Find replacement for TommaTech TT615-144TN10

615 W TOPCon solar panel with 144 cells. Voc 52.98 V · Isc 14.6 A · TcVoc -0.26%/°C.

Original Panel

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Same technology onlyShow only panels with matching cell technology

Compatible Replacements

89 panels found · 3341 panels excluded

TommaTech TT615-144TNB10

615 W

TOPCon

100Exact match

Parameter	Original	Replacement	Deviation
Voc	52.98 V	52.98 V	0.0%
Vmpp	44.35 V	44.35 V	0.0%
Isc	14.6 A	14.6 A	0.0%
Impp	13.87 A	13.87 A	0.0%
TcVoc	-0.26 %/°C	-0.26 %/°C	±0.000 %/°C
TcPmax	-0.3 %/°C	-0.3 %/°C	±0.000 %/°C

TommaTech TT615-144TNB10 G2G

615 W

TOPCon

100Exact match

Parameter	Original	Replacement	Deviation
Voc	52.98 V	52.98 V	0.0%
Vmpp	44.35 V	44.35 V	0.0%
Isc	14.6 A	14.6 A	0.0%
Impp	13.87 A	13.87 A	0.0%
TcVoc	-0.26 %/°C	-0.26 %/°C	±0.000 %/°C
TcPmax	-0.3 %/°C	-0.3 %/°C	±0.000 %/°C

TommaTech TT615-144TNFB10 Dark Series

615 W

TOPCon

100Exact match

Parameter	Original	Replacement	Deviation
Voc	52.98 V	52.98 V	0.0%
Vmpp	44.35 V	44.35 V	0.0%
Isc	14.6 A	14.6 A	0.0%
Impp	13.87 A	13.87 A	0.0%
TcVoc	-0.26 %/°C	-0.26 %/°C	±0.000 %/°C
TcPmax	-0.3 %/°C	-0.3 %/°C	±0.000 %/°C

TommaTech TT615-144TNB10 Diamond Plus

615 W

TOPCon

100Exact match

Parameter	Original	Replacement	Deviation
Voc	52.98 V	52.98 V	0.0%
Vmpp	44.35 V	44.35 V	0.0%
Isc	14.6 A	14.6 A	0.0%
Impp	13.87 A	13.87 A	0.0%
TcVoc	-0.26 %/°C	-0.26 %/°C	±0.000 %/°C
TcPmax	-0.3 %/°C	-0.3 %/°C	±0.000 %/°C

TommaTech TT610-144TN10

610 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	52.98 V	52.78 V	0.4%
Vmpp	44.35 V	44.15 V	0.5%
Isc	14.6 A	14.54 A	0.4%
Impp	13.87 A	13.82 A	0.4%
TcVoc	-0.26 %/°C	-0.26 %/°C	±0.000 %/°C
TcPmax	-0.3 %/°C	-0.3 %/°C	±0.000 %/°C

TommaTech TT620-144TN10

620 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	52.98 V	53.18 V	0.4%
Vmpp	44.35 V	44.55 V	0.5%
Isc	14.6 A	14.66 A	0.4%
Impp	13.87 A	13.92 A	0.4%
TcVoc	-0.26 %/°C	-0.26 %/°C	±0.000 %/°C
TcPmax	-0.3 %/°C	-0.3 %/°C	±0.000 %/°C

TommaTech TT610-144TNB10

610 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	52.98 V	52.78 V	0.4%
Vmpp	44.35 V	44.15 V	0.5%
Isc	14.6 A	14.54 A	0.4%
Impp	13.87 A	13.82 A	0.4%
TcVoc	-0.26 %/°C	-0.26 %/°C	±0.000 %/°C
TcPmax	-0.3 %/°C	-0.3 %/°C	±0.000 %/°C

TommaTech TT620-144TNB10

620 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	52.98 V	53.18 V	0.4%
Vmpp	44.35 V	44.55 V	0.5%
Isc	14.6 A	14.66 A	0.4%
Impp	13.87 A	13.92 A	0.4%
TcVoc	-0.26 %/°C	-0.26 %/°C	±0.000 %/°C
TcPmax	-0.3 %/°C	-0.3 %/°C	±0.000 %/°C

