Building integrated solar cells (BIPV) represent an innovative approach to energy production within the building sector by combining the function of solar panels with traditional building materials. This can include roofs, facades, windows and other surfaces of the building. One of the main advantages of BIPV is that they can reduce construction costs by replacing common building materials, which can make them economically attractive for new construction or rehabilitation of existing buildings.

BIPV systems make it possible to utilize solar energy without compromising the building's aesthetics. This is particularly important in urban areas or in buildings with strict regulations for appearance and design. The use of integrated solar cells also makes it easier to implement renewable energy, which can contribute to reduced energy costs and a lower environmental impact.

In addition, there is the concept of building-mounted solar cell systems (BAPV), which refers to solar cell solutions that are installed after the building has been completed. While BIPV is primarily for new buildings, BAPV can be a flexible solution for existing buildings that want to increase their energy production by adding solar cells on roofs or facades.

Overall, with the technological advances and the growing demand for sustainable energy solutions, all surfaces of a building can potentially be turned into energy sources, which can provide significant benefits both economically and environmentally.