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650 vs 655 19 of 19 identical Swap Change panels

Astronergy CHSM66RN(DG)/F-BQ-650 vs Astronergy CHSM66RN(DG)/F-BQ-655

Astronergy CHSM66RN(DG)/F-BQ-650
CHSM66RN(DG)/F-BQ-650
650 Wp 24.10 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Astronergy CHSM66RN(DG)/F-BQ-655
CHSM66RN(DG)/F-BQ-655
655 Wp 24.20 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

Identical on every published parameter

All 19 comparable parameters agree. Two records this alike are usually one panel sold under two names, or two bins of the same production line - decide on price and on who you would rather buy from.

How alike are they
19 of 19 comparable
parameters are identical
identical differs
01

What actually differs

0 of 19 parameters

Every comparable parameter agrees. The full specification is below.

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
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.
650
21,978 kWh
655
22,148 kWh
Lifetime gap
170 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 650 655
Standard test conditions 25 °C 100.0% of rated power 650 W 655 W
Cool, bright day 40 °C 96.1% of rated power 625 W 629 W
Typical summer roof 55 °C 92.2% of rated power 599 W 604 W
Hot roof 70 °C 88.3% of rated power 574 W 578 W
03

Full specification

Parameter 650 655 Difference
Power and efficiency
Rated power 650 Wp 655 Wp Effectively the same
Module efficiency 24.10 % 24.20 % Effectively the same
Power density 240.6 Wp/m² 242.5 Wp/m² Effectively the same
Open-circuit voltage 48.98 V 49.13 V Effectively the same
Voltage at max power 41.14 V 41.27 V Effectively the same
Short-circuit current 16.58 A 16.65 A Effectively the same
Current at max power 15.80 A 15.87 A Effectively the same
Temperature
Temperature coefficient -0.260 %/°C -0.260 %/°C Same
Mechanical
Dimensions 2382x1134x30 mm 2382x1134x30 mm Same
Module area 2.701 m² 2.701 m² Same
Weight 32.0 kg 32.0 kg Same
Weight per kWp 49.2 kg/kWp 48.9 kg/kWp Effectively the same
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.35 %/yr 0.35 %/yr Same
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 264 264 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#219 vs #184
655 leads by 35 places
Power density
#233 vs #172
655 leads by 61 places
Heat behaviour
#511 vs #511
Tied - the same position in the database
Weight
#2,810 vs #2,533
655 leads by 277 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#878 vs #732
655 leads by 146 places
05

More useful comparisons

Open the full database
Same series, other bin
Astronergy CHSM66RN(DG)/F-BQ-650 vs Astronergy CHSM66RN(DG)/F-BQ-670
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66RN(DG)/F-BQ-650 vs Astronergy CHSM66RN(DG)/F-BQ
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66RN(DG)/F-BQ-650 vs Astronergy CHSM66RN(DG)/F-BQ-665
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66RN(DG)/F-BQ-650 vs Astronergy CHSM66RN(DG)/F-BQ-660
3 differences, the largest is module efficiency
Same series, other bin
Astronergy CHSM66RN(DG)/F-BQ-650 vs Astronergy CHSM66RN(DG)/F-BQ-645
One difference: module efficiency
Same manufacturer
Astronergy CHSM66RN(DG)/F-BQ-650 vs Astronergy CHSM66N(DG)/F-BH-735
12 differences, the largest is rated power
06

Written summary

07

Questions about this pairing

Which panel is better: Astronergy CHSM66RN(DG)/F-BQ-650 or Astronergy CHSM66RN(DG)/F-BQ-655?
According to our database: Astronergy CHSM66RN(DG)/F-BQ-655 has higher module efficiency (24.20% vs 24.10%). 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-650 and Astronergy CHSM66RN(DG)/F-BQ-655?
Astronergy CHSM66RN(DG)/F-BQ-650 has a module efficiency of 24.10%, while Astronergy CHSM66RN(DG)/F-BQ-655 is 24.20%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Astronergy CHSM66RN(DG)/F-BQ-650 use vs Astronergy CHSM66RN(DG)/F-BQ-655?
Astronergy CHSM66RN(DG)/F-BQ-650 uses TOPCon cells; Astronergy CHSM66RN(DG)/F-BQ-655 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-650 and Astronergy CHSM66RN(DG)/F-BQ-655?
Astronergy CHSM66RN(DG)/F-BQ-650 has a 30 years power warranty; Astronergy CHSM66RN(DG)/F-BQ-655 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-650 and Astronergy CHSM66RN(DG)/F-BQ-655 bifacial panels?
Both Astronergy CHSM66RN(DG)/F-BQ-650 and Astronergy CHSM66RN(DG)/F-BQ-655 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.