TommaTech TT610-144TNB10 G2G

610 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	52.98 V	52.78 V	0.4%
Vmpp	44.35 V	44.15 V	0.5%
Isc	14.6 A	14.54 A	0.4%
Impp	13.87 A	13.82 A	0.4%
TcVoc	-0.26 %/°C	-0.26 %/°C	±0.000 %/°C
TcPmax	-0.3 %/°C	-0.3 %/°C	±0.000 %/°C

TommaTech TT620-144TNB10 G2G

620 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	52.98 V	53.18 V	0.4%
Vmpp	44.35 V	44.55 V	0.5%
Isc	14.6 A	14.66 A	0.4%
Impp	13.87 A	13.92 A	0.4%
TcVoc	-0.26 %/°C	-0.26 %/°C	±0.000 %/°C
TcPmax	-0.3 %/°C	-0.3 %/°C	±0.000 %/°C

TommaTech TT610-144TNFB10 Dark Series

610 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	52.98 V	52.78 V	0.4%
Vmpp	44.35 V	44.15 V	0.5%
Isc	14.6 A	14.54 A	0.4%
Impp	13.87 A	13.82 A	0.4%
TcVoc	-0.26 %/°C	-0.26 %/°C	±0.000 %/°C
TcPmax	-0.3 %/°C	-0.3 %/°C	±0.000 %/°C

TommaTech TT620-144TNFB10 Dark Series

620 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	52.98 V	53.18 V	0.4%
Vmpp	44.35 V	44.55 V	0.5%
Isc	14.6 A	14.66 A	0.4%
Impp	13.87 A	13.92 A	0.4%
TcVoc	-0.26 %/°C	-0.26 %/°C	±0.000 %/°C
TcPmax	-0.3 %/°C	-0.3 %/°C	±0.000 %/°C

String Compatibility Calculator

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Panel Matcher

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How the Algorithm Works

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Original Panel Specs

Voc

52.98 V

Vmpp

44.35 V

Isc

14.6 A

Impp

13.87 A

TcVoc

-0.26 %/°C

TcPmax

-0.3 %/°C

Pmax

615 W

Cells

144

Length

2278 mm

Width

1134 mm

Thickness

35 mm

Weight

29 kg

The TommaTech TT615-144TN10 is a 615 W solar panel. Finding a compatible replacement requires matching the original electrical characteristics — particularly Voc, Vmpp, Isc, and temperature coefficients — to ensure safe operation within the same string.

Use the form above to find panels that match these specifications. Then verify the replacement in the String Compatibility Calculator with your inverter.

Other models in this series

Power	Voc	Isc
590 W	51.98 V	14.3 A
595 W	52.18 V	14.36 A
600 W	52.38 V	14.42 A
605 W	52.58 V	14.48 A
610 W	52.78 V	14.54 A
620 W	53.18 V	14.66 A

Frequently Asked Questions

What specs must match when replacing the TommaTech TT615-144TN10?

The most critical specs to match are: cell count (must be exactly 144), Voc close to 52.98 V (within ±5%), and temperature coefficient TcVoc close to -0.26%/°C. If Voc differs significantly, the string voltage at extreme temperatures may shift outside the inverter's MPPT range. The replacement finder above pre-screens all candidates by these criteria.

Can I use a higher wattage replacement for the TommaTech TT615-144TN10?

A higher wattage panel usually has a higher Vmpp or Isc, which can affect string voltage and current. Small increases (up to 10–15%) are typically safe if the other electrical specs align. The replacement finder shows a compatibility score — 'Exact match' means the specs align closely. Always verify the replacement in the String Compatibility Calculator with your inverter before installation.

What happens if the replacement panel has different voltage specs?

If the replacement has a significantly different Voc or Vmpp, the string voltage may shift outside the inverter's MPPT range, reducing energy production or causing faults. This effect is amplified at temperature extremes: at low temperatures, voltage rises by the TcVoc coefficient. The replacement finder automatically accounts for this — it scores candidates by how closely the electrical specs match the original TommaTech TT615-144TN10.