Breakthrough: Tesla massively increases the efficiency of solar roof shingles
For Tesla, the solar roof tiles represent the last piece of the puzzle for a closed system. This is because the group offers the complete range from green electricity generation to storage and consumption in the electric car. At least that is the theory. So far, however, Tesla has mainly struggled with problems with solar roof tiles. So the installation brings with it certain difficulties. Because house roofs can look very different. Accordingly, individual solutions have to be found in each case. This year, Tesla has therefore introduced a new “Roof Complexity Factor”. For most potential customers, this meant that prices were increased. The work on the house roof can only be carried out by trained roofers who should also have knowledge of electronics. However, such specialists are difficult to find. But now Tesla could have made an important breakthrough.
The maximum power increased by around 13 watts
So has the Industry service Electrek the data sheet for a solar roof tile called SR72T1 got leaked. This shows that nothing has changed in terms of size: the individual shingles are – just like the previous model SR60T1 – 430 x 1,140 mm. The decisive value is therefore different: the new roof tiles have a maximum output of 71.67 watts. This represents an enormous improvement over the previously installed shingles. These only came to a value of 58.5 watts. This was measured at an irradiance of 1,000 watts per square meter. The temperature of the cells was also 25 degrees in both cases. In practice, electricity production is therefore likely to be lower in each case. However, this does not change the fact that the new bricks are significantly more efficient. In other words: fewer solar shingles are needed to produce the same amount of electricity.
A higher degree of efficiency simplifies the work on the roof
This is particularly important when installing on the roofs of the house. Because for technical reasons, a mixture of classic bricks and solar roof tiles is usually laid there. However, these look exactly the same. Logically, however, the solar modules are installed where they are most efficient. If fewer solar roof shingles are now required to produce the same amount of electricity, the complexity of the installation is reduced – among other things because fewer power cables have to be laid. On the one hand, this reduces costs, but on the other hand, it also speeds up the process. Ultimately, this could help to process the backlog of orders a little faster. In the medium term, Tesla then wants to standardize the process to such an extent that the group only produces the solar roof tiles. The installation, in turn, would then be carried out by specialist companies independently and for their own account.
Incidentally, solar roof tiles are not a Tesla invention: A German company also offers corresponding solutions.