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Electricity and heat from one module: 2Power

Electricity and heat from one module: 2Power

In the summer months, photovoltaic modules heat up to 80 degrees Celsius. It therefore makes sense to use this energy as well (for power generation). With the 2Power, a solar fluid flows through a full-surface heat exchanger located on the back of the module. The liquid heats up and releases this energy again when it flows through the heat exchanger in the stratified storage tank. A pump causes the liquid to circulate dynamically between the module on the roof and the storage tank.


Product Benefits

In the past, homeowners who wanted to generate both electricity and heat on their roofs needed two independent systems – one to produce solar thermal energy, and one to generate solar power – resulting in a busy-looking roof and a lack of space. Most therefore faced a choice between using their roof space to generate either electricity or heat. 2Power combines both solar power and solar thermal energy. It works on the dual principle of generating electricity and utilising heat to achieve maximum energy yield.

  • Optimum solar gain: heat and own electricity – one module
  • Highly efficient monocrystalline cells
  • Harmonious appearance: dark cells – black frame – black rear panel foil
  • Innovative absorber technology for heat utilisation over the entire area
  • Active cell cooling for higher performance
  • Defrost function prevents snow accumulation
  • Positive power tolerance: from 0 W to +5 W for a better yield
  • 2Power – trademark registered with the German Patent and Trademark Office
  • Product warranty: 10 years
  • Performance warranty: 10 years - 90% of the rated output, 25 years - 80% of the rated output
  • Tested: TÜV Rheinland and ITW Stuttgart
  • Made-in-Germany quality
  • Eligible for PV subsidies

Colors & Surfaces


Technical Data

Electrical output Pmax 305 W
Thermal output Pmax 685 W
Max. standstill temperature 80°C
Max. system pressure Pmax 4 bar
Operating voltage Vmpp 32,94 V
Operating current Impp 9,26 A
No load voltage Voc 39,62 V
Short circuit current Isc 9,01 A
Max. system voltage 1000 V
Temperature coefficient Voc - 0,35%/°C
Temperature coefficient Isc + 0,055%/°C
Temperature coefficient Pmpp - 0,45%/°C
Hail resistance acc. to IEC 61215 + IEC 61730
Weight without solar fluid approx. 21 kg
Weight with solar fluid approx. 24 kg
Snow load 5400 N/m²
Wind load 2400 N/m²
Module size 1700 x 1000 x 40 mm
Connection plug Compatible with MC4
Solar cables 2 x 4,0 mm², length 1000 mm
Subject to change without notice.



Dachziegelwerke Nelskamp GmbH
Waldweg 6 · 46514 Schermbeck · Germany
+49 (2853) 91 30 0
+49 (2853) 37 59