---
title: "Astronergy CHSM48RN(DG)(BLH)/F-BH-450 vs Astronergy CHSM78N(DG)/F-BH-650W - Solar Panel Comparison | ComparePV"
description: "Compare Astronergy CHSM48RN(DG)(BLH)/F-BH-450 vs Astronergy CHSM78N(DG)/F-BH-650W 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-chsm48rn-dg-blh-f-bh-450/astronergy-chsm78n-dg-f-bh-650w"
updated: 2026-09-11
---

# Astronergy CHSM48RN(DG)(BLH)/F-BH-450 vs Astronergy CHSM78N(DG)/F-BH-650W

CHSM78N(DG)/F-BH-650W leads on the differences that matter

The largest is module efficiency: 0.80 pp more efficient. 7 of 19 comparable parameters are identical.


## The two panels


| Attribute | A | B |
| --- | --- | --- |
| Panel | [Astronergy CHSM48RN(DG)(BLH)/F-BH-450](https://comparepv.com/panel/astronergy-chint-new-energy-technology-co-ltd-chsm48rn-dg-blh-f-bh-450) | [Astronergy CHSM78N(DG)/F-BH-650W](https://comparepv.com/panel/astronergy-chsm78n-dg-f-bh-650w) |
| Manufacturer | Astronergy | Astronergy |
| Power | 450 Wp | 650 Wp |
| Efficiency | 22.50 % | 23.30 % |
| Technology | TOPCon | TOPCon |


## Where they differ

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


| Parameter | CHSM48RN(DG)(BLH)/F-BH-450 | CHSM78N(DG)/F-BH-650W | Difference |
| --- | --- | --- | --- |
| Module efficiency | 22.50 % | 23.30 % | +0.80 pp for CHSM78N(DG)/F-BH-650W |
| Rated power | 450 Wp | 650 Wp | +200 W for CHSM78N(DG)/F-BH-650W |
| Weight | 24.5 kg | 34.7 kg | -10.2 kg for CHSM48RN(DG)(BLH)/F-BH-450 |
| Product warranty | 25 yrs | 15 yrs | +10 yrs for CHSM48RN(DG)(BLH)/F-BH-450 |
| Power density | 225.2 Wp/m² | 232.5 Wp/m² | +7.3 Wp/m² for CHSM78N(DG)/F-BH-650W |
| Open-circuit voltage | 36.59 V | 57.01 V | 20.42 V apart |
| Module area | 1.998 m² | 2.795 m² | 0.797 m² apart |
| Short-circuit current | 15.61 A | 14.51 A | 1.10 A apart |
| Voltage at max power | 30.51 V | 47.12 V | 16.61 V apart |
| Cell count | 96 | 156 | 60 cells apart |
| Dimensions | 1762x1134x30 mm | 2465x1134x30 mm | 1762x1134x30 mm vs 2465x1134x30 mm |
| Current at max power | 14.75 A | 13.80 A | 0.95 A apart |


## Every compared parameter


| Parameter | CHSM48RN(DG)(BLH)/F-BH-450 | CHSM78N(DG)/F-BH-650W |
| --- | --- | --- |
| Rated power | 450 Wp | 650 Wp |
| Module efficiency | 22.50 % | 23.30 % |
| Power density | 225.2 Wp/m² | 232.5 Wp/m² |
| Open-circuit voltage | 36.59 V | 57.01 V |
| Voltage at max power | 30.51 V | 47.12 V |
| Short-circuit current | 15.61 A | 14.51 A |
| Current at max power | 14.75 A | 13.80 A |
| Temperature coefficient | -0.290 %/°C | -0.290 %/°C |
| Dimensions | 1762x1134x30 mm | 2465x1134x30 mm |
| Module area | 1.998 m² | 2.795 m² |
| Weight | 24.5 kg | 34.7 kg |
| Weight per kWp | 54.4 kg/kWp | 53.4 kg/kWp |
| Product warranty | 25 yrs | 15 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 | 96 | 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, CHSM48RN(DG)(BLH)/F-BH-450:** 15,098 kWh
- **Cumulative output, CHSM78N(DG)/F-BH-650W:** 21,809 kWh
- **Gap:** 6,711 kWh


## Output when hot


| Condition | Cell temperature | CHSM48RN(DG)(BLH)/F-BH-450 | CHSM78N(DG)/F-BH-650W | Retained |
| --- | --- | --- | --- | --- |
| Standard test conditions | 25 °C | 450 W | 650 W | 100.0% of rated power |
| Cool, bright day | 40 °C | 430 W | 622 W | 95.7% of rated power |
| Typical summer roof | 55 °C | 411 W | 593 W | 91.3% of rated power |
| Hot roof | 70 °C | 391 W | 565 W | 87.0% of rated power |


## Against the whole database


| Measure | CHSM48RN(DG)(BLH)/F-BH-450 | CHSM78N(DG)/F-BH-650W | Out of | Note |
| --- | --- | --- | --- | --- |
| Efficiency | #4,222 | #1,017 | 14,005 | CHSM78N(DG)/F-BH-650W leads by 3,205 places |
| Power density | #4,225 | #1,222 | 14,005 | CHSM78N(DG)/F-BH-650W leads by 3,003 places |
| Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database |
| Weight | #8,755 | #7,283 | 14,005 | CHSM78N(DG)/F-BH-650W leads by 1,472 places |
| Warranty | #21 | #21 | 14,005 | Tied - the same position in the database |
| Overall | #6,225 | #1,318 | 14,005 | CHSM78N(DG)/F-BH-650W leads by 4,907 places |


## Questions


### Which panel is better: Astronergy CHSM48RN(DG)(BLH)/F-BH-450 or Astronergy CHSM78N(DG)/F-BH-650W?

According to our database: **Astronergy CHSM78N(DG)/F-BH-**650 W**** has higher module efficiency (**23.30%** vs **22.50%**). See the full spec comparison and 30-year energy simulation above for a complete picture.


### What is the efficiency of Astronergy CHSM48RN(DG)(BLH)/F-BH-450 and Astronergy CHSM78N(DG)/F-BH-650W?

**Astronergy CHSM48RN(DG)(BLH)/F-BH-450** has a module efficiency of **22.50%**, while **Astronergy CHSM78N(DG)/F-BH-**650 W**** is **23.30%**. Higher efficiency means more electricity from the same roof area - useful when space is limited.


### What cell technology does Astronergy CHSM48RN(DG)(BLH)/F-BH-450 use vs Astronergy CHSM78N(DG)/F-BH-650W?

**Astronergy CHSM48RN(DG)(BLH)/F-BH-450** uses **TOPCon** cells; **Astronergy CHSM78N(DG)/F-BH-**650 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 CHSM48RN(DG)(BLH)/F-BH-450 and Astronergy CHSM78N(DG)/F-BH-650W?

**Astronergy CHSM48RN(DG)(BLH)/F-BH-450** has a **30 years** power warranty; **Astronergy CHSM78N(DG)/F-BH-**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 Astronergy CHSM48RN(DG)(BLH)/F-BH-450 and Astronergy CHSM78N(DG)/F-BH-650W bifacial panels?

Both **Astronergy CHSM48RN(DG)(BLH)/F-BH-450** and **Astronergy CHSM78N(DG)/F-BH-**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.


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Source: https://comparepv.com/compare/astronergy-chint-new-energy-technology-co-ltd-chsm48rn-dg-blh-f-bh-450/astronergy-chsm78n-dg-f-bh-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.