product years: 25; performance years: 30; end of warranty pct: ~87-89% at yr 30; annual degradation pct: ~0.4%/yr; labor coverage: No/limited
PVEL scorecard
Not a 2026 Top Performer. Not listed
Price tier
mid
Risks to weigh
Thin US distribution and service network
Specifications as stated by the manufacturer; confirm on the current datasheet and warranty document.
Hyundai solar panels on the CEC certified list
173 certified models, 315–650 W, up to 23.5% efficient. Highest-efficiency models shown. See all models.
Model
Watts
Efficiency
Technology
Temp. coefficient
HiN-T650NJ
650
23.5%
Mono-c-Si
-0.27256%/°C
HiS-T645NJ
645
23.4%
Mono-c-Si
-0.2937%/°C
HiN-T600NI
600
23.4%
Mono-c-Si
-0.408%/°C
HiN-T645NJ
645
23.3%
Mono-c-Si
-0.27256%/°C
HiS-T640NJ
640
23.2%
Mono-c-Si
-0.2937%/°C
HiN-T595NI
595
23.2%
Mono-c-Si
-0.408%/°C
HiN-T450NF(BK)
450
23.2%
Mono-c-Si
-0.29831%/°C
HiN-T640NJ
640
23.1%
Mono-c-Si
-0.27256%/°C
HiS-T635NJ
635
23%
Mono-c-Si
-0.2937%/°C
HiN-T590NI
590
23%
Mono-c-Si
-0.408%/°C
HiN-T635NJ
635
22.9%
Mono-c-Si
-0.27256%/°C
HiN-T445NF(BK)
445
22.9%
Mono-c-Si
-0.29831%/°C
Choosing equipmentA well-installed mid-tier system beats a premium brand installed badly. Ask quotes to name exact models, compare warranties in writing, and check that the company backing a 25-year warranty is financially healthy. Compare your quotes.