--- title: "MY Solar MS705N-HJTGB vs MY Solar MS715N-HJTGB - Solar Panel Comparison | ComparePV" description: "Compare MY Solar MS705N-HJTGB vs MY Solar MS715N-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-ms705n-hjtgb/my-solar-ms715n-hjtgb" updated: 2026-09-11 --- # MY Solar MS705N-HJTGB vs MY Solar MS715N-HJTGB MS715N-HJTGB leads on the differences that matter The largest is module efficiency: 0.32 pp more efficient. 16 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [MY Solar MS705N-HJTGB](https://comparepv.com/panel/my-solar-ms705n-hjtgb) | [MY Solar MS715N-HJTGB](https://comparepv.com/panel/my-solar-ms715n-hjtgb) | | Manufacturer | MY Solar | MY Solar | | Power | 705 Wp | 715 Wp | | Efficiency | 22.69 % | 23.01 % | | Technology | HJT | HJT | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | MS705N-HJTGB | MS715N-HJTGB | Difference | | --- | --- | --- | --- | | Module efficiency | 22.69 % | 23.01 % | +0.32 pp for MS715N-HJTGB | | Power density | 227.0 Wp/m² | 230.2 Wp/m² | +3.2 Wp/m² for MS715N-HJTGB | | Rated power | 705 Wp | 715 Wp | +10 W for MS715N-HJTGB | ## Every compared parameter | Parameter | MS705N-HJTGB | MS715N-HJTGB | | --- | --- | --- | | Rated power | 705 Wp | 715 Wp | | Module efficiency | 22.69 % | 23.01 % | | Power density | 227.0 Wp/m² | 230.2 Wp/m² | | Open-circuit voltage | 50.29 V | 50.60 V | | Voltage at max power | 42.25 V | 42.55 V | | Short-circuit current | 17.49 A | 17.61 A | | Current at max power | 16.69 A | 16.81 A | | Temperature coefficient | -0.260 %/°C | -0.260 %/°C | | Dimensions | 2384x1303x35 mm | 2384x1303x35 mm | | Module area | 3.106 m² | 3.106 m² | | Weight | 38.8 kg | 38.8 kg | | Weight per kWp | 55.0 kg/kWp | 54.3 kg/kWp | | Product warranty | 30 yrs | 30 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.25 %/yr | 0.25 %/yr | | Cell technology | HJT | HJT | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 132 | 132 | | 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 (-0.260 %/°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, MS705N-HJTGB:** 24,206 kWh - **Cumulative output, MS715N-HJTGB:** 24,550 kWh - **Gap:** 344 kWh ## Output when hot | Condition | Cell temperature | MS705N-HJTGB | MS715N-HJTGB | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 705 W | 715 W | 100.0% of rated power | | Cool, bright day | 40 °C | 678 W | 687 W | 96.1% of rated power | | Typical summer roof | 55 °C | 650 W | 659 W | 92.2% of rated power | | Hot roof | 70 °C | 623 W | 631 W | 88.3% of rated power | ## Against the whole database | Measure | MS705N-HJTGB | MS715N-HJTGB | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #3,496 | #1,911 | 14,005 | MS715N-HJTGB leads by 1,585 places | | Power density | #3,361 | #2,018 | 14,005 | MS715N-HJTGB leads by 1,343 places | | Heat behaviour | #511 | #511 | 14,005 | Tied - the same position in the database | | Weight | #9,420 | #8,518 | 14,005 | MS715N-HJTGB leads by 902 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #89 | #43 | 14,005 | MS715N-HJTGB leads by 46 places | ## Questions ### Which panel is better: MY Solar MS705N-HJTGB or MY Solar MS715N-HJTGB? According to our database: **MY Solar MS715N-HJTGB** has higher module efficiency (**23.01%** vs **22.69%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of MY Solar MS705N-HJTGB and MY Solar MS715N-HJTGB? **MY Solar MS705N-HJTGB** has a module efficiency of **22.69%**, while **MY Solar MS715N-HJTGB** is **23.01%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does MY Solar MS705N-HJTGB use vs MY Solar MS715N-HJTGB? **MY Solar MS705N-HJTGB** uses **HJT** cells; **MY Solar MS715N-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 MS705N-HJTGB and MY Solar MS715N-HJTGB? **MY Solar MS705N-HJTGB** has a **30 years** power warranty; **MY Solar MS715N-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 MS705N-HJTGB and MY Solar MS715N-HJTGB bifacial panels? Both **MY Solar MS705N-HJTGB** and **MY Solar MS715N-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 MS705N-HJTGB vs MY Solar MS740N-HJTGB](https://comparepv.com/compare/my-solar-ms705n-hjtgb/my-solar-ms740n-hjtgb) - 7 differences, the largest is module efficiency - [MY Solar MS705N-HJTGB vs MY Solar MS735N-HJTGB](https://comparepv.com/compare/my-solar-ms705n-hjtgb/my-solar-ms735n-hjtgb) - 5 differences, the largest is module efficiency - [MY Solar MS705N-HJTGB vs MY Solar MS730N-HJTGB](https://comparepv.com/compare/my-solar-ms705n-hjtgb/my-solar-ms730n-hjtgb) - 5 differences, the largest is module efficiency - [MY Solar MS705N-HJTGB vs MY Solar MS725N-HJTGB](https://comparepv.com/compare/my-solar-ms705n-hjtgb/my-solar-ms725n-hjtgb) - 5 differences, the largest is module efficiency - [MY Solar MS705N-HJTGB vs MY Solar MS720N-HJTGB](https://comparepv.com/compare/my-solar-ms705n-hjtgb/my-solar-ms720n-hjtgb) - 3 differences, the largest is module efficiency - [MY Solar MS705N-HJTGB vs MY Solar MS710N-HJTGB](https://comparepv.com/compare/my-solar-ms705n-hjtgb/my-solar-ms710n-hjtgb) - The same specification on paper --- Source: https://comparepv.com/compare/my-solar-ms705n-hjtgb/my-solar-ms715n-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.