---
title: "Astronergy CHSM66N(DG)/F-BH-730 vs Astronergy CHSM54RNs(DG)(BLH)/F-BH-455W - Solar Panel Comparison | ComparePV"
description: "Compare Astronergy CHSM66N(DG)/F-BH-730 vs Astronergy CHSM54RNs(DG)(BLH)/F-BH-455W side by side: what actually differs, output when it is hot, thirty-year production, and the full specification."
source: "https://comparepv.com/compare/astronergy-chint-new-energy-technology-co-ltd-chsm66n-dg-f-bh-730/astronergy-chsm54rns-dg-blh-f-bh-455w"
updated: 2026-09-11
---

# Astronergy CHSM66N(DG)/F-BH-730 vs Astronergy CHSM54RNs(DG)(BLH)/F-BH-455W

13 differences, and they point both ways

The largest is module efficiency: 0.70 pp more efficient. 6 of 19 comparable parameters are identical.


## The two panels


| Attribute | A | B |
| --- | --- | --- |
| Panel | [Astronergy CHSM66N(DG)/F-BH-730](https://comparepv.com/panel/astronergy-chint-new-energy-technology-co-ltd-chsm66n-dg-f-bh-730) | [Astronergy CHSM54RNs(DG)(BLH)/F-BH-455W](https://comparepv.com/panel/astronergy-chsm54rns-dg-blh-f-bh-455w) |
| Manufacturer | Astronergy | Astronergy |
| Power | 730 Wp | 455 Wp |
| Efficiency | 23.50 % | 22.80 % |
| Technology | TOPCon | TOPCon |


## Where they differ

Ranked by how much the difference matters, not by datasheet order.


| Parameter | CHSM66N(DG)/F-BH-730 | CHSM54RNs(DG)(BLH)/F-BH-455W | Difference |
| --- | --- | --- | --- |
| Module efficiency | 23.50 % | 22.80 % | +0.70 pp for CHSM66N(DG)/F-BH-730 |
| Rated power | 730 Wp | 455 Wp | +275 W for CHSM66N(DG)/F-BH-730 |
| Weight | 38.0 kg | 21.5 kg | -16.5 kg for CHSM54RNs(DG)(BLH)/F-BH-455W |
| Product warranty | 15 yrs | 25 yrs | +10 yrs for CHSM54RNs(DG)(BLH)/F-BH-455W |
| Power density | 235.0 Wp/m² | 227.7 Wp/m² | +7.3 Wp/m² for CHSM66N(DG)/F-BH-730 |
| Open-circuit voltage | 49.57 V | 39.60 V | 9.97 V apart |
| Short-circuit current | 18.67 A | 14.36 A | 4.31 A apart |
| Module area | 3.106 m² | 1.998 m² | 1.108 m² apart |
| Weight per kWp | 52.1 kg/kWp | 47.3 kg/kWp | -4.8 kg/kWp for CHSM54RNs(DG)(BLH)/F-BH-455W |
| Voltage at max power | 41.24 V | 33.56 V | 7.68 V apart |
| Current at max power | 17.70 A | 13.56 A | 4.14 A apart |
| Cell count | 132 | 108 | 24 cells apart |
| Dimensions | 2384x1303x33 mm | 1762x1134x30 mm | 2384x1303x33 mm vs 1762x1134x30 mm |


## Every compared parameter


| Parameter | CHSM66N(DG)/F-BH-730 | CHSM54RNs(DG)(BLH)/F-BH-455W |
| --- | --- | --- |
| Rated power | 730 Wp | 455 Wp |
| Module efficiency | 23.50 % | 22.80 % |
| Power density | 235.0 Wp/m² | 227.7 Wp/m² |
| Open-circuit voltage | 49.57 V | 39.60 V |
| Voltage at max power | 41.24 V | 33.56 V |
| Short-circuit current | 18.67 A | 14.36 A |
| Current at max power | 17.70 A | 13.56 A |
| Temperature coefficient | -0.290 %/°C | -0.290 %/°C |
| Dimensions | 2384x1303x33 mm | 1762x1134x30 mm |
| Module area | 3.106 m² | 1.998 m² |
| Weight | 38.0 kg | 21.5 kg |
| Weight per kWp | 52.1 kg/kWp | 47.3 kg/kWp |
| Product warranty | 15 yrs | 25 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 | 132 | 108 |
| 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, CHSM66N(DG)/F-BH-730:** 24,493 kWh
- **Cumulative output, CHSM54RNs(DG)(BLH)/F-BH-455W:** 15,266 kWh
- **Gap:** 9,227 kWh


## Output when hot


| Condition | Cell temperature | CHSM66N(DG)/F-BH-730 | CHSM54RNs(DG)(BLH)/F-BH-455W | Retained |
| --- | --- | --- | --- | --- |
| Standard test conditions | 25 °C | 730 W | 455 W | 100.0% of rated power |
| Cool, bright day | 40 °C | 698 W | 435 W | 95.7% of rated power |
| Typical summer roof | 55 °C | 666 W | 415 W | 91.3% of rated power |
| Hot roof | 70 °C | 635 W | 396 W | 87.0% of rated power |


