--- title: "MY Solar MS725N-HJTGB vs MY Solar MS730N-HJTGB - Solar Panel Comparison | ComparePV" description: "Compare MY Solar MS725N-HJTGB vs MY Solar MS730N-HJTGB side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/my-solar-ms725n-hjtgb/my-solar-ms730n-hjtgb" updated: 2026-09-11 --- # MY Solar MS725N-HJTGB vs MY Solar MS730N-HJTGB Identical on every published parameter All 18 comparable parameters agree, with 1 more left out because at least one datasheet does not publish it. 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 | [MY Solar MS725N-HJTGB](https://comparepv.com/panel/my-solar-ms725n-hjtgb) | [MY Solar MS730N-HJTGB](https://comparepv.com/panel/my-solar-ms730n-hjtgb) | | Manufacturer | MY Solar | MY Solar | | Power | 725 Wp | 730 Wp | | Efficiency | 23.34 % | 23.50 % | | Technology | HJT | HJT | ## Every compared parameter | Parameter | MS725N-HJTGB | MS730N-HJTGB | | --- | --- | --- | | Rated power | 725 Wp | 730 Wp | | Module efficiency | 23.34 % | 23.50 % | | Power density | 233.4 Wp/m² | 235.0 Wp/m² | | Open-circuit voltage | 50.90 V | 51.05 V | | Voltage at max power | 42.85 V | 42.97 V | | Short-circuit current | 17.74 A | 17.81 A | | Current at max power | 16.93 A | 16.99 A | | Temperature coefficient | -0.240 %/°C | -0.240 %/°C | | Dimensions | 2384x1303x35 mm | 2384x1303x35 mm | | Module area | 3.106 m² | 3.106 m² | | Weight | 38.3 kg | 38.3 kg | | Weight per kWp | 52.8 kg/kWp | 52.5 kg/kWp | | Product warranty | 30 yrs | 30 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | - | - | | Cell technology | HJT | HJT | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 132 | 132 | | Bifacial | Yes | Yes | ## Thirty-year yield A 1.0% first-year loss then 0.40% a year, assumed for both panels, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.240 %/°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, MS725N-HJTGB:** 24,325 kWh - **Cumulative output, MS730N-HJTGB:** 24,493 kWh - **Gap:** 168 kWh ## Output when hot | Condition | Cell temperature | MS725N-HJTGB | MS730N-HJTGB | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 725 W | 730 W | 100.0% of rated power | | Cool, bright day | 40 °C | 699 W | 704 W | 96.4% of rated power | | Typical summer roof | 55 °C | 673 W | 677 W | 92.8% of rated power | | Hot roof | 70 °C | 647 W | 651 W | 89.2% of rated power | ## Against the whole database | Measure | MS725N-HJTGB | MS730N-HJTGB | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #943 | #716 | 14,005 | MS730N-HJTGB leads by 227 places | | Power density | #936 | #800 | 14,005 | MS730N-HJTGB leads by 136 places | | Heat behaviour | #13 | #13 | 14,005 | Tied - the same position in the database | | Weight | #6,514 | #5,993 | 14,005 | MS730N-HJTGB leads by 521 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #13 | #8 | 14,005 | MS730N-HJTGB leads by 5 places | ## Questions ### Which panel is better: MY Solar MS725N-HJTGB or MY Solar MS730N-HJTGB? According to our database: **MY Solar MS730N-HJTGB** has higher module efficiency (**23.50%** vs **23.34%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of MY Solar MS725N-HJTGB and MY Solar MS730N-HJTGB? **MY Solar MS725N-HJTGB** has a module efficiency of **23.34%**, while **MY Solar MS730N-HJTGB** is **23.50%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does MY Solar MS725N-HJTGB use vs MY Solar MS730N-HJTGB? **MY Solar MS725N-HJTGB** uses **HJT** cells; **MY Solar MS730N-HJTGB** uses **HJT**. 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 MY Solar MS725N-HJTGB and MY Solar MS730N-HJTGB? **MY Solar MS725N-HJTGB** has a **30 years** power warranty; **MY Solar MS730N-HJTGB** 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 MY Solar MS725N-HJTGB and MY Solar MS730N-HJTGB bifacial panels? Both **MY Solar MS725N-HJTGB** and **MY Solar MS730N-HJTGB** 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 - [MY Solar MS725N-HJTGB vs MY Solar MS740N-HJTGB](https://comparepv.com/compare/my-solar-ms725n-hjtgb/my-solar-ms740n-hjtgb) - 3 differences, the largest is module efficiency - [MY Solar MS725N-HJTGB vs MY Solar MS735N-HJTGB](https://comparepv.com/compare/my-solar-ms725n-hjtgb/my-solar-ms735n-hjtgb) - 3 differences, the largest is module efficiency - [MY Solar MS725N-HJTGB vs MY Solar MS720N-HJTGB](https://comparepv.com/compare/my-solar-ms725n-hjtgb/my-solar-ms720n-hjtgb) - One difference: temperature coefficient - [MY Solar MS725N-HJTGB vs MY Solar MS715N-HJTGB](https://comparepv.com/compare/my-solar-ms725n-hjtgb/my-solar-ms715n-hjtgb) - 4 differences, the largest is temperature coefficient - [MY Solar MS725N-HJTGB vs MY Solar MS710N-HJTGB](https://comparepv.com/compare/my-solar-ms725n-hjtgb/my-solar-ms710n-hjtgb) - 4 differences, the largest is module efficiency - [MY Solar MS725N-HJTGB vs MY Solar MS705N-HJTGB](https://comparepv.com/compare/my-solar-ms725n-hjtgb/my-solar-ms705n-hjtgb) - 5 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/my-solar-ms725n-hjtgb/my-solar-ms730n-hjtgb 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.