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CHSM66RN(DG)/F-BQ vs CHSM66N(DG)/F-BH-735 7 of 19 identical Swap Change panels

Astronergy CHSM66RN(DG)/F-BQ vs Astronergy CHSM66N(DG)/F-BH-735

Astronergy CHSM66RN(DG)/F-BQ
CHSM66RN(DG)/F-BQ
670 Wp 24.80 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Astronergy CHSM66N(DG)/F-BH-735
CHSM66N(DG)/F-BH-735
735 Wp 23.70 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

CHSM66RN(DG)/F-BQ leads on the differences that matter

The largest is module efficiency: 1.10 pp more efficient. 7 of 19 comparable parameters are identical.

See all 12 differences
How alike are they
7 of 19 comparable
parameters are identical
identical differs
01

What actually differs

12 of 19 parameters
Parameter CHSM66RN(DG)/F-BQ CHSM66N(DG)/F-BH-735 Difference
Module efficiency 24.80 % 23.70 % 1.10 pp more efficient
Rated power 670 Wp 735 Wp 65 W more power
Power density 248.0 Wp/m² 236.6 Wp/m² 11.4 Wp/m² higher
Temperature coefficient -0.260 %/°C -0.290 %/°C 0.030 %/°C better in heat
Weight 32.0 kg 38.0 kg 6.0 kg lighter
Module area 2.701 m² 3.106 m² 0.405 m² apart
Short-circuit current 16.87 A 18.72 A 1.85 A apart
Weight per kWp 47.8 kg/kWp 51.7 kg/kWp 3.9 kg/kWp lighter
Annual degradation 0.35 %/yr 0.40 %/yr 0.05 %/yr slower
Cell count 264 132 132 cells apart
Current at max power 16.09 A 17.75 A 1.66 A apart
Dimensions 2382x1134x30 mm 2384x1303x33 mm 2382x1134x30 mm vs 2384x1303x33 mm
02

What it means on a roof

Thirty years of production
Each panel's own declared degradation curve, at 1,200 kWh/kWp a year
CHSM66RN(DG)/F-BQ
22,655 kWh
CHSM66N(DG)/F-BH-735
24,661 kWh
Lifetime gap
2,006 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario CHSM66RN(DG)/F-BQ CHSM66N(DG)/F-BH-735
Standard test conditions 25 °C 100.0% of rated power 670 W 735 W
Cool, bright day 40 °C 95.7% of rated power 644 W 703 W
Typical summer roof 55 °C 91.3% of rated power 618 W 671 W
Hot roof 70 °C 87.0% of rated power 592 W 639 W
03

Full specification

Parameter CHSM66RN(DG)/F-BQ CHSM66N(DG)/F-BH-735 Difference
Power and efficiency
Rated power 670 Wp 735 Wp +65 W for CHSM66N(DG)/F-BH-735
Module efficiency 24.80 % 23.70 % +1.10 pp for CHSM66RN(DG)/F-BQ
Power density 248.0 Wp/m² 236.6 Wp/m² +11.4 Wp/m² for CHSM66RN(DG)/F-BQ
Open-circuit voltage 49.58 V 49.77 V Effectively the same
Voltage at max power 41.65 V 41.41 V Effectively the same
Short-circuit current 16.87 A 18.72 A 1.85 A apart
Current at max power 16.09 A 17.75 A 1.66 A apart
Temperature
Temperature coefficient -0.260 %/°C -0.290 %/°C +0.030 %/°C for CHSM66RN(DG)/F-BQ
Mechanical
Dimensions 2382x1134x30 mm 2384x1303x33 mm 2382x1134x30 mm vs 2384x1303x33 mm
Module area 2.701 m² 3.106 m² 0.405 m² apart
Weight 32.0 kg 38.0 kg -6.0 kg for CHSM66RN(DG)/F-BQ
Weight per kWp 47.8 kg/kWp 51.7 kg/kWp -3.9 kg/kWp for CHSM66RN(DG)/F-BQ
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.35 %/yr 0.40 %/yr -0.05 %/yr for CHSM66RN(DG)/F-BQ
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 264 132 132 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#12 vs #517
CHSM66RN(DG)/F-BQ leads by 505 places
Power density
#14 vs #582
CHSM66RN(DG)/F-BQ leads by 568 places
Heat behaviour
#511 vs #2,165
CHSM66RN(DG)/F-BQ leads by 1,654 places
Weight
#1,884 vs #5,081
CHSM66RN(DG)/F-BQ leads by 3,197 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#295 vs #160
CHSM66N(DG)/F-BH-735 leads by 135 places
05

More useful comparisons

Open the full database
Same series, other bin
Astronergy CHSM66RN(DG)/F-BQ vs Astronergy CHSM66RN(DG)/F-BQ-670
The same specification on paper
Same series, other bin
Astronergy CHSM66RN(DG)/F-BQ vs Astronergy CHSM66RN(DG)/F-BQ-665
One difference: module efficiency
Same series, other bin
Astronergy CHSM66RN(DG)/F-BQ vs Astronergy CHSM66RN(DG)/F-BQ-660
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66RN(DG)/F-BQ vs Astronergy CHSM66RN(DG)/F-BQ-655
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66RN(DG)/F-BQ vs Astronergy CHSM66RN(DG)/F-BQ-650
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66RN(DG)/F-BQ vs Astronergy CHSM66RN(DG)/F-BQ-645
3 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Astronergy CHSM66RN(DG)/F-BQ or Astronergy CHSM66N(DG)/F-BH-735?
According to our database: Astronergy CHSM66RN(DG)/F-BQ has higher module efficiency (24.80% vs 23.70%); Astronergy CHSM66RN(DG)/F-BQ tolerates heat better (temp coeff -0.260%/°C vs -0.290%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Astronergy CHSM66RN(DG)/F-BQ and Astronergy CHSM66N(DG)/F-BH-735?
Astronergy CHSM66RN(DG)/F-BQ has a module efficiency of 24.80%, while Astronergy CHSM66N(DG)/F-BH-735 is 23.70%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Astronergy CHSM66RN(DG)/F-BQ use vs Astronergy CHSM66N(DG)/F-BH-735?
Astronergy CHSM66RN(DG)/F-BQ uses TOPCon cells; Astronergy CHSM66N(DG)/F-BH-735 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 CHSM66RN(DG)/F-BQ and Astronergy CHSM66N(DG)/F-BH-735?
Astronergy CHSM66RN(DG)/F-BQ has a 30 years power warranty; Astronergy CHSM66N(DG)/F-BH-735 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 CHSM66RN(DG)/F-BQ and Astronergy CHSM66N(DG)/F-BH-735 bifacial panels?
Both Astronergy CHSM66RN(DG)/F-BQ and Astronergy CHSM66N(DG)/F-BH-735 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.

Shop prices: See 37 Astronergy offers

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate. The thirty-year projection and the temperature scenarios are calculations from those figures, and each states its assumption above.