Many companies focus on the module efficiency when planning to install a solar system. Efficiency and nominal power (P_nom) of a PV module are measured under standard test conditions (STC) (1000 W/m2, AM 1.5, 25 °C Cell Temperature).

Experts agree that real world operating conditions vary greatly from standard test conditions, but have a much greater impact on the final energy output produced. Hence the expressiveness of the efficiency and maximum power to judge the performance of a solar system are misleading.
The brightness of the sun, latitude, season, time of the day, air mass, cloud cover and pollution are factors  in the specific energy output of a photovoltaic system. Additionally, increasing cell temperature - impacted by ambient temperature, insolation and wind - decreases energy production.

As all photovoltaic modules are specifically influenced by real world outdoor conditions, the specific energy - i.e. the electricity generated and used or fed into the grid - is the main indicator of the suitability of a particular solar system at a certain location.

Solar Integrated takes these factor into account and has developed different products to accommodate a variety of constellations focusing on maximizing specific energy output.

For industrial and commercial roofs with static restraints we have developed our solar membrane roof and our solar metal roof. Both of them are comparably lightweight and achieve optimal energy output even when placed nearly flat or integrated into buildings.

The reason is that in both we are using thin-film amorphous triple junction solar technology from UNI-SOLAR^®. Cells of this technology are able to split the light spectrum, allowing them to absorb red, green and blue light in different layers. As they have a higher blue light absorption rate , they begin producing energy earlier in the day until later then conventional modules. Therefore this PV technology  is also able to generate energy under low light, overcast or cloudy conditions, or if placed in non-optimal orientation.

Because thin-film modules in general and the amorphous silicon modules in particular have a lower temperature coefficient then crystalline modules, they do not require any cooling by e.g. wind and hence do not need to be propped up, allowing building integration without compromising on energy output.