## Against the whole database


| Measure | CHSM66N(DG)/F-BH-730 | CHSM54RNs(DG)(BLH)/F-BH-455W | Out of | Note |
| --- | --- | --- | --- | --- |
| Efficiency | #716 | #2,714 | 14,005 | CHSM66N(DG)/F-BH-730 leads by 1,998 places |
| Power density | #800 | #2,888 | 14,005 | CHSM66N(DG)/F-BH-730 leads by 2,088 places |
| Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database |
| Weight | #5,495 | #1,601 | 14,005 | CHSM54RNs(DG)(BLH)/F-BH-455W leads by 3,894 places |
| Warranty | #21 | #21 | 14,005 | Tied - the same position in the database |
| Overall | #199 | #5,539 | 14,005 | CHSM66N(DG)/F-BH-730 leads by 5,340 places |


## Questions


### Which panel is better: Astronergy CHSM66N(DG)/F-BH-730 or Astronergy CHSM54RNs(DG)(BLH)/F-BH-455W?

According to our database: **Astronergy CHSM66N(DG)/F-BH-730** has higher module efficiency (**23.50%** vs **22.80%**). See the full spec comparison and 30-year energy simulation above for a complete picture.


### What is the efficiency of Astronergy CHSM66N(DG)/F-BH-730 and Astronergy CHSM54RNs(DG)(BLH)/F-BH-455W?

**Astronergy CHSM66N(DG)/F-BH-730** has a module efficiency of **23.50%**, while **Astronergy CHSM54RNs(DG)(BLH)/F-BH-**455 W**** is **22.80%**. Higher efficiency means more electricity from the same roof area - useful when space is limited.


### What cell technology does Astronergy CHSM66N(DG)/F-BH-730 use vs Astronergy CHSM54RNs(DG)(BLH)/F-BH-455W?

**Astronergy CHSM66N(DG)/F-BH-730** uses **TOPCon** cells; **Astronergy CHSM54RNs(DG)(BLH)/F-BH-**455 W**** 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 Astronergy CHSM66N(DG)/F-BH-730 and Astronergy CHSM54RNs(DG)(BLH)/F-BH-455W?

**Astronergy CHSM66N(DG)/F-BH-730** has a **30 years** power warranty; **Astronergy CHSM54RNs(DG)(BLH)/F-BH-**455 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 Astronergy CHSM66N(DG)/F-BH-730 and Astronergy CHSM54RNs(DG)(BLH)/F-BH-455W bifacial panels?

Both **Astronergy CHSM66N(DG)/F-BH-730** and **Astronergy CHSM54RNs(DG)(BLH)/F-BH-**455 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

- [Astronergy CHSM66N(DG)/F-BH-730 vs Astronergy CHSM66N(DG)/F-BH-735](https://comparepv.com/compare/astronergy-chint-new-energy-technology-co-ltd-chsm66n-dg-f-bh-730/astronergy-chsm66n-dg-f-bh-735) - One difference: module efficiency
- [Astronergy CHSM66N(DG)/F-BH-730 vs Astronergy CHSM66N(DG)/F-BH-725](https://comparepv.com/compare/astronergy-chint-new-energy-technology-co-ltd-chsm66n-dg-f-bh-730/astronergy-chint-new-energy-technology-co-ltd-chsm66n-dg-f-bh-725) - One difference: module efficiency
- [Astronergy CHSM66N(DG)/F-BH-730 vs Astronergy CHSM66N(DG)/F-BH-720](https://comparepv.com/compare/astronergy-chint-new-energy-technology-co-ltd-chsm66n-dg-f-bh-730/astronergy-chint-new-energy-technology-co-ltd-chsm66n-dg-f-bh-720) - 3 differences, the largest is module efficiency
- [Astronergy CHSM66N(DG)/F-BH-730 vs Astronergy CHSM66N(DG)/F-BH-715](https://comparepv.com/compare/astronergy-chint-new-energy-technology-co-ltd-chsm66n-dg-f-bh-730/astronergy-chint-new-energy-technology-co-ltd-chsm66n-dg-f-bh-715) - 3 differences, the largest is module efficiency
- [Astronergy CHSM66N(DG)/F-BH-730 vs Astronergy CHSM66N(DG)/F-BH-710](https://comparepv.com/compare/astronergy-chint-new-energy-technology-co-ltd-chsm66n-dg-f-bh-730/astronergy-chint-new-energy-technology-co-ltd-chsm66n-dg-f-bh-710) - 3 differences, the largest is module efficiency
- [Astronergy CHSM54RNs(DG)(BLH)/F-BH-455W vs Astronergy CHSM54RNs(DG)(BLH)/F-BH-460W](https://comparepv.com/compare/astronergy-chsm54rns-dg-blh-f-bh-455w/astronergy-chsm54rns-dg-blh-f-bh-460w) - One difference: module efficiency


---

Source: https://comparepv.com/compare/astronergy-chint-new-energy-technology-co-ltd-chsm66n-dg-f-bh-730/astronergy-chsm54rns-dg-blh-f-bh-455w

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.