## Every compared parameter | Parameter | MNB144(HCBF)-595W | MNB156(HCBF)-650W | | --- | --- | --- | | Rated power | 595 Wp | 650 Wp | | Module efficiency | 23.03 % | 23.26 % | | Power density | 230.3 Wp/m² | 232.6 Wp/m² | | Open-circuit voltage | 52.07 V | 56.55 V | | Voltage at max power | 44.34 V | 48.22 V | | Short-circuit current | 14.22 A | 14.26 A | | Current at max power | 13.44 A | 13.48 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 2278x1134x30 mm | 2464x1134x35 mm | | Module area | 2.583 m² | 2.794 m² | | Weight | 27.0 kg | 32.5 kg | | Weight per kWp | 45.4 kg/kWp | 50.0 kg/kWp | | Product warranty | 12 yrs | 12 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.40 %/yr | 0.40 %/yr | | Cell technology | N-type | N-type | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 144 | 156 | | 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 (-0.290 %/°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, MNB144(HCBF)-595W:** 19,963 kWh - **Cumulative output, MNB156(HCBF)-650W:** 21,809 kWh - **Gap:** 1,846 kWh ## Output when hot | Condition | Cell temperature | MNB144(HCBF)-595W | MNB156(HCBF)-650W | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 595 W | 650 W | 100.0% of rated power | | Cool, bright day | 40 °C | 569 W | 622 W | 95.7% of rated power | | Typical summer roof | 55 °C | 543 W | 593 W | 91.3% of rated power | | Hot roof | 70 °C | 517 W | 565 W | 87.0% of rated power | ## Against the whole database | Measure | MNB144(HCBF)-595W | MNB156(HCBF)-650W | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #1,744 | #1,237 | 14,005 | MNB156(HCBF)-650W leads by 507 places | | Power density | #1,758 | #1,218 | 14,005 | MNB156(HCBF)-650W leads by 540 places | | Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database | | Weight | #708 | #3,317 | 14,005 | MNB144(HCBF)-595W leads by 2,609 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #3,213 | #1,621 | 14,005 | MNB156(HCBF)-650W leads by 1,592 places | ## Questions ### Which panel is better: Philadelphia Solar PS-MNB144(HCBF)-595W or Philadelphia Solar PS-MNB156(HCBF)-650W? According to our database: **Philadelphia Solar PS-MNB156(HCBF)-**650 W**** has higher module efficiency (**23.26%** vs **23.03%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Philadelphia Solar PS-MNB144(HCBF)-595W and Philadelphia Solar PS-MNB156(HCBF)-650W? **Philadelphia Solar PS-MNB144(HCBF)-**595 W**** has a module efficiency of **23.03%**, while **Philadelphia Solar PS-MNB156(HCBF)-**650 W**** is **23.26%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Philadelphia Solar PS-MNB144(HCBF)-595W use vs Philadelphia Solar PS-MNB156(HCBF)-650W? **Philadelphia Solar PS-MNB144(HCBF)-**595 W**** uses **N-type** cells; **Philadelphia Solar PS-MNB156(HCBF)-**650 W**** uses **N-type**. 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 Philadelphia Solar PS-MNB144(HCBF)-595W and Philadelphia Solar PS-MNB156(HCBF)-650W? **Philadelphia Solar PS-MNB144(HCBF)-**595 W**** has a **30 years** power warranty; **Philadelphia Solar PS-MNB156(HCBF)-**650 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 Philadelphia Solar PS-MNB144(HCBF)-595W and Philadelphia Solar PS-MNB156(HCBF)-650W bifacial panels? Both **Philadelphia Solar PS-MNB144(HCBF)-**595 W**** and **Philadelphia Solar PS-MNB156(HCBF)-**650 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 - [Philadelphia Solar PS-MNB144(HCBF)-595W vs Philadelphia Solar PS-MNB156(HCBF)-645W](https://comparepv.com/compare/philadelphia-solar-ps-mnb144-hcbf-595w/philadelphia-solar-ps-mnb156-hcbf-645w) - 8 differences, the largest is rated power - [Philadelphia Solar PS-MNB144(HCBF)-595W vs Philadelphia Solar PS-MNB156(HCBF)-640W](https://comparepv.com/compare/philadelphia-solar-ps-mnb144-hcbf-595w/philadelphia-solar-ps-mnb156-hcbf-640w) - 8 differences, the largest is rated power - [Philadelphia Solar PS-MNB144(HCBF)-595W vs Philadelphia Solar PS-MNB156(HCBF)-635W](https://comparepv.com/compare/philadelphia-solar-ps-mnb144-hcbf-595w/philadelphia-solar-ps-mnb156-hcbf-635w) - 10 differences, the largest is rated power - [Philadelphia Solar PS-MNB144(HCBF)-595W vs Philadelphia Solar PS-MNB156(HCBF)-630W](https://comparepv.com/compare/philadelphia-solar-ps-mnb144-hcbf-595w/philadelphia-solar-ps-mnb156-hcbf-630w) - 10 differences, the largest is rated power - [Philadelphia Solar PS-MNB144(HCBF)-595W vs Philadelphia Solar PS-MNB144(HCBF)-600W](https://comparepv.com/compare/philadelphia-solar-ps-mnb144-hcbf-595w/philadelphia-solar-ps-mnb144-hcbf-600w) - One difference: module efficiency - [Philadelphia Solar PS-MNB144(HCBF)-595W vs Philadelphia Solar PS-MNG144(HCBF)-600W](https://comparepv.com/compare/philadelphia-solar-ps-mnb144-hcbf-595w/philadelphia-solar-ps-mng144-hcbf-600w) - 3 differences, the largest is weight --- Source: https://comparepv.com/compare/philadelphia-solar-ps-mnb144-hcbf-595w/philadelphia-solar-ps-mnb156-hcbf-650w 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.