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CHSM66N(DG)/F-BH-705 vs CHSM66RN(DG)/F-BQ-670 5 of 19 identical Swap Change panels

Astronergy CHSM66N(DG)/F-BH-705 vs Astronergy CHSM66RN(DG)/F-BQ-670

CHSM66N(DG)/F-BH-705
705 Wp 22.70 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Astronergy CHSM66RN(DG)/F-BQ-670
CHSM66RN(DG)/F-BQ-670
670 Wp 24.80 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

CHSM66RN(DG)/F-BQ-670 leads on the differences that matter

The largest is module efficiency: 2.10 pp more efficient. 5 of 19 comparable parameters are identical.

See all 14 differences
How alike are they
5 of 19 comparable
parameters are identical
identical differs
01

What actually differs

14 of 19 parameters
Parameter CHSM66N(DG)/F-BH-705 CHSM66RN(DG)/F-BQ-670 Difference
Module efficiency 22.70 % 24.80 % 2.10 pp more efficient
Power density 227.0 Wp/m² 248.0 Wp/m² 21.1 Wp/m² higher
Temperature coefficient -0.290 %/°C -0.260 %/°C 0.030 %/°C better in heat
Rated power 705 Wp 670 Wp 35 W more power
Weight 38.0 kg 32.0 kg 6.0 kg lighter
Weight per kWp 53.9 kg/kWp 47.8 kg/kWp 6.1 kg/kWp lighter
Module area 3.106 m² 2.701 m² 0.405 m² apart
Short-circuit current 18.43 A 16.87 A 1.56 A apart
Annual degradation 0.40 %/yr 0.35 %/yr 0.05 %/yr slower
Cell count 132 264 132 cells apart
Current at max power 17.49 A 16.09 A 1.40 A apart
Open-circuit voltage 48.57 V 49.58 V 1.01 V apart
Dimensions 2384x1303x33 mm 2382x1134x30 mm 2384x1303x33 mm vs 2382x1134x30 mm
Voltage at max power 40.31 V 41.65 V 1.34 V apart
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
CHSM66N(DG)/F-BH-705
23,654 kWh
CHSM66RN(DG)/F-BQ-670
22,655 kWh
Lifetime gap
999 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario CHSM66N(DG)/F-BH-705 CHSM66RN(DG)/F-BQ-670
Standard test conditions 25 °C 100.0% of rated power 705 W 670 W
Cool, bright day 40 °C 95.7% of rated power 674 W 644 W
Typical summer roof 55 °C 91.3% of rated power 644 W 618 W
Hot roof 70 °C 87.0% of rated power 613 W 592 W
03

Full specification

Parameter CHSM66N(DG)/F-BH-705 CHSM66RN(DG)/F-BQ-670 Difference
Power and efficiency
Rated power 705 Wp 670 Wp +35 W for CHSM66N(DG)/F-BH-705
Module efficiency 22.70 % 24.80 % +2.10 pp for CHSM66RN(DG)/F-BQ-670
Power density 227.0 Wp/m² 248.0 Wp/m² +21.1 Wp/m² for CHSM66RN(DG)/F-BQ-670
Open-circuit voltage 48.57 V 49.58 V 1.01 V apart
Voltage at max power 40.31 V 41.65 V 1.34 V apart
Short-circuit current 18.43 A 16.87 A 1.56 A apart
Current at max power 17.49 A 16.09 A 1.40 A apart
Temperature
Temperature coefficient -0.290 %/°C -0.260 %/°C +0.030 %/°C for CHSM66RN(DG)/F-BQ-670
Mechanical
Dimensions 2384x1303x33 mm 2382x1134x30 mm 2384x1303x33 mm vs 2382x1134x30 mm
Module area 3.106 m² 2.701 m² 0.405 m² apart
Weight 38.0 kg 32.0 kg -6.0 kg for CHSM66RN(DG)/F-BQ-670
Weight per kWp 53.9 kg/kWp 47.8 kg/kWp -6.1 kg/kWp for CHSM66RN(DG)/F-BQ-670
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.35 %/yr -0.05 %/yr for CHSM66RN(DG)/F-BQ-670
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 132 264 132 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#3,307 vs #12
CHSM66RN(DG)/F-BQ-670 leads by 3,295 places
Power density
#3,361 vs #14
CHSM66RN(DG)/F-BQ-670 leads by 3,347 places
Heat behaviour
#2,165 vs #511
CHSM66RN(DG)/F-BQ-670 leads by 1,654 places
Weight
#8,027 vs #1,884
CHSM66RN(DG)/F-BQ-670 leads by 6,143 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#747 vs #295
CHSM66RN(DG)/F-BQ-670 leads by 452 places
05

More useful comparisons

Open the full database
Same series, other bin
Astronergy CHSM66N(DG)/F-BH-705 vs Astronergy CHSM66N(DG)/F-BH-735
6 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66N(DG)/F-BH-705 vs Astronergy CHSM66N(DG)/F-BH-730
4 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66N(DG)/F-BH-705 vs Astronergy CHSM66N(DG)/F-BH-725
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66N(DG)/F-BH-705 vs Astronergy CHSM66N(DG)/F-BH-720
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66N(DG)/F-BH-705 vs Astronergy CHSM66N(DG)/F-BH-715
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66N(DG)/F-BH-705 vs Astronergy CHSM66N(DG)/F-BH-710
One difference: module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Astronergy CHSM66N(DG)/F-BH-705 or Astronergy CHSM66RN(DG)/F-BQ-670?
According to our database: Astronergy CHSM66RN(DG)/F-BQ-670 has higher module efficiency (24.80% vs 22.70%); Astronergy CHSM66RN(DG)/F-BQ-670 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 CHSM66N(DG)/F-BH-705 and Astronergy CHSM66RN(DG)/F-BQ-670?
Astronergy CHSM66N(DG)/F-BH-705 has a module efficiency of 22.70%, while Astronergy CHSM66RN(DG)/F-BQ-670 is 24.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Astronergy CHSM66N(DG)/F-BH-705 use vs Astronergy CHSM66RN(DG)/F-BQ-670?
Astronergy CHSM66N(DG)/F-BH-705 uses TOPCon cells; Astronergy CHSM66RN(DG)/F-BQ-670 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-705 and Astronergy CHSM66RN(DG)/F-BQ-670?
Astronergy CHSM66N(DG)/F-BH-705 has a 30 years power warranty; Astronergy CHSM66RN(DG)/F-BQ-670 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-705 and Astronergy CHSM66RN(DG)/F-BQ-670 bifacial panels?
Both Astronergy CHSM66N(DG)/F-BH-705 and Astronergy CHSM66RN(DG)/F-BQ-670 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 41 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.