Solar energy roofs

Take charge of your own energy revolution

With oil and gas running out, the demand for energy increasing and its cost rising, more and more people are taking heat and electricity generation into their own hands. Photovoltaic and solar-thermal energy are sustainable, environmentally friendly alternative energy sources.

Nelskamp's solar energy systems

Nelskamp's range includes photovoltaic and hybrid modules as well as a solar heating system. All our solar energy roofs are characterized by their efficiency and aesthetics:

  • "SolarPowerPack", a pure heating system
  • "MS 5 PV", an elegant power plant on your roof
  • "2Power" and "MS 5 2Power" generate heat and electricity in one module


The size of a system depends, for example, on the number of inhabitants in the house and on the usable surface area of the roof. Using an evaluation form, an expert can calculate the optimal collector surface or system size.

Nelskamp solar energy roofs

Heat and electricity in one module: 2Power

Until now, if you wanted to produce both electricity and hot water you had to install two independent systems on the roof, one photovoltaic and one solar-thermal. This led to lack of space and a cluttered appearance. Often you had to choose between using the roof to generate electricity or warm water. Today 2Power combines photovoltaic and solar-thermal energy. It works according to a double principle: generate electricity, use the heat and thus achieve the best possible yield.

Use the sun’s energy twice

In the summer, PV modules can heat up to 80 degrees Celsius. It therefore makes sense to use this heat. In the 2Power system, a solar fluid flows through a full-surface heat exchanger attached to the back of the module. The fluid is heated and transports this heat to the heat exchanger of the layered thermal energy storage tank. A pump ensures a dynamic flow of the liquid between the module on the roof and the storage tank.

This also has a positive side effect: the modules stay cooler than conventional modules as their heat passes into the storage tank. This increases their yield because PV systems are more efficient at lower temperatures.

Solar energy, even in the winter

In the winter, conditions for electricity generation are often good: clear air, high radiant intensity and low temperatures. But when they are covered with snow and ice, solar energy systems have a very limited functionality. To prevent this as much as possible, Nelskamp 2Power modules have a defrosting function. This enables them to harvest the sun’s energy even in the winter.

Aesthetically pleasing

The 2Power modules look similar to conventional PV systems. They are just as flat and have the same dimensions. But because only one type of module is installed, the roof is uniform. Cluttered roofs with different collectors for electricity generation and warm water are a thing of the